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全片层BT18Y钛合金在α+β相区固溶时的显微组织演化
杨义; 徐锋; 黄爱军; 李阁平
2005
Source Publication金属学报
ISSN0412-1961
Volume41.0Issue:007Pages:713-720
Abstract对BT18Y(Ti-6.9Al-3.6Zr-2.7Sn-0.7Mo-0.6Nb-0.21Si)钛合金进行了一系列的固溶处理,利用OM,SEM和TEM观察了在α+β两相区固溶后的显微组织形貌,发现连续的晶界α相发生了球化,一部分晶内初生α片端部具有“叉形”结构.分析了球化的原因和“叉形”结构的形成机理:晶界α相表面曲率不同造成的溶质浓度差异而引起的扩散是晶界相球化的根本原因,不同晶界α片的交接对球化有一定的贡献;晶内初生α片的各个部位与β相之间的相界面结构和界面能的不同是造成α+β相区固溶时α片端“叉形”形貌的主要原因,α片端面与β相之间为高界面能易移动的非共格界面,在固溶时β相容易在该处向α片内生长形成β片,与之对应的α片便出现了“叉形”结构.
KeywordBT18Y钛合金 晶界α相 球化 晶内α片 “叉形”形貌
Indexed ByCSCD
Language中文
CSCD IDCSCD:2107231
Citation statistics
Cited Times:17[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/144859
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
杨义,徐锋,黄爱军,等. 全片层BT18Y钛合金在α+β相区固溶时的显微组织演化[J]. 金属学报,2005,41.0(007):713-720.
APA 杨义,徐锋,黄爱军,&李阁平.(2005).全片层BT18Y钛合金在α+β相区固溶时的显微组织演化.金属学报,41.0(007),713-720.
MLA 杨义,et al."全片层BT18Y钛合金在α+β相区固溶时的显微组织演化".金属学报 41.0.007(2005):713-720.
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