Major Areas of Research Capability
Expertise
- Friction stir processing
- TIG, MIG and plasma welding (metal transfer and solidification)
- Casting (including semisolid casting) and solidification
- Extrusion (physical metallurgy)
- Tool/die materials (heat treatment & coating analysis)
- Galvanizing metallurgy & interfacial reaction
- Microstructure analysis
- Mechanical properties
Current Activities
- Thermomechanics (relationship between torque and rotation/forward speeds) of friction stir
- Material flow and microstructural evolution of (dissolving and non-dissolving second phases) cast alloys during friction stir
- Study on fatigue properties of friction stirred Al-Si-Mg cast alloy with various morphologies and distributions of Si particles
- Weld zone formation and mechanical properties of lap joints of Al and Mg alloys and Al to Ti/Fe alloy lap joints made using friction stir welding
- Improving deposit aspect ratio, dimension stability and reduced dilution for arc-based deposition
- Deformation and grain/precipitate evolution during extrusion on mechanical and surface properties of Al alloy extrusions
Researchers
- Associate Professor Zhan Chan and his students
- (A/P Chen collaborates with his colleagues, Dr Pasang, Dr Littlefair, Prof Neitzert in various ways)
Key Publications
- J.D. Robson, S. Cui & Z.W. Chen, “Incipient melting during friction stir processing of AZ91 magnesium castings”, Materials Science Engineering A, in press (available online 6 August 2010).
- T. Zhu, Z.W. Chen & W. Gao, “Effect of cooling condition during casting on fraction of b-Mg17Al12 in Mg-9Al-1Zn cast alloy”, Journal of Alloys and Compounds, 501 (2010) 291-296.
- D. Lohwasser & Z.W. Chen (edited), “Friction Stir Welding – from basics to applications”, 436 pages, Woodhead Publishing Ltd., Cambridge, UK, 2010 (ISBN: 978 1 84569 450 0).
- T. Zhu, Z.W. Chen & W. Gao, “Microstructure formation in partially melted zone during gas tungsten arc welding of AZ91 Mg cast alloy”, Materials Characterization, 59 (2008) 1550-1558.
- Z.W. Chen & S. Cui, “On the mechanism of banded structures in aluminium alloy friction stir welds”, Scripta Materialia, 58 (2008) 417-420.
- Z.W. Chen, T. Pasang & Y. Qi, “Shear layer and formation of nugget zone during friction stir welding of aluminium Alloy 5083-O”, Materials Science and Engineering A, 474 (2008) 312-316.
- T. Zhu, Z. W. Chen & W. Gao, “Incipient melting in partially melted zone during arc welding of AZ91D magnesium alloy”, Materials Science and Engineering A 416 (2006) 246-252.
- Z.W. Chen, "Formation and progression of die soldering during high pressure die casting”, Materials Science and Engineering A 379 (2005) 356-369.
- G. Winkelman, Z.W. Chen, D.H. StJohn & M.Z. Jahedi, “Morphological features of interfacial intermetallics and interfacial reaction rate in Al-11Si-2.5Cu-(0.15/0.60)Fe cast alloy/die Steel couples ", Journal of Materials Science 39 (2004) 519-528.
- Z.W. Chen “Skin solidification during high pressure die casting of Al-11Si-2Cu-1Fe alloy" Materials Science and Engineering A 348 (2003) 145-153.
- O. Kamiya, Z.W. Chen & Y. Kikuchi, "Microporosity formation in partially melted zone during GTA welding of high nitrogen austenitic stainless steels", Journal of Materials Science 37 (2002) 2475-2481.
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