Effect of sintering parameters on warm compacted iron-based material

来源期刊：中国有色金属学报(英文版)2003年第6期

论文作者：李元元 肖志瑜 倪东惠 夏伟 陈维平

文章页码：1333 - 1337

Key words：warm compaction; powder metallurgy; iron-based material; sintering; die wall lubrication

Abstract: Iron-based powder metallurgy material was prepared by warm compaction at 125℃ using a compacting pressure of 700MPa. Sintering temperature ranging from 1100℃ to 1300℃ and sintering time ranging from 40min to 80min were used to study the effects of sintering parameters on the compacts. Die wall lubrication polytetrafluoroethylene(PTFE) emulsion was also applied in combination with warm compaction in hope to increase the compact density and the mechanical properties of the sintered material. Green and sintered density, spring back effect and sinter shrinkage were measured. Mechanical properties of both as-sinter and heat treated samples were also measured. Results show that mechanical properties of the sintered compacts increase with the increase of sintering temperature and sintering time. Sample prepared by die wall lubricated warm compaction always shows higher density and mechanical properties.

基金信息：the National Natural Science Foundation of China
the Natural Science Foundation of Guangdong Province, China