2025/1/13 Professor Sindo Kou演講

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上層分類：系所公告

分類：演講

建立於 2024-12-27, 週五 17:12

最近更新於 2024-12-27, 週五 17:25

發佈於：2024-12-27, 週五 17:18

點擊數：2187

演講者：Professor Sindo Kou

演講題目：Grain Refining and Cracking during Solidification

演講時間： 1/13/2025  11:00-12:00

演講地點：工綜館228室

演講摘要：

Grain refining is of practical interest in casting, welding and additive manufacturing. Despite extensive studies for over 50 years, it is still not very clear why grain refining (i.e., decreasing the grain size) can effectively decrease the susceptibility to cracking during solidification. It is even more puzzling why over grain refining (i.e., making grains too small in size) can reverse the trend and significantly increase the cracking susceptibility. To help understand why, the present study included the continuity of the interdendritic liquid and solute poisoning into consideration. The present study also attempted to estimate how much the cracking susceptibility can be decreased by grain refining. To do this, a simple index for the cracking susceptibility was modified to include the extent of grain refining. The validity of the estimation was checked against cracking susceptibility tests in casting and welding.

關於講者：

服務單位：Department of Materials Science and Engineering, University of Wisconsin, Madison

職稱：Professor (Emeritus since Summer 2024)

學經歷：

• BS in Chemical Engineering, National Taiwan University, 1971  

• PhD in Materials Science and Engineering, Massachusetts Institute of Technology, 1978

• University of Wisconsin: Professor (1985-2024); Department Chair (2000-2004)

• Books: Welding Metallurgy (cited 6,000 times), 3rd edition (2021), John Wiley; 

Transport Phenomena and Materials Processing, John Wiley, 1996  

• Fellows: American Welding Society; ASM International 

• American Welding Society (AWS): Comfort Adams Lecture (2012); James Lincoln Gold Medal (2016); William Irrgang Memorial Award (2018); 15 best paper awards

• International Institute of Welding (IIW): Yoshiaki Arata Award (2017)

• The Minerals, Metals & Materials Society (TMS): Bruce Chalmers Award (2013); Magnesium Technology Best Paper Award (2017)

• Iron and Steel Society of AIME: John Chipman Award (1980) 

• University of Wisconsin: Chancellor’s Award for Distinguished Teaching (1999)

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