| 三代粉末高温合金的特征及发展 |
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| 引用本文： | 程茜,董建新,张麦仓.三代粉末高温合金的特征及发展[J].世界钢铁,2011,11(5). |
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| 作者姓名： | 程茜 董建新 张麦仓 |
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| 作者单位： | 北京科技大学,北京,100083 |
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| 摘 要： | 粉末高温合金在高温下表现出一系列优点,成为高推重比航空发动机涡轮盘等关键部件的首选材料。概述了三代粉末高温合金的发展历程和性能特点;介绍了其生产工艺流程以及热处理过程中固溶温度、冷却速度、时效对组织的影响;从析出相的析出规律(主要讨论了γ'相、碳化物、TCP相)和γ/γ'错配度方面分析了合金成分改变带来的影响,提出成分优化设计的趋势;探讨了粉末高温合金今后的发展方向,为进一步开展粉末高温合金的研究提供一定的理论依据。
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| 关 键 词： | 粉末高温合金 生产工艺 成分优化 发展方向 |
Characteristics and development of three generations of powder metallurgy superalloys |
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| Authors: | CHENG Xi DONG Jianxin ZHANG Maicang |
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| Affiliation: | CHENG Xi,DONG Jianxin,ZHANG Maicang (University of Science and Technology Beijing,Beijing 100083,China) |
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| Abstract: | Powder metallurgy superalloys show a series of advantages at high temperature,and they are the preferable materials for the critical components in aircraft industry such as turbine disk with high thrust-weight ratio in engine.The development in history,performance and features of three generations of powder metallurgy superalloys are summarized in this paper.The production process and the impact of solution temperature,cooling rate,ageing during heat treatment on microstructure are introduced.From the law o... |
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| Keywords: | powder metallurgy superalloy production process composition optimization development direction |
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