金属学报  1987, Vol. 23 Issue (6): 464-469

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Cu-Zn-Al合金中热弹性马氏体的高压电镜观察

邓永瑞;G.S.Ansell

北京钢铁学院;RensselaerPolytechnicInstitute;ColoradoSchoolofMines教授院长

HIGH VOLTAGE TEM OBSERVATION OF THERMOELASTIC MARTENSITIC TRANSFORMATION IN A Cu-Zn-Al ALLOY

by DENG Yongrui (Beijing University of Iron and Steel Technology); ANSELL; G. S.. (Rensselaer Polytechnic Institute; USA) (Manuscript received 3 December; 1985; revised manuscript 28 May; 1985)

邓永瑞;G.S.Ansell. Cu-Zn-Al合金中热弹性马氏体的高压电镜观察[J]. 金属学报, 1987, 23(6): 464-469.
, . HIGH VOLTAGE TEM OBSERVATION OF THERMOELASTIC MARTENSITIC TRANSFORMATION IN A Cu-Zn-Al ALLOY[J]. Acta Metall Sin, 1987, 23(6): 464-469.

摘要 参考文献 相关文章 Metrics 全文: PDF(3216 KB)   摘要: Cu-29％Zn-3％Al合金中存在热弹性马氏体转变。高压电镜(1000—1200kV)观察表明,母相(β′)为DO_3结构,马氏体(M)为18R结构;试样厚处(～1μm)的马氏体片内可见微小棍状晶体堆积成的精细组织,棍状体粗约10nm并有界面分开;马氏体的表面凹凸不平、极不规则。试样薄处的β′-M界面呈平坦状或规则的锯齿状、排列着平行的位错线簇。尽管电镜试样在金相显微镜下观察到转变的可逆性,而在电镜下则只观察到正转变(β′→M)。这可能是因薄箔试样不易储存弹性能的结果。 Abstract：The martensitic transformation in Cu-29%Zn-3%Al alloy occurs thermoelastically. High voltage TEM observation shows that the parent phase belongs to DO_3 and martensite belongs to 18R in structure. Fine structures of tiny packages with a traverse size of～10nm in martensite plates have been seen at the thicker part of the sample. The boundary between β' and M at the thinner part was flat or sawtooth-like composed parallel dislocation lines: Although the reversibility of the transformation in TEM samples has been observed under an optical microscope, only the β'→M transformation observed on TEM. Probably, the thickness of thiner part of the foil is too small to store enough elastic energy which is the driving force of the reverse transformation. 收稿日期: 1987-06-18      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 邓永瑞 G.S.Ansell 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I6/464 1 武沢和羲,佐藤博保,阿部良贤,佐藤进一.日本金属学会志,1979;43:235 2 Balcelo G, Rapacioli R, Ahlers M. Scr Metall, 1978; 12: 1069 3 Takezawa K, Izumi T, Chiba H, Sato S. In: ICOMAT-82, Lelaey L ed., International Conference on Martensitic Transformations, at Leuven August 1982, Belgium, 1982: 813 4 Chakravorty S, Wayman CM. Acta Metall, 1977; 25: 989 5 Tadaki T, Katsuki K, Shimizu K. Symposium on New Aspects of Martensitic Transformations, JIM, Kobe, Japan. 1976: 187 6 Lovey F C. In: ICOMAT-82, Lelaey L ed., International. Conference on Martensitic Transformations. at Leuven August 1982, Belgium, 1982: 585 7 Deng Y. Doctoral Thesis, 1984, Rensselaer Polytechnic Institute, USA No related articles found! Viewed Full text Abstract Cited   Shared      Discussed