金属学报  1981, Vol. 17 Issue (2): 185-195

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相变产物与母相晶粒间取向关系的理论分析

王桂金;康振川;赵伯麟

冶金部钢铁研究总院;北京冶金研究所;北京钢铁学院

ON THE ORIENTATION RELATIONSHIP BETWEEN TRANSFORMATION PRODUCT AND PARENT PHASE

Wang Guijin (Central Iron and Steel Research Institute;Ministry of Metallurgical Industry)Kang Zhenchuan (Beijing Institute of Metallurgy Research) and Zhao Buolin (Beijing Institute of Iron and Steel Technology)

王桂金;康振川;赵伯麟. 相变产物与母相晶粒间取向关系的理论分析[J]. 金属学报, 1981, 17(2): 185-195.
, , . ON THE ORIENTATION RELATIONSHIP BETWEEN TRANSFORMATION PRODUCT AND PARENT PHASE[J]. Acta Metall Sin, 1981, 17(2): 185-195.

摘要 参考文献 相关文章 Metrics 全文: PDF(765 KB)   摘要: 根据0点阵理论计算了fcc/bcc和fcc/bct在三种取向关系时的0点阵单胞体积V~(0).按V~(0)越大,该取向越稳定的判据,得知不同取向关系有各自合理存在的γ值范围。当γ值取某些特定值,就出现能量最低的二维0线点阵。业已提出,溶质原子可能局部偏析或贫化,使界面处γ值发生变化而降低界面的位错密度。α/β黄铜中Zn的偏析可以用这个模型加以解释。 业已表明,四方畸变的大小和方向对V~(0)影响显著。如果已知fcc/bct的取向关系,就可以预示合理的畸变方向。但是,要说明Fe-C合金中取向关系由K-S转变成N-W的事实,得假定碳原子偏析到界面内的<11(?)>_f方向。 Abstract：The cell volume V~((0)) of fcc/bcc and fee/bet has been calculated for three orientation relationships. The orientation will be acceptable if its V~((0)) is larger than others, and everyone has its own range of lattice parameter ratio. Then the lower energy 0 lattice will appear when γ gets some particular value. It is suggested that the γ value can be changed locally by segregating or depleting solute atoms near boundary so that the density of dislocation on boundary can be decreased. The Zn segregation in α/β brass would be explained with this mode.It is shown that the magnitude and direction of tetragonal distortion affect the V~((0)) considerably. It will be expected to predict the reasonable distortion direction if the orientation and the lattice parameter are given. But the fact that the orientation relationship between austenite and martensite in Fe-C alloy changes from K-S to N-W can be explained satisfyingly if it is suggested that carbon atoms move to transformation interface along <11(?)>_f direction. 收稿日期: 1981-02-18      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 王桂金 康振川 赵伯麟 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1981/V17/I2/185 [1] Saisan, (西山), Sci. Rep. Res., Inst. Tohoku Univ., Ser. 1, 23(1924) , 638． [2] #12 [3] Bain, E. C., Trans. AIME, 70 (1924) , 25． [4] Bollmann, W., Crystal Defects and Crystalline Interface, Springer Verlag, Berlin 1970． p. 188 [5] 高杉隆幸、和泉修,日本金属学会誌,42(1978) ,1089． [6] Bollmann, W., Phys. Status Solidi, (a) 21 (1974) , 543． [7] Chadwick, C. A., Metallography of Phase Transformation, Butterworths, London, 1972． [8] Hume-Ruthely, W. and Roynor, G. V., The Structure of Metal and Alloy, 4th ed., The Institute of Metals, London, 1962． [9] Kurdjumov, G. V., Supplement to Trans. Jap. Inst. Metals, Publ by JIM, 1976, p. 9． [10] Thomas, J., Sci. Instru., 25 (1948) , 440． [11] Newkirk, J. B., J. Metals, 9 (1957) , 348． [12] 康振川、王桂金、赵伯麟,Fe-C合金的γ/α界面的研究(待发表)。 [13] Christian, J. W., The Theory of Transformation in Metals and Alloys, Pergamon, Oxford, 1965． [14] #12 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed