Institutional Repository of Coll Mat Sci & Engn
Effect of long-time aging on precipitated phase and tensile properties of GH625 alloy | |
Li, Ya-Min![]() ![]() ![]() | |
2019-02-01 | |
发表期刊 | Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
![]() |
ISSN | 10040609 |
卷号 | 29期号:2页码:262-269 |
摘要 | The effect of long-time aging on the precipitated phase and tensile properties of GH625 alloy was investigated by scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffractiometry and tensile tests. Using heat insulation method and Rietveld full spectrum fitting method, the volume fractions of the main precipitated phases of GH625 alloy during thermal aging were quantitatively analyzed. The relationship between volume fraction of precipitated phases and tensile properties was further analyzed. The results show that the γ phase in the microstructure of GH625 alloy transforms into γ' phase, γ″ phase and δ phase in sequence during long-time aging at 720.With aging time prolonging, the volume fractions of γ″ phase and δ phase increase, and the volume fraction of the γ' phase increases firstly and then decreases. The tensile properties of GH625 alloy are significantly affected by the precipitated phases. The γ' phase and γ″ phase can improve the strength of the alloy, but the γ″ phase with large size is not good to the plasticity of the alloy. The precipitation and growth of the large amount of δ phase decrease the strength of the alloy, but increase the yield ratio, while the plasticity of the alloy decreases greatly. © 2019, Science Press. All right reserved. |
关键词 | Chemical analysis High resolution transmission electron microscopy Plasticity Precipitation (chemical) Scanning electron microscopy Tensile properties Tensile testing Thermal aging Thermal insulation Volume fraction Fitting method Full spectrum GH625 alloys Heat insulation method Large amounts Long-time aging Precipitated phase Yield ratios |
DOI | 10.19476/j.ysxb.1004.0609.2019.02.06 |
收录类别 | EI |
语种 | 中文 |
出版者 | Central South University of Technology |
EI入藏号 | 20192807167917 |
EI主题词 | Metal testing |
EI分类号 | 413.2 Heat Insulating Materials - 641.1 Thermodynamics - 741.3 Optical Devices and Systems - 802.3 Chemical Operations - 951 Materials Science |
来源库 | Compendex |
分类代码 | 413.2 Heat Insulating Materials - 641.1 Thermodynamics - 741.3 Optical Devices and Systems - 802.3 Chemical Operations - 951 Materials Science |
引用统计 | 无
|
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/113965 |
专题 | 材料科学与工程学院 国际教育学院 |
作者单位 | State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China |
第一作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Li, Ya-Min,Zhu, Rui-Ming,Liu, Hong-Jun,et al. Effect of long-time aging on precipitated phase and tensile properties of GH625 alloy[J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,2019,29(2):262-269. |
APA | Li, Ya-Min,Zhu, Rui-Ming,Liu, Hong-Jun,&Jia, Zhi.(2019).Effect of long-time aging on precipitated phase and tensile properties of GH625 alloy.Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,29(2),262-269. |
MLA | Li, Ya-Min,et al."Effect of long-time aging on precipitated phase and tensile properties of GH625 alloy".Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals 29.2(2019):262-269. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论