| 低温退火温度对Laves相Cr2Nb固相热反应合成的影响 |
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| 引用本文： | 鲁世强,肖璇,李鑫,董显娟,王克鲁,贺跃辉.低温退火温度对Laves相Cr2Nb固相热反应合成的影响[J].稀有金属材料与工程,2006,35(10):1535-1538. |
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| 作者姓名： | 鲁世强 肖璇 李鑫 董显娟 王克鲁 贺跃辉 |
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| 作者单位： | 1. 南昌航空工业学院,江西,南昌,330034
2. 中南大学粉末冶金国家重点实验室,湖南,长沙,410083 |
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| 基金项目： | 国家自然科学基金;航空基础科学基金;江西省自然科学基金;江西省教育厅科研项目;江西省材料科学与工程中心资助项目 |
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| 摘 要： | 研究了退火时间为3h时，退火温度对Cr-Nb机械合金化（MA）粉的Laves相Cr2Nb固相热反应合成的影响规律，获得了30hMA粉在退火时间为3h时能使Laves相Cr2Nb固相热反应合成充分进行的最低退火温度。优化出的cr2Nb固相热反应合成低温退火温度，可为通过MA＋热压（或烧结）工艺路线制备具有微／纳米晶结构的高强高韧Cr2Nb合金或Cr2Nb基复合材料提供理论指导。
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| 关 键 词： | 机械合金化 Laves相Cr2Nb 合成 低温退火 工艺优化 |
| 文章编号： | 1002-185X(2006)10-1535-04 |
| 收稿时间： | 2005-09-26 |
| 修稿时间： | 2006-04-18 |
Effects of Annealing Temperature on Laves Phase Cr2Nb Synthesizing by Solid Phase Thermal Reaction |
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| Lu Shiqiang,Xiao Xuan,Li Xin,Dong Xianjuan,Wang Kelu,He Yuehui.Effects of Annealing Temperature on Laves Phase Cr2Nb Synthesizing by Solid Phase Thermal Reaction[J].Rare Metal Materials and Engineering,2006,35(10):1535-1538. |
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| Authors: | Lu Shiqiang Xiao Xuan Li Xin Dong Xianjuan Wang Kelu He Yuehui |
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| Affiliation: | 1. Nanchang Institute of Aeronautical Technology, Nanchang 330034, China;2. State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China |
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| Abstract: | Using Cr-Nb MA powders ball milled for 30 h then annealed for 3 h, the effects of annealing temperature on Laves phase Cr2Nb synthesizing by solid phase thermal reaction have been investigated. The lowest annealing temperature of the powder for full synthesizing of Laves phase Cr2Nb was obtained. The optimized low temperature annealing parameters for Laves phase Cr2Nb synthesizing by solid phase thermal reaction can theoretically provide guidance for preparing both high strength and high tough Cr2Nb alloy or Cr2Nb-based composite with micro- / nano-grains by a process of mechanical alloying followed by a hot pressing or sintering. |
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| Keywords: | mechanical alloying(MA) Laves phase Cr2Nb synthesis low temperature annealing process optimizing |
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