热处理对烧结Fe-Cr-C-Ni-W合金组织的影响
发布时间：2018-12-11 08:17
【摘要】：采用粉末冶金法制备了Fe-Cr-C-Ni-W合金,研究并分析了热处理工艺中去稳温度、去稳时间和回火温度对合金显微组织的影响。结果表明,热处理态合金组织为少量马氏体+碳化物(初生碳化物和二次碳化物)+残余奥氏体;在900和950℃条件下,随保温时间的延长二次碳化物析出量分别增加和减少,硬度值呈先增大后减小趋势。1000℃条件下二次碳化物量最少,硬度值最低。此合金的最佳热处理工艺为:950℃×1 h+200℃×1 h,硬度为58.4 HRC。
[Abstract]:Fe-Cr-C-Ni-W alloy was prepared by powder metallurgy method. The effects of unsteady temperature, unsteady time and tempering temperature on microstructure of the alloy were studied and analyzed. The results show that the microstructure of the heat-treated alloy is a small amount of martensitic carbides (primary carbides and secondary carbides) residual austenite. At 900 鈩，
本文编号：2372212
[Abstract]:Fe-Cr-C-Ni-W alloy was prepared by powder metallurgy method. The effects of unsteady temperature, unsteady time and tempering temperature on microstructure of the alloy were studied and analyzed. The results show that the microstructure of the heat-treated alloy is a small amount of martensitic carbides (primary carbides and secondary carbides) residual austenite. At 900 鈩，
本文编号：2372212
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