Ehsan Ghassemali

Forskare material och tillverkning - gjutning

Avdelningen för Material och tillverkning , Tekniska Högskolan i Jönköping AB

PhD


Since almost ten years ago, Dr. Ghassemali's main research focus is generally on the relationship between microstructure and mechanical (and thermal) properties of metallic alloys. More specifically, he emphasizes on analytical electron microscopy to investigate (thermo)mechanical behavior of various type of alloys in complex conditions. To complete the chain of knowledge transfer into real applications, his final goal in each research is to bridge the experimental knowledge and finite element simulation, for process optimization as well as material properties prediction.

Particular focus is on conducting 2D and 3D electron-microscopy research and in-situ investigation of the mechanical behavior of cast alloys using Electron Backscattered Diffraction (EBSD) technique. A better understanding of how industrial alloys respond to external stimuli can create strategies for developing materials with desired properties from the micro-scale up. Specifically, material properties during the manufacturing process are studied, including crack initiation/propagation and failure analysis in micro-scale. The research is conducted in close cooperation with European industry.

Apart from those, areas of interest for Dr. Ghassemali also include high-entropy alloys, macro/micro-forming processes, testing and characterization techniques, grain refinement techniques, heat-treatment, modern physical and mechanical metallurgy, molecular dynamics, and finite element simulation.

More info: http://ghassemali.weebly.com/

Antologibidrag

Ghassemali, E. Song, X. Zarinejad, M. Atsushi, D. Tan, M. (2014). Bulk Metal Forming Processes in Manufacturing. Berlin: Springer Berlin/Heidelberg More information

Artikel

Ghatei Kalashami, A. Kermanpur, A. Ghassemali, E. Najafizadeh, A. Mazaheri, Y. (2017). The effect of Nb on texture evolutions of the ultrafine-grained dual-phase steels fabricated by cold rolling and intercritical annealing. : Elsevier More information
Ghassemali, E. Sonkusare, R. Biswas, K. Gurao, N. (2017). In-situ study of crack initiation and propagation in a dual phase AlCoCrFeNi high entropy alloy. : Elsevier More information
Hernando, J. Ghassemali, E. Diószegi, A. (2017). The morphological evolution of primary austenite during isothermal coarsening. : Elsevier More information
Kasvayee, K. Ghassemali, E. Salomonsson, K. Sujakhu, S. Castagne, S. Jarfors, A. (2017). Strain localization and crack formation effects on stress-strain response of ductile iron. : Elsevier More information
Riestra, M. Ghassemali, E. Bogdanoff, T. Seifeddine, S. (2017). Interactive effects of grain refinement, eutectic modification and solidification rate on tensile properties of Al-10Si alloy. : Elsevier More information
Rastegari, H. Kermanpur, A. Najafizadeh, A. Somani, M. Porter, D. Ghassemali, E. Jarfors, A. (2016). Determination of processing maps for the warm working of vanadium microalloyed eutectoid steels. : Elsevier More information
Ghatei Kalashami, A. Kermanpur, A. Ghassemali, E. Najafizadeh, A. Mazaheri, Y. (2016). Correlation of microstructure and strain hardening behavior in the ultrafine-grained Nb-bearing dual phase steels. : Elsevier More information
Zamani, M. Seifeddine, S. Ghassemali, E. (2016). Effect of cooling rate and eutectic modification on texture and grain structure of Al-Si-Cu-Mg die cast alloy. Milano: Associazione Italiana di Metallurgia More information
Kasvayee, K. Salomonsson, K. Ghassemali, E. Jarfors, A. (2016). Microstructural strain distribution in ductile iron. More information
Matsushita, T. Ghassemali, E. Saro, A. Elmquist, L. Jarfors, A. (2015). On Thermal Expansion and Density of CGI and SGI Cast Irons. More information
Ghassemali, E. Tan, M. Wahb, C. Lim, S. Jarfors, A. (2015). Effect of cold-work on the Hall–Petch breakdown in copper based micro-components. More information
Ghassemali, E. Tan, M. Lim, S. Wah, C. Jarfors, A. (2014). Experimental and Simulation of Friction Effects in an Open-Die Microforging/Extrusion Process. : ASME Press More information
Ghassemali, E. Jarfors, A. Tan, M. Lim, S. (2013). On the microstructure of micro-pins manufactured by a novel progressive microforming process. More information
Ghassemali, E. Tan, M. Jarfors, A. Lim, S. (2013). Optimization of axisymmetric open-die micro-forging/extrusion processes: An upper bound approach. More information
Ghassemali, E. Tan, M. Chua, B. Jarfors, A. Lim, S. (2013). Grain size and workpiece dimension effects on material flow in an open-die micro-forging/extrusion process. : Elsevier More information
Ghassemali, E. Tan, M. Jarfors, A. Lim, S. (2013). Progressive microforming process. : Springer Berlin/Heidelberg More information
Ghassemali, E. Kermanpur, A. Najafizadeh, A. (2010). Microstructural Evolution in a Low Carbon Steel During Cold Rolling and Subsequent Annealing. : American Scientific Publishers More information
Kermanpur, A. Ghassemali, E. Salemizadeh, S. (2008). Synthesis and characterisation of microporous titania membranes by dip-coating of anodised alumina substrates using sol–gel method. : Elsevier More information
Dini, H. Svoboda, A. Andersson, N. Ghassemali, E. Lindgren, L. Jarfors, A. (). Dislocation Density Model for Flow Stress of AZ91D Magnesium Alloy-Effect of Temperature and Microstructure. More information

Konferensbidrag

Keller, C. Wass, S. Zetterlind, M. Ghassemali, E. Seifeddine, S. (2017). Teacher roles in a blended learning materials engineering master program. More information
Ghassemali, E. Jarfors, A. Tan, M. Chua, B. (2016). Microstructure versus substructure size effect. : American Institute of Physics (AIP) More information
Dini, H. Andersson, N. Ghassemali, E. Jarfors, A. (2015). Microstructural Scale Effects on Thermal Expansion Behaviour of Cast AZ91D. Hoboken: John Wiley & Sons More information
Ghasemi, R. Elmquist, L. Ghassemali, E. Jarfors, A. (2015). Effect of interaction between lamellar graphite and cat-fines on tribological behaviour of cast iron under abrasion. More information
Kasvayee, K. Ghassemali, E. Jarfors, A. (2015). Micro-Crack Initiation in High-Silicon Cast Iron during Tension Loading. : John Wiley & Sons More information
Ghassemali, E. Tan, M. Chua, B. Lim, S. Jarfors, A. (2014). Friction effects during open-die micro-forging/extrusion processes. : Elsevier More information
Kasvayee, K. Elmquist, L. Jarfors, A. Ghassemali, E. (2014). Development of a pattern making method for strain measurement on microstructural level in ferritic cast iron. More information
Ghassemali, E. Jarfors, A. Tan, M. Lim, S. (2011). Dead-zone formation and micro-pin properties in progressive microforming process. Weinheim: Wiley-VCH Verlagsgesellschaft More information

Rapport

Kasvayee, K. Ghassemali, E. Salomonsson, K. Jarfors, A. (2015). Microstructural strain localization and crack evolution in ductile iron. JTH research report. More information
Kasvayee, K. Ghassemali, E. Salomonsson, K. Jarfors, A. (2015). Microstructural strain distribution in ductile iron; Comparison between finite element simulation and digital image correlation measurements. JTH research report. More information

Övrigt

Kasvayee, K. Ghassemali, E. Salomonsson, K. Sujakhu, S. Castagne, S. Jarfors, A. (). Microstructural strain mapping during in-situ cyclic testing of ductile iron. More information
Kasvayee, K. Ghassemali, E. Svensson, I. Olofsson, J. Jarfors, A. (). Characterization and modeling of the mechanical behavior of high silicon ductile iron. More information
Bjurenstedt, A. Ghassemali, E. Seifeddine, S. Dahle, A. (). The effect of Fe-rich intermetallics on crack initiation in cast aluminium. More information






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