Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 18    No. 2    April 2008

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Deformation behavior and strength evolution of MIM compacts during thermal debinding
LIU Xiang-quan(刘相权), LI Yi-min(李益民), YUE Jian-ling(岳建岭), LUO Feng-hua(罗风华)

State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China

Abstract:Effects of the debinding atmosphere, powder characteristic, solid loading and heating rate on the compact deformation were investigated. The compact strength after thermal debinding was measured by bending mode. The experimental results indicate that the vacuum atmosphere is beneficial to improving the deformation resistance compared with nitrogen atmosphere. Small particle size, irregular particle shape and high solid loading are suitable for decreasing the deformation defects. Besides, too fast heating rate may induce deformation defects. It is also indicated that effect of the factors for the deformation defects is different in different debinding stages. The strength evolution of the compacts during thermal debinding was also discussed.


Key words: MIM(metal injection molding); thermal debinding; deformation resistance; strength evolution

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
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