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体心立方金属铌中小角度晶界分解的原位电子显微学表征
Alternative TitleStudy on the elimination of low-angle grain boundaries in body-centered cubic niobium
江彬彬; 杜奎; 叶恒强
2019
Source Publication电子显微学报
ISSN1000-6281
Volume38.0Issue:002Pages:102-106
Abstract本文利用像差校正透射电子显微镜研究了体心立方金属铌中的小角度晶界,并结合原位拉伸实验技术对其在拉伸加载过程中的变形行为进行观察。结果表明,在铌金属中的小角度晶界为非对称倾转晶界,由1/2-111和1/211-1两种类型的全位错构成。加载过程中该小角度晶界上的位错向外滑移,并最终导致了小角度晶界的分解消失。
Other AbstractLow-angle grain boundaries in the body-centered cubic structured Nb and the elimination of these grain boundaries were investigated by using in situ aberration-corrected electron microscopy. It is found that these grain boundaries are asymmetrical tilt low-angle grain boundaries, which consist of 1/2-111 and 1/211-1 dislocations. The elimination of low-angle grain boundaries can take place due to the glide of these dislocations away from the boundaries under tensile loading.
Keyword小角度晶界 体心立方金属 原位电子显微学 像差校正透射电子显微学
Indexed ByCSCD
Language中文
CSCD IDCSCD:6495508
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/150806
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
江彬彬,杜奎,叶恒强. 体心立方金属铌中小角度晶界分解的原位电子显微学表征[J]. 电子显微学报,2019,38.0(002):102-106.
APA 江彬彬,杜奎,&叶恒强.(2019).体心立方金属铌中小角度晶界分解的原位电子显微学表征.电子显微学报,38.0(002),102-106.
MLA 江彬彬,et al."体心立方金属铌中小角度晶界分解的原位电子显微学表征".电子显微学报 38.0.002(2019):102-106.
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