| 粉末GH4169 合金中的原始颗粒边界问题 |
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| 引用本文： | 赵丰.粉末GH4169 合金中的原始颗粒边界问题[J].宇航材料工艺,2012,42(1):92-94. |
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| 作者姓名： | 赵丰 |
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| 作者单位： | 1. 航天材料及工艺研究所,北京,100076
2. 中国三江航天集团设计所,武汉,430040 |
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| 摘 要： | 探讨了粉末GH4169高温合金中的原始颗粒边界的形成机理、其对合金组织性能的影响以及消除措施等。结果表明:粉末GH4169合金中原始颗粒边界组织主要由MC碳化物构成,而在粉末成型前进行预热处理可以有效抑制原始颗粒边界组织的生成,提高合金综合性能。
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| 关 键 词： | 粉末GH4169 原始颗粒边界 预热处理 |
Prior Particle Boundary Precipitation in Powder Metallurgy GH4169 |
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| Zhao Feng
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Yao Caogen
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Fan Kaichun
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Huang Guoji.Prior Particle Boundary Precipitation in Powder Metallurgy GH4169[J].Aerospace Materials & Technology,2012,42(1):92-94. |
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| Authors: | Zhao Feng Yao Caogen Fan Kaichun Huang Guoji |
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| Institution: | 1(1 Aerospace Research Institute of Materials & Processing Technology,Beijing 100076)(2 Designing Institute of China Sanjiang Space Group,Wuhan 430040) |
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| Abstract: | The mechanism of prior particle boundary(PPB) and its effects on microstructures and mechanical properties in powder metallurgy GH4169 are discussed,meanwhile the measures on minimizing PPB precipitation has been analyzed.The result indicate that MC carbide is the major constituent of previous particle boundary,and the powder metallurgy GH4169 shows better property with powder pre-heat treatment. |
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| Keywords: | Powder metallurgy GH4169 Prior particle boundary Pre-heat treatment |
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