| 锆合金准静态压缩变形行为研究 |
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| 引用本文： | 高莎莎,栾佰峰,周敏洪,刘庆. 锆合金准静态压缩变形行为研究[J]. 电子显微学报, 2011, 0(Z1) |
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| 作者姓名： | 高莎莎 栾佰峰 周敏洪 刘庆 |
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| 作者单位： | 重庆大学材料科学与工程学院; |
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| 基金项目： | 中央高校基本科研业务费专项资金资助项目(No.CDJZR10130008); 第四届国家大学生创新性实验项目(No.101061112) |
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| 摘 要： | 本文以热轧退火态锆合金板材为研究对象,选用两种压缩试验样品,其压缩方向分别平行于原板材的法向(ND样品)和原板材的横向(TD样品),利用Gleeble热模拟试验机和EBSD分析技术,对两种样品准静态压缩变形行为进行了研究。结果表明,热轧退火态锆合金板材的准静态力学性能具有明显的各向异性,TD样品的屈服强度和流变应力均低于ND样品。且TD样品在变形过程中产生了一定数量的{10 12}拉伸孪晶,使TD样品中的晶粒c轴均向TD方向发生了转动。通过对两个加载方向的柱面滑移的Schmid Factor(SF)进行计算发现,TD样品的柱面滑移的SF大于ND样品,说明当加载方向沿着TD方向时,柱面滑移更容易开启,使得TD样品的屈服强度低于ND样品。
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| 关 键 词： | 锆合金 压缩变形 EBSD |
Study of the deformation behavior for Zirconium alloys during quasi-static compression |
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| GAO Sha-sha,LUAN Bai-feng,ZHOU Min-hong,LIU Qing. Study of the deformation behavior for Zirconium alloys during quasi-static compression[J]. Journal of Chinese Electron Microscopy Society, 2011, 0(Z1) |
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| Authors: | GAO Sha-sha LUAN Bai-feng ZHOU Min-hong LIU Qing |
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| Affiliation: | GAO Sha-sha,LUAN Bai-feng,ZHOU Min-hong,LIU Qing(Colloge of Materials Science and Engineering,Chongqing University,Chongqing 400044,China) |
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| Abstract: | Quasi-static compression behaviors of zirconium alloys at room temperature were studied by Electron Backscattering Diffraction(EBSD) analysis.Two kinds of samples,which were cut from a hot-rolled and annealed sheet,were compressed with the compression axis paralleled to normal direction(ND sample) and transverse direction(TD sample) of the sheet,respectively.The results showed that during quasi-static compression,the yield strength and flow stress of the TD sample were lower than those of ND sample.Certain ... |
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| Keywords: | zirconium alloys compression deformation EBSD |
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