| 非晶合金宇航服役热环境下蠕变行为研究 |
| |
| 引用本文： | 秦怀德,高航,冯晨,马赟,汪洋,李岩. 非晶合金宇航服役热环境下蠕变行为研究[J]. 有色金属工程, 2021, 0(3): 1-7 |
| |
| 作者姓名： | 秦怀德 高航 冯晨 马赟 汪洋 李岩 |
| |
| 作者单位： | 中国航天宇航元器件工程中心,中国电子科技集团公司第四十六研究所,中国电子技术标准化研究院;中国电子技术标准化研究院,中国航天宇航元器件工程中心,中国航天宇航元器件工程中心,中国航天宇航元器件工程中心 |
| |
| 基金项目： | 国家自然科学基金项目（51301196） |
| |
| 摘 要： | 通过宏观尺度蠕变实验,在宇航服役环境范围内,对锆基非晶合金蠕变行为进行了研究.结果表明,在200℃ 时,非晶合金未发生显著的压缩蠕变,其长期变形比率与自由体积的增值数值变化存在表观一致,说明自由体积作为孕育形成剪切带的初始结构单元,在非晶合金蠕变变形中具有重要作用.在300℃时,非晶合金在低于屈服强度和玻璃转变温度的条...
|
| 关 键 词： | 非晶合金 蠕变 自由体积 稳态蠕变速率 |
| 收稿时间： | 2020-07-12 |
| 修稿时间： | 2020-10-08 |
Research on creep behaviors of metallic glass at space thermal environment |
| |
| Qin Huaide,Gao Hang,Fengchen,Ma Yun,Wang Yang and Li Yan. Research on creep behaviors of metallic glass at space thermal environment[J]. Nonferrous Metals Engineering, 2021, 0(3): 1-7 |
| |
| Authors: | Qin Huaide Gao Hang Fengchen Ma Yun Wang Yang Li Yan |
| |
| Affiliation: | China Aerospace Components Engineering Center,China Academy of Space Technology,The th Institute of China Electronics Technology Group Corporation,China Electronics Standardization Institute,China Aerospace Components Engineering Center,China Academy of Space Technology,China Aerospace Components Engineering Center,China Academy of Space Technology,China Aerospace Components Engineering Center,China Academy of Space Technology |
| |
| Abstract: | The creep behaviors of zirconium base(Zr-based)metallic glass proposed serving in the space environment were studied by macro-scale creep test method.The results showed that no significant creep in compression indicated in 200℃,and the long-term deformation ratio indicated the same value to its excess free volume,which indicates that free volume plays an important role in the creep deformation of amorphous alloys as the initial structural unit for the formation of shear bands.In below the yield strength and glass transition temperature of Zr-based the metallic glass,respectively,the compressive and tensile creep behavior significantly changed in 300℃.In this study,the experimental results of Zr-based metallic in creep further define the serving thermal and mechanical limits in space.It′s service temperature should not exceed 200℃and the load can′t exceed 1000 MPa. |
| |
| Keywords: | metallic glass creep free volume steady creep rate |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《有色金属工程》浏览原始摘要信息 |
|
点击此处可从《有色金属工程》下载免费的PDF全文 |
|
