Optimised sintering route for cold work tool steels
Optimised sintering route for cold work tool steels
复制标题
冷作工具钢的优化烧结路线
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
W. Theisen
中科院分区：
文献类型：
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作者：
S. Weber;W. Theisen
两种不同的粉末冶金冷作工具钢，D 7和镍合金D 7的修改，压实到全密度，利用超固相线液相烧结在真空和氮气气氛中。对耐磨金属基复合材料的制备进行了实验研究。这些材料表现出比铸造材料更高的耐久性，并且越来越多地用于矿物和采矿业。在本文中，烧结表现出更符合成本效益的处理这些材料相比，热等静压。实验得到了Thermo-Calc热力学计算的支持。真空和氮气气氛下的烧结行为的显着差异进行了检测。烧结温度低至1210°C即可获得全密度。
Two different powder metallurgy cold work tool steels, D7 and a nickel alloyed D7 modification, were compacted to full density by utilisation of super solidus liquid phase sintering in vacuum and nitrogen atmospheres. The experiments were carried out with respect to the fabrication of wear resistant metal matrix composites. These materials exhibit a higher durability than cast materials and are increasingly used in the mineral and mining industry. In the present paper, sintering exhibits a more cost effective processing of these materials compared with hot isostatic pressing. The experiments were supported by thermodynamic calculations with Thermo-Calc. Significant differences of the sintering behaviour in vacuum and nitrogen atmospheres were detected. Full density could be obtained at a sintering temperature as low as 1210°C.