金属学报  1983, Vol. 19 Issue (2): 42-48

论文 本期目录 | 过刊浏览 |

含磷Cr-Mn-Si和Ni-Cr钢回火脆性的研究——磷在晶界偏聚及添加La的作用

杨亦石;邹惠良

包头冶金研究所;上海测试技术研究所

TEMPER BRITTLENESS OF P-DOPED STEELS 35CrMnSi AND 35CrNi3——Grain Boundary Segregation of P and Effect of La Addition

YANG Yishi (Baotou Research Institute of Metallurgy); ZOU Huiliang (Shanghai Institute of Metrology)

杨亦石;邹惠良. 含磷Cr-Mn-Si和Ni-Cr钢回火脆性的研究——磷在晶界偏聚及添加La的作用[J]. 金属学报, 1983, 19(2): 42-48.
, . TEMPER BRITTLENESS OF P-DOPED STEELS 35CrMnSi AND 35CrNi3——Grain Boundary Segregation of P and Effect of La Addition[J]. Acta Metall Sin, 1983, 19(2): 42-48.

摘要 参考文献 相关文章 Metrics 全文: PDF(544 KB)   摘要: 用Auger电子能谱(AES)研究了含磷450ppm的35CrMnSi和35CrNi3钢回火脆性与杂质元素磷及合金元素Ni,Cr,Mn晶界偏聚的关系。含磷钢的回火脆性主要是由磷在原奥氏体晶界偏聚所致。经1200℃油淬、625℃回火1h水冷的所谓“韧态”,磷已在晶界大量偏聚,钢已明显脆化;经阶梯冷却脆化处理后,晶界磷浓度成倍增加。在阶梯冷却脆化期间,Ni-Cr钢中磷的晶界偏聚速率比Cr-Mn-Si钢大。试验钢的FATT与晶界含磷量成正比;Ni-Cr钢中晶界Ni与磷呈线性关系。试验钢中加入La能够减少相同状态下的晶界磷浓度,从而改善钢的回火脆性。 Abstract：An Auger electron spectroscopical study was made of the correlation between the temper brittleness and the grain boundary segregation of P together with alloying elements as Ni, Cr and Mn in steels 35CrMnSi and 35CrNi3 containing 450 ppm P. It was shown that the steels tested attributed substantially their temper brittleness to the P segregation along the prior austenite grain boundaries. Although in so called "ductile state", namely oil quenched at 1200℃, tempered at 625℃ for 1h and water quenched, a lot of P segregated already along the grain boundary, thus, the steels embrittled markedly. After embrittlement treatment by step cooling, intergranular P concentration increased sharply. During this treatment, the increasing rate of P segregation along grain boundary in Ni-Cr steel is greater than that in Cr-Mn-Si steel. The FATT of the steels tested is directly proportional to the intergranular P content. The intergranular segregation of Ni in Ni-Cr steel is related linearly to that of P. To the steels, the addition of La may improve their temper embrittlement owing to decrease of intergranular P concentration under similar state. 收稿日期: 1983-02-18      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 杨亦石 邹惠良 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1983/V19/I2/42 1 杨亦石,金属热处理学报,2(1981) ,8． 2 Davis, L. E.; MacDonald, N. C.; Palmberg, P. W.; Riach, G. E. Waber, R. E., Handbook of Auger Electron Spectroscopy, Perkin-Elmer Corporation, 1978, U. S. A. 3 Mulford, R. A.; McMahon, C. J., Jr.,; Pope, D. P.; Feng, H. C., Metall. Trans., 7A(1976) , 1183． 4 Steven, W.; Balajiva, K., J. Iron Steel Inst., 193(1959) , 141． 5 Schulz, B. J.; McMahon, C, J., Jr., Am. Soc. Test. Mater., Spec. Tech. Publ., 499,(1972) , 104． 6 Stein, D. F.; Joshi, A.; Laforce, R. P., ASM Trans. Q., 62(1969) , 776． 7 Joshi, A.; Palmberg, P. W.; Stein, D. F., Metall. Trans., 6A(1975) , 2160． 8 YuJ.; McMahon, C. J., Jr., Metall. Trans., 11A(1980) , 291． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed