Dr Hamid Doostmohammadi

Dr Hamid Doostmohammadi

Research Associate

School of Engineering

Career Summary

Biography

Current Focus

The current research focus of Dr. Hamid Doostmohammadi is study of behaviour of Australian iron ores in ironmaking processes. This includes current and green sintering, and blast furnace ironmaking processes. He specifically puts light on use of iron ore in major ironmaking processes. An example is understanding of the cohesive zone of blast furnace by doing softening and melting experiments and also thermodynamic computations.

Blast furnace operations generates large amounts of carbon dioxide (CO2) every day. Replacing carbon monoxide (CO) with hydrogen (H2) inside the furnace results in generation of steam (H2O) instead of carbon dioxide. Another area of Hamid's work is sustainable production of iron and reducing carbon foot print during ironmaking processes. 

Research Background

Modern technologies increase demands on advanced materials. On the one hand constant development of new materials and on the other hand improvement of existing materials require high level of knowledge and expertise. This is especially true in the case of development of sustainable advanced materials. The focus of his research was in both areas while he has considered sustainability, efficiency and affordability of developed materials. He has extensive experience in process metallurgy and materials processing where he has worked with a wide range of metallic and composite materials including steel, aluminium alloys, copper alloys and aluminium matrix composites covering major parts of chain process, structure and properties. Also, improving quality of steel and aluminium alloys for better performance. Examples of his research are briefly explained below:

Steelmaking - Clean steel technologies 

Dr. Doostmohammadi's contribution to steelmaking came back to 2007 when he was an Associate Researcher in Jernkontoret (Swedish iron and steel producers' association) and also a PhD student at KTH Royal Institute of Technology in Stockholm-Sweden. At the time, his research was in the area of steelmaking with a focus on clean steel. Non-metallic inclusion composition, size and also morphology were studied by both 2D (cross-sectional analysis) and 3D (electrolytic extraction) methods. In addition, he used INCA-Feature program to detect inclusions by a Scanning Electron Microscope integrated with EDS and WDS technologies. The results of this study showed that the accuracy of the composition determination for non-metallic inclusions by the 3D method is higher compared to the 2D method.

Additionally, he widely applied computational thermodynamics based on Calphad to model equilibrium between slag/liquid metal/inclusions during ladle treatment of tool and bearing steelmaking. 


Advanced composite materials

He had the opportunity of supervising a group of graduate students to develop a new class of composite materials. Aluminium matrix composites and functionally graded aluminium composites as a class of light materials with high performance were designed and fabricated by a very cost-effective method. His research team developed custom based experimental equipment for compound and centrifugal casting to fabricate these composites. After a successful fabrication of a series of composites, developed equipment together with an image analysis software (which was patented later) gave me the opportunity to establish two new laboratories namely, Advanced Materials Lab and Image Processing Lab. These labs enabled his research team to fabricate, characterise and analyse the microstructure and mechanical properties of in-situ composites. His research team succeeded to fabricate and analyse Al-Al3Ti, Al-Al3Ni, Al-Al14Fe3, Al-(Al3Ti+Al2Cu) and Al-(Al7Cr+Al11Cr2) functionally graded in-situ composites.


Development of lead-free machinable alloys

Development of lead-free brass alloys which are safer material for drinking water is another example of his sustainable material development. He managed a group of graduate students to develop alternatives for toxic leaded-brass alloys. After fabricating, study of correlation between microstructure, mechanical properties and machinability of several alloyed brass he concluded that (Cu-Zn-Si), (Cu-Zn-Sn), (Cu-Zn-mg) and (Cu-Zn-Sb) alloys have improved machinability and are potential candidates for altering leaded brass alloys.

Double oxide film defects in liquid aluminium 

Double oxide films (bifilms) are a type of non-metallic inclusion and a major source of deteriorating mechanical properties of Al cast alloys. This defect consists of two oxide layers and a volume of air trapped in between. In a series of studies, Hamid and his colleague studied the behaviour of double oxide film defects in liquid Al-Sr, Al-Mg and Al-Ca alloys. In all experiments, active elements (Sr, Mg and Ca) reduced alumina layer in double oxide film and led to the formation of mixed oxides (spinels) and/or active element oxide. They concluded that, the addition of small amounts of active elements to liquid Al changed the nature of double oxide film and facilitated the bonding process between two oxide layers. In addition, the thermodynamic and kinetics of transformation of alumina layer in this defect was studied both theoretically (classical and computational thermodynamics) and also experimentally (DSC and TGA).  

Moreover, another series of his research was focused on the methods for removing or controlling of double oxide film. Among them, experimental and CFD modelling of mechanical stirring of the melt had shown promising results in removal of double oxide films from the liquid Al.


Qualifications

  • Doctor of Philosophy, KTH Royal Institute of Technology, Sweden

Keywords

  • Iron ore
  • Ironmaking
  • Process metallurgy
  • Steelmaking
  • Thermodynamics

Languages

  • English (Fluent)
  • Swedish (Working)
  • Russian (Fluent)
  • Persian (excluding Dari) (Fluent)

Fields of Research

Code Description Percentage
460501 Data engineering and data science 20
401908 Pyrometallurgy 40
401999 Resources engineering and extractive metallurgy not elsewhere classified 40

Professional Experience

UON Appointment

Title Organisation / Department
Research Associate University of Newcastle
School of Engineering
Australia

Academic appointment

Dates Title Organisation / Department
2/9/2019 - 29/2/2020 Researcher Royal Institute of Technology
Sweden
1/4/2015 - 1/9/2019 Associate professor University of Kerman
Iran, Islamic Republic of
1/5/2013 - 15/9/2015 Head of Department of Materials Engineering and Metallurgy University of Kerman
Iran, Islamic Republic of
1/3/2010 - 1/4/2015 Assistant professor University of Kerman
Iran, Islamic Republic of

Teaching

Code Course Role Duration
40-46-022 Principles of advanced thermodynamics and theory of kinetics in nanomaterials
University of Kerman
Course Responsible and Teacher 1/9/2016 - 1/5/2019
14-12-203 Thermodynamics of Materials
University of Kerman
Course responsible and Teacher 1/3/2010 - 1/5/2019
MH-2049 Advanced Process Science
Royal Institute of Technology

    Responsible for supervision of a group of students 1/9/2019 - 1/2/2020
    40-46-818 Simulation in Materials Engineering
    University of Kerman
    Course Responsible and Teacher 1/9/2011 - 1/5/2018
    14-12-225 Steelmaking
    University of Kerman
    Course Responsible and Teacher 1/9/2011 - 1/5/2015
    Edit

    Publications

    For publications that are currently unpublished or in-press, details are shown in italics.


    Journal article (23 outputs)

    Year Citation Altmetrics Link
    2021 Adineh M, Doostmohammadi H, 'A hybrid approach based on artificial neural network and cuckoo algorithm for optimization of the main cutting force during turning of Si brass alloys', SN Applied Sciences, 3 (2021)

    As an innovative approach in this study, artificial neural network and cuckoo algorithm have been applied to estimate and optimize the main cutting forces of various Si brass allo... [more]

    As an innovative approach in this study, artificial neural network and cuckoo algorithm have been applied to estimate and optimize the main cutting forces of various Si brass alloys during turning operation due to economic reasons. Accordingly, the chemical composition (Cu, Zn and Si contents) and process parameters (cutting speed, feed rate and depth of cut) are simultaneously implemented as input variables and the main cutting force is adjusted as an output variable. Moreover, the genetic algorithm is used to determine the optimum condition of the input parameters to obtain the lowest amounts of the main cutting force. Coupling of the hybrid cuckoo algorithm with artificial neural network has resulted in decreasing the mean absolute percentage error of the optimum structure (6-10-7-1) from 9.025 to 1.59E¿6%. The validation of the proposed model has been done by performing the new set of experimental tests. The measured and predicted main cutting forces are in good agreement. The Si brass alloys including Zn equivalent about 44.97 wt% has the lowest main cutting force due to the formation of the Widmanstäetten morphologies in the microstructure. The outcome of this study may be useful for machining industry of the free-cutting Si brasses.

    DOI 10.1007/s42452-020-04075-1
    2020 Yousefi M, Doostmohammadi H, 'Microstructural Evolution and Solidification Behavior of Functionally Graded In Situ Al-Cr Composites During Centrifugal Casting', INTERNATIONAL JOURNAL OF METALCASTING, 15 650-663 (2020)
    DOI 10.1007/s40962-020-00499-y
    Citations Scopus - 2Web of Science - 2
    2019 Yousefi M, Doostmohammadi H, 'Spatial and microstructural dependence of mechanical properties and wear performance of functionally graded Al TiAl

    Effect of morphology and spatial distribution of TiAl3 particles on the hardness, the tensile behavior and the wear performance of functionally graded Al¿TiAl3 in situ composite (... [more]

    Effect of morphology and spatial distribution of TiAl3 particles on the hardness, the tensile behavior and the wear performance of functionally graded Al¿TiAl3 in situ composite (FGC) was investigated. Initially, FGC was produced by interaction between solid Ti and liquid Al. Based on the spatial distribution and morphology of TiAl3 particles in the microstructure of FGC, three distinctive regions including blocky-particle region, mixed-particle region (blocky and short plate particles) and lengthy plate-particle region were studied. Results of this study showed that the blocky-particle region had promoted tensile strength as well as highly improved wear resistance. In addition, this region with higher density of blocky particles and low interparticle spacing showed a brittle fracture. The mixed-particle region with a lower density of blocky particles had a ductile fracture mechanism while the plate-particle region showed cleavage fracture. The dominant wear mechanism for regions including blocky particles was determined to be mild oxidation while it was delamination wear for regions containing plate particles. Finally, correlation between mechanical properties, wear resistance and microstructure of FGC was discussed.

    DOI 10.1007/s42452-019-1217-6
    Citations Scopus - 3
    2019 Adineh M, Doostmohammadi H, 'Microstructure, mechanical properties and machinability of Cu-Zn-Mg and Cu-Zn-Sb brass alloys', MATERIALS SCIENCE AND TECHNOLOGY, 35 1504-1514 (2019)
    DOI 10.1080/02670836.2019.1630089
    Citations Scopus - 4Web of Science - 3
    2019 Sistaninia M, Doostmohammadi H, Raiszadeh R, 'Formation Mechanisms and Microstructure Characterization of Al/Al3Ni In-situ Composite by Compound Casting', METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 50 3020-3026 (2019)
    DOI 10.1007/s11663-019-01682-1
    Citations Scopus - 4Web of Science - 3
    2019 Adineh M, Doostmohammadi H, Raiszadeh R, 'Effect of Si and Al on the microstructure, mechanical properties and machinability of 65Cu-35Zn brass', Iranian Journal of Materials Science and Engineering, 16 21-32 (2019)

    Relations between the microstructure, mechanical properties and machinability of as-cast 65Cu-35Zn brass with various amounts of Al (1.89, 3.65 and 4.72 wt%) and Si (0, 0.83, 1.87... [more]

    Relations between the microstructure, mechanical properties and machinability of as-cast 65Cu-35Zn brass with various amounts of Al (1.89, 3.65 and 4.72 wt%) and Si (0, 0.83, 1.87, 2.28 and 3.62 wt%) were investigated. Both Si and Al initially enhanced the ultimate tensile strength (UTS) and toughness of the brass samples, which led to an improvement in machinability due to a reduction in the main cutting force. A duplex brass with randomly oriented a plates in ß¿ matrix was found to have the best machinability among the other microstructures. It was found that besides the presence of brittle phases, such as ß¿ phase in the microstructure, the morphology and hardness of the phases involved had a significant infiuence on machinability.

    DOI 10.22068/ijmse.16.2.21
    Citations Scopus - 3
    2018 Rajabi Z, Doostmohammadi H, 'Effect of addition of tin on the microstructure and machinability of alpha-brass', MATERIALS SCIENCE AND TECHNOLOGY, 34 1218-1227 (2018)
    DOI 10.1080/02670836.2018.1435484
    Citations Scopus - 7Web of Science - 4
    2018 Yousefi M, Doostmohammadi H, 'Microstructure characterization and formation mechanism of functionally graded Al-TiAl3 insitu composite by liquid-solid interaction', JOURNAL OF ALLOYS AND COMPOUNDS, 766 721-728 (2018)
    DOI 10.1016/j.jallcom.2018.07.011
    Citations Scopus - 9Web of Science - 8
    2018 Bagherpour-Torghabeh H, Raiszadeh R, Doostmohammadi H, 'Removal of Bifilms from Al Melts by Stirring in Unbaffled and Baffled Crucibles', METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 49 3456-3469 (2018)
    DOI 10.1007/s11663-018-1414-5
    Citations Scopus - 2Web of Science - 2
    2017 Bagherpour-Torghabeh H, Raiszadeh R, Doostmohammadi H, 'Role of Mechanical Stirring of Al-Mg Melt in the Healing of Bifilm Defect', METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 48 3174-3184 (2017)
    DOI 10.1007/s11663-017-1067-9
    Citations Scopus - 7Web of Science - 7
    2017 Esfahani HB, Raiszadeh R, Doostmohammadi H, 'Weibull verification of reduced pressure test as a tool for assessing Al melt quality', INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 30 87-95 (2017)
    DOI 10.1080/13640461.2016.1244245
    Citations Scopus - 1Web of Science - 1
    2016 Esfahani HB, Raiszadeh R, Doostmohammadi H, 'The Effect of Strontium on the Strength of Layers of Double Oxide Film Defects', METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 47A 1331-1338 (2016)
    DOI 10.1007/s11661-015-3302-9
    Citations Scopus - 6Web of Science - 5
    2016 Esfahani HB, Doostmohammadi H, Raiszadeh R, 'Decrease in the rate of diffusion of hydrogen through layers of bifilm defects in Al melt in the presence of Sr', INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 29 179-185 (2016)
    DOI 10.1080/13640461.2015.1125645
    Citations Scopus - 3Web of Science - 3
    2016 Alirezaei M, Doostmohammadi H, 'Microstructure evolution in cast and equilibrium heat-treated CuZn30-(Si) alloys', INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 29 222-227 (2016)
    DOI 10.1080/13640461.2015.1126430
    Citations Scopus - 6Web of Science - 6
    2015 Doostmohammadi H, Moridshahi H, 'Effects of Si on the microstructure, ordering transformation and properties of the Cu60Zn40 alloy', JOURNAL OF ALLOYS AND COMPOUNDS, 640 401-407 (2015)
    DOI 10.1016/j.jallcom.2015.03.228
    Citations Scopus - 11Web of Science - 11
    2015 Khaleghifar F, Raiszadeh R, Doostmohammadi H, 'Effect of Ca on the Behavior of Double Oxide Film Defects in Commercially Pure Aluminum Melt', METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 46 1044-1051 (2015)
    DOI 10.1007/s11663-014-0240-7
    Citations Scopus - 12Web of Science - 10
    2014 Ahmadpour A, Raiszadeh R, Doostmohammadi H, 'Effect of stirring on behaviour of double oxide film defects in A356 aluminium melt', INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 27 221-229 (2014)
    DOI 10.1179/1743133613Y.0000000100
    Citations Scopus - 13Web of Science - 12
    2013 Amirinejhad S, Raiszadeh R, Doostmohammadi H, 'Study of double oxide film defect behaviour in liquid Al-Mg alloys', INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 26 330-338 (2013)
    DOI 10.1179/1743133613Y.0000000067
    Citations Scopus - 15Web of Science - 15
    2013 Amirinejhad S, Raiszadeh R, Doostmohammadi H, 'Calorimetric study of the oxidation of Al-Mg alloys for the prediction of healing of the double oxide film defect', JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 113 769-777 (2013)
    DOI 10.1007/s10973-012-2810-8
    Citations Scopus - 8Web of Science - 8
    2012 Nateghian M, Raiszadeh R, Doostmohammadi H, 'Behavior of Double-Oxide Film Defects in Al-0.05 wt pct Sr Alloy', METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 43 1540-1549 (2012)
    DOI 10.1007/s11663-012-9708-5
    Citations Scopus - 18Web of Science - 18
    2010 Doostmohammadi H, Andersson M, Karasev A, Jonsson PG, 'Use of Computational Thermodynamic Calculations in Studying the Slag/Steel Equilibrium during Vacuum Degassing', STEEL RESEARCH INTERNATIONAL, 81 31-39 (2010)
    DOI 10.1002/srin.200900112
    Citations Scopus - 5Web of Science - 5
    2010 Doostmohammadi H, Jonsson PG, Komenda J, Hagman S, 'Inclusion Characteristics of Bearing Steel in a Runner after Ingot Casting', STEEL RESEARCH INTERNATIONAL, 81 142-149 (2010)
    DOI 10.1002/srin.200900106
    Citations Scopus - 18Web of Science - 11
    2010 Doostmohammadi H, Karasev A, Jonsson PG, 'A Comparison of a Two-Dimensional and a Three-Dimensional Method for Inclusion Determinations in Tool Steel', STEEL RESEARCH INTERNATIONAL, 81 398-406 (2010)
    DOI 10.1002/srin.200900149
    Citations Scopus - 27Web of Science - 23
    Show 20 more journal articles

    Conference (1 outputs)

    Year Citation Altmetrics Link
    2009 Doostmohammadi H, Andersson M, Steneholm K, Jonsson P, 'Effect of EAF Slag Carryover on Slag-metal Equilibrium Calculations for Ladle Degassing Process', EPD CONGRESS 2009, PROCEEDINGS, San Francisco, CA (2009)
    Citations Scopus - 2Web of Science - 1
    Edit

    Research Supervision

    Number of supervisions

    Completed6
    Current1

    Current Supervision

    Commenced Level of Study Research Title Program Supervisor Type
    2020 PhD Interaction of Ferrous Burden Materials in the Cohesive Zone of the Ironmaking Blast Furnace under Hydrogen Operation PhD (Chemical Engineering), College of Engineering, Science and Environment, The University of Newcastle Co-Supervisor

    Past Supervision

    Year Level of Study Research Title Program Supervisor Type
    2019 PhD Fabrication of Leadless Free-cutting Brass and Evaluation of its Machinability Materials Engineering, University of Kerman Principal Supervisor
    2019 PhD A Study of Microstructure, Formation Mechanism and Mechanical Properties of Functionally Graded Al/Ti and Al/Cr In-situ Composites Materials Engineering, University of Kerman Sole Supervisor
    2018 PhD Study of the Binding between Noble Au-Pd Alloy and Ni-Cr Base Metal with Application in Narrow Overdenture Implants Dentistry, Kerman University of Medical Sciences Principal Supervisor
    2018 PhD A Study of the Effect of Mechanical Stirring on Behaviour of Bifilms in Liquid Al-Mg Alloys Materials Engineering, University of Kerman Consultant Supervisor
    2016 PhD Effect of Sr on the Strength of Bifilms in Liquid Aluminium Alloys Materials Engineering, University of Kerman Consultant Supervisor
    2016 PhD Investigating Reaction Kinetics of Direct Reduction of Iron Concentrate and Reactor Modeling of the Flash Reduction Process Chemical Engineering, University of Kerman Consultant Supervisor
    Edit

    Research Collaborations

    The map is a representation of a researchers co-authorship with collaborators across the globe. The map displays the number of publications against a country, where there is at least one co-author based in that country. Data is sourced from the University of Newcastle research publication management system (NURO) and may not fully represent the authors complete body of work.

    Country Count of Publications
    Iran, Islamic Republic of 20
    Sweden 7
    Edit

    Dr Hamid Doostmohammadi

    Position

    Research Associate
    School of Engineering
    College of Engineering, Science and Environment

    Contact Details

    Email hamid.doostmohammadi@newcastle.edu.au
    Phone (02) 4033 9301

    Office

    Room A422
    Building NIER A422
    Edit