金属学报  1984, Vol. 20 Issue (3): 143-150

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淬火空位对Fe-Ni合金马氏体相变的影响

徐祖耀;颜林发

上海交通大学;上海交通大学;上海钢铁研究所

EFFECT OF QUENCHED-IN VACANCIES ON MARTENSITIC TRANSFORMATION IN Fe-Ni ALLOYS

XU Zuyao (T. Y. Hsu); YAN Linfa (Shanghai Jiaotong University) (Manuscript received 27 February; 1983)

徐祖耀;颜林发. 淬火空位对Fe-Ni合金马氏体相变的影响[J]. 金属学报, 1984, 20(3): 143-150.
, . EFFECT OF QUENCHED-IN VACANCIES ON MARTENSITIC TRANSFORMATION IN Fe-Ni ALLOYS[J]. Acta Metall Sin, 1984, 20(3): 143-150.

摘要 参考文献 相关文章 Metrics 全文: PDF(1077 KB)   摘要: 脱碳Fe-Ni合金的实验表明:当奥氏体母相的晶粒度保持一定,淬火温度在900℃以上时,随淬火温度的升高,M_s降低,母相强度提高;将高温淬火的母相进行短时间退火,M_s上升,母相强度下降。提出了淬火空位和相变不全位错交互作用的模型,认为空位集团阻碍了马氏体的形核。淬火母相的TEM观察初步肯定了上述结论。导出空位的形成能为1.2—1.4eV,与已知数据符合;退火过程的激活能为0.18eV,与双空位分解能量相当。考虑到淬火应力的影响,本实验中用2500℃/s冷却速度淬火,适合于研究淬火空位对M_s的影响。 Abstract：Experimental results show that in some decarburized Fe-Ni alloys the M_s decreases and the strength increases with an increase in quenching temperature above 900℃ with a fixed parent phase grain size. After short time annealing of the quenched specimen, Ms increases and the strength decreases. A model of interaction of clustered point defect (vacancies)with partial dislocations is presented. It is suggested that the lowering of M_s is due to the pinning of the clustered vacancies to partial dislocations, hindering the nucleation of martensite. Preliminary TEM observation of substructure of austenite has comfired this view. From this experiment the energy of formation of vacancy is found to be 1.2-1.4 eV, in good agreement with the known values in Fe-Ni. The activation energy obtained in the annealing process is 0.18 eV, corresponding to the dissociation energy of bivacancies. The effect of quenching stress is also taken into consideration anti it is concluded that a moderate cooling rate of 2500℃/s seems just suitable for studying the effect of the quenched-in vacancies on M_s. 收稿日期: 1984-03-18      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 徐祖耀 颜林发 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I3/143 1 徐祖耀,马氏体相变与马氏体,科学出版社,北京,1980,p.370-371． 2 Olson, G. B.; Cohen, M., Metall. Trans., 7A (1976) , 1897, 1905, 1915． 3 Brooks, J.W.; Lerotte, M.H.; Smallman, R.E., Acta Metall., 27 (1979) , 1829, 1839． 4 Schiffgens, J. O.; Ashton, D. H., J. Appl. Phys., 45 (1974) , 1023． 5 Ingle, K.W.;Crooker, A.G., Acta Metall., 26 (1978) , 1461． 6 Boyer, L.L.; Hardy, J.R., Philos. Mag., 26 (1972) , 225． 7 Emrick, R.M., J. Phys. F: Metal Phys., 8 (1978,) 1353． 8 徐祖耀;高明;张寿柏,上海交通大学科研报告,1965． 9 Kinsman, K. R.; Shyne, J. C., Acta Metall., 15 (1967) , 1527． 10 徐祖耀,马氏体相变与马氏体,科学出版社,北京,1980,p.56． 11 Remy, L.; Pineau, A.; Thomas, B., Mater. Sei, Eng., 36 (1978) , 47． 12 Saka, H.; Sueki, Y.; Imura, T., Philos. Mag., A37 (1978) , 273． 13 Schramn, R.S.; Reed, R.P., Metall. Trans., 7A (1976) , 359． 14 徐祖耀,金属学报,16(1980) ,420． 15 Johnson, R.A., Phys. Rev., 152 (1966) , 629． 16 Caplain, A.; Chambron, W., Acta Metall., 25 (1977) , 1001． 17 吴自良;王其闵,物理学报,14(1958) .356;中国科学,7(1958) ,1029． 18 Xu Zuyao (T.Y. Hsu, 徐祖耀), Thermodynamic of Martensitic Transformation FCC(γ)-BCC (a), Shanghai Jiao Tong University Treatise, Ⅰ, 1981, MS-003． 徐祖耀,金属学报,15(1979) ,329． 19 Smallman, R.E., Modern Physical Metallurgy, London, Butterworths, 3rd ed., 1970, p.375-376． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed