金属学报  1995, Vol. 31 Issue (6): 241-247

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Ti-H合金共析转变产物的形态和结构

康强;张彩碚;赖祖涵;宁小光

中国科学院金属研究所固体原子像开放研究实验室;东北大学

MORPHOLOGY AND HIGH RESOLUTION IMAGE OF EUTECTOID TRANSFORMATION PRODUCTS OF Ti-H ALLOYS

KANG Qiang;ZHANG Caibei;LAI Zuhan;NING Xiaoguang(Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015)(Department of Materials Science; College of Science; Northeastern University;Shenyang 110006)

康强;张彩碚;赖祖涵;宁小光. Ti-H合金共析转变产物的形态和结构[J]. 金属学报, 1995, 31(6): 241-247.
, , , . MORPHOLOGY AND HIGH RESOLUTION IMAGE OF EUTECTOID TRANSFORMATION PRODUCTS OF Ti-H ALLOYS[J]. Acta Metall Sin, 1995, 31(6): 241-247.

摘要 参考文献 相关文章 Metrics 全文: PDF(596 KB)   摘要: 用ＴＥＭ观察了工业纯α－Ｔｉ板渗氢０．２—１．５３ｗｔ－％后析出的氢化物的形态和结构．结果表明：β－Ｔｉ（Ｈ）共析转变产物是δ氢化物和α－Ｔｉ，不同形状的δ氢化物和α－Ｔｉ微晶组成了微晶区；γ氢化物直接从α－Ｔｉ（Ｈ）中析出．用高分辨电子显微术（ＨＲＴＥＭ）观察了β－Ｔｉ（Ｈ）共析转变形成的微晶区的精细结构，表明δ氢化物周围可以存在满足δ氢化物和α－Ｔｉ两种取向关系的１０种α－Ｔｉ变体．本文讨论了β－Ｔｉ（Ｈ）共析转变的切变机制． 关键词 ： Ｔｉ－Ｈ合金,  δ氢化物,  高分辨电子显微术（ＨＲＴＥＭ）,  共析转变     Abstract：The morphology and the fine structure of the hydrides in Ti-H alloys, containing 0.2-1.53 wt-% hydrogen, were investigated by TEM. It was found that the eutectoid transformation products from β-Ti(H) were consisted of δ hydrides and α-Ti,forming a micro-polycrystalline aggregate, while γ hydride was precipitated from α-Ti(H) directly. The atomic structure of these microcrystals were carefully delineated by HRTEM, showing that there may be ten variants of α-Ti around δ hydrides, which can keep two definite crystallographic relationships with α-Ti. The shear mechanism of the eutectoid transformation is discussed. Key words： Ti-H alloy    δ hydride    HRTEM    eutectoid transformation 收稿日期: 1995-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 康强 张彩碚 赖祖涵 宁小光 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1995/V31/I6/241 1NumakuraH,KoiwaM．ActaMetall,1984;32(10):17992NumakuraH,KoiwaM,AsanoH,IzumiF．ActaMetall,1988;36(8):22673BourretA,LasalmonieA,NakaS．ScrMetall,1986;20:8614KasukabeY,YamadaY,BursillLA．PhilosMag,1993;A67(1):735ZhangCB,KangQ,LaiZH．ActaMetallMater,1994;42(7):25556XiaoHZ．ScrMetallMater,1992;27:5717张彩碚,赖祖涵,计蓉,于瀛大．材料科学进展,1993;7(6):4618LenningGA,CraigheadCM,JaffeeRI．TransMetallSocAIME,1954;200:3679BurgersWG．Physica,1933—1934;I:561 [1] 李龙飞 李伟 孙祖庆 杨王玥. 基于离异共析转变的共析钢组织细化[J]. 金属学报, 2009, 45(6): 704-710. [2] 刘军民;张进修. 共析转变过程中内耗与复模量行为的对比[J]. 金属学报, 1996, 32(8): 785-790. Viewed Full text Abstract Cited   Shared      Discussed