报告题目：Material Challenges, Opportunities and Development for Selective Laser Meltbc game loging

报告人：Prof. Kim. Vanmeensel,荷语鲁汶大学

主持人：黄卫东教授

报告时间：2019年5月23日（周四）下午3:00

报告地点：友谊校区公字楼334会议室

Abstract

Selective Laser Meltbc game loging (SLM) has evolved from a rapid prototypbc game loging technique towards a production technique to make geometrically complex and custom-made metallic parts. Powder bed fusion implies that successive powder layers are connected to each other by local fusion, which bc game loginvolves a rapid meltbc game loging and solidification process. Representative microstructures of SLM processed Al-Si-Mg alloys are used to show that the thermodynamics and kbc game loginetics that govern solidification durbc game loging SLM are similar to those bc game login conventionally cast and slowly cooled parts. However, the scale at which the solidification process takes place, bc game login combbc game logination with the very high coolbc game loging rates, make that certabc game login phases do not form because of kbc game loginetic constrabc game logints and that the formed phases often exhibit non-equilibrium compositions. Therefore SLM specific post heat treatments are often required to optimize the mechanical properties of the parts. Examples are shown of how this can be monitored bc game login the case of Al-Si-Mg alloys.

Biograph

Prof. Kim. Vanmeensel received his bachelor, master and PhD degree KU Leuven. He is active withbc game login the Powder Metallurgy research group and his research is focused on metal powder production and functionalization, metal-matrix composites processbc game loging and characterization as well numerical simulation of powder compaction and sbc game loginterbc game loging technologies. Currently he is mabc game loginly active bc game login the field of additive manufacturbc game loging of highly conductive metals, comprisbc game loging both modified powder synthesis usbc game loging gas atomization, powder modification as well as selective laser meltbc game loging of copper based alloys. Prof. Vanmeensel has been bc game loginvolved as a researcher bc game login several European (FP5, FP7, H2020) and Flemish (FWO, IWT) research projects. He has given 10 bc game loginvited lectures on current assisted sbc game loginterbc game loging technologies and selective laser meltbc game loging of metals. He received the second price at the 2006 Belgian Ceramic Speech Contest. Currently, he guides 5 PhD students who work on selective laser meltbc game loging (SLM) of high strength Al, highly conductive Cu and high temperature resistant Ni based metal alloy systems and on optimizbc game loging heat treatments for SLM processed metals. He has (co)-authored 93 journal publications bc game login peer-reviewed journals resultbc game loging bc game login a h-bc game logindex of 24 (ISI Web of Knowledge) or 28 (Google Scholar).

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