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| 一种高硅镍铜合金高温热压缩变形的研究 | |
| 引用本文： | 于洋,周成,刘高远,陶春虎,刘德林.一种高硅镍铜合金高温热压缩变形的研究[J].航空材料学报,2008,28(5). |
| 作者姓名： | 于洋 周成 刘高远 陶春虎 刘德林 |
| 作者单位： | 1. 北京航空材料研究院,中国航空工业失效分析中心,北京,10095;北京科技大学材料科学与工程学院,北京,10083 2. 北京科技大学材料科学与工程学院,北京,10083 3. 北京航空材料研究院,中国航空工业失效分析中心,北京,10095 |
| 摘 要： | 利用Gleeble-1500热模拟材料实验机,对高硅镍铜合金铸态试样分别在温度为T1,T2,T3,T4,应变速率为S1,S2,S3,S4,S5时进行压缩变形.对该合金的高温塑性变形行为和热压缩后的组织演变规律进行了研究.分析了流变应力与应变速率和温度的关系,计算出了应力指数和变形激活能.结果表明,流变应力随应变速率的增加而增加,随温度的升高而减小,并且该合金在高温变形条件下发生动态再结晶. |
| 关 键 词： | 镍铜合金 热压缩 流变应力 变形激活能 |
Research on Hot Compression Deformation of Ni-Copper Alloy with high content of Si |
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| YU Yang,ZHOU Cheng,LIU Gao-yuan,TAO Chun-hu,LIU De-lin.Research on Hot Compression Deformation of Ni-Copper Alloy with high content of Si[J].Journal of Aeronautical Materials,2008,28(5). | |
| Authors: | YU Yang ZHOU Cheng LIU Gao-yuan TAO Chun-hu LIU De-lin |
| Institution: | YU Yang1,2,ZHOU Cheng2,LIU Gao-yuan1,TAO Chun-hu1,LIU De-lin1 (1.Failure Analysis Center of Aviation Industries of China,Beijing Institute of Aeronautical Materials,Beijing 10095,China,2.School of Material Science , Engineering,University of Science , Technology Beijing,Beijing 10083,China) |
| Abstract: | Hot compression deformation simulation of Ni-Copper alloy was investigated on Gleeble-1500 hot simulation at different deformation temperatures(fromT1toT4) and various strain rates(S1,S2,S3,S4,andS5).The microstructure of the Ni-Copper alloy after deformation was also studied.The relationship between flow stress and deformation temperature were analyzed,and the deformation activation energy and stress exponent were calculated.The results show that the peak flow stress becomes larger with the strain rate inc... |
| Keywords: | Ni-Copper alloy hot compression deformation flow stress deformation activation energy |
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