金属学报  1984, Vol. 20 Issue (2): 97-214

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CrMoV钢时效前热处理对磷在晶界偏析的影响

曲哲;C.J.McMahon;Jr

中国科学院金属研究所;美国Pennsylvania大学;美国Pennsylvania大学

THE EFFECTS OF PREAGEING ON SEGREGATION OF P IN A CrMoV TURBINE ROTOR STEEL

by QU Zhe (Institute of Metal Research; Academia Sinica; Shenyang); McMAHON C. J.; Jr (University of Pennsylvania; U. S. A.) (Manuscript received 28 December; 1982; revised manuscript 21 September; 1983)

曲哲;C.J.McMahon;Jr. CrMoV钢时效前热处理对磷在晶界偏析的影响[J]. 金属学报, 1984, 20(2): 97-214.
, , . THE EFFECTS OF PREAGEING ON SEGREGATION OF P IN A CrMoV TURBINE ROTOR STEEL[J]. Acta Metall Sin, 1984, 20(2): 97-214.

摘要 参考文献 相关文章 Metrics 全文: PDF(2244 KB)   摘要: 含有0.04wt-％P的汽轮机转子用CrMoV钢,时效前在较高温度(600和570℃)进行预时效处理,然后在480℃时效,元素磷偏析到晶界的速度比没有经过预时效处理的钢快得多。这与预时效过程中碳化物析出,基体成分改变有关。Mo可抑制磷的偏析,但因时效过程中富Mo碳化物的生成和长大,使基体中Mo的含量降低,因此,磷从Mo的“束缚”下“解放”出来并偏析到晶界,使脆性转变温度升高,此外,碳化物的粗化也可能导致脆性转变温度升高。 Abstract：Temper embrittlement of CrMoV turbine rotor steel with 0.04％ P aged at 480℃ after a higher temperature aging for 1000h (preaging) has been compared with that of the conventional heat treated steel with the same composition. The preaging virtually accelerated the rise in transition temperature. This is believed to be conneeted with the depletion of Mo, a scavenger of P, in matrix due to the Mo tithed carbides formation during preaging. Therefore, more P is released and segregated to grain boundaries. Carbide coarsening perhaps contributed to the increment in transition temperature too. 收稿日期: 1984-02-18      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 曲哲 C.J.McMahon Jr 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I2/97 1 Gould, G. C., Am. Soc. Test. Mater., Spec. Tech. Publ., №. 407, (1968) , p. 90． 2 Yu, Jin; McMahon, C. J, Jr, Metall. Trans., 11A(1980) , 277． 3 Yu, Jin; McMahon, C. J, Jr, ibid., 291． 4 Qu, Z.; Kuo, K. H., Metall. Trans., 12A(1981) , 1333． 5 Shultz, B. J.; McMahon, C. J., Jr, Am. Soc. Test. Mater., Spec. Tech. Publ., №. 449, (1972) ,p124． 6 Powers A. E., J. Iron Steer Inst., 186(1957) , 323． 7 Low, J. R., Trans. Metall. Soc. AIME, 242(1968) , 14． 8 Greaves, R. H.; Jones, J. A., J. Iron Steel Inst., 111(1925) , 231． 9 #12 10 金子秀夫;西泽泰二;玉置维照;谷藤晓男,日本金属学会志,29(1965) ,166． 11 Kalderon, D., Proc. Inst. Mech. Eng., 186(1972) , 341． 12 Baker, R. G.; Nutting, J., J. Iron Steel, Inst., 192(1959) , 257． 13 Dumoulin, Ph.; Foucalt, M.; Guttmann, M.; Palmier, M.; Wayman, M.; Biscondi, M., Met. Sci., 14(1980) , 1． 14 Qu, Z.; McMahon, C. J., Jr, Metall. Trans., 14A(1983) , 1101． 15 Mclean, D., J. Iron Steel Inst., 174(1953) , 360．j No related articles found! Viewed Full text Abstract Cited   Shared      Discussed