金属学报  1984, Vol. 20 Issue (4): 255-385

论文 本期目录 | 过刊浏览 |

铬镍结构钢断口表面“亮带”缺陷本质的研究

李恒武;徐永波

辽宁省理化测试中心;中国科学院金属研究所

"BRIGHT BAND" DEFECT ON FRACTURE SURFACE IN Cr-Ni STRUCTURAL STEELS

LI Hengwu (Liaoning Provincial Centre of Physical Testing and Chemical Analysis; Shenyang); XU Yongbo (Institute of Metal Research; Academia Sinica; Shenyang) (Manuscript received 30 July; 1983; revised manuscript 28 November; 1983)

李恒武;徐永波. 铬镍结构钢断口表面“亮带”缺陷本质的研究[J]. 金属学报, 1984, 20(4): 255-385.
, . "BRIGHT BAND" DEFECT ON FRACTURE SURFACE IN Cr-Ni STRUCTURAL STEELS[J]. Acta Metall Sin, 1984, 20(4): 255-385.

摘要 参考文献 相关文章 Metrics 全文: PDF(3465 KB)   摘要: 利用金相显微镜、电子显微镜、离子探针等方法对几种Cr-Ni结构钢大规格钢材的断口上亮带的性质及其对力学性能的影响进行了研究。实验结果表明这种缺陷是氢在钢坯上沿枝晶间发生偏聚引起的一种氢损伤。对钢的冲击值、面缩、延伸率等性能有明显的降低作用。 文中还对这种缺陷产生的机制以及消除途径作了较深入的讨论。 Abstract：The investigations were conducted by TEM, SEM and IMP techniques on the problem of "bright band" defect found occasionally on the longitudinal macroscopic fracture surface in commercial Cr-Ni structural steels, e. g. 30CrMnSiNi, 40CrNiMo, 4SCrNi, etc. The influence of "bright band" on their mechanical properties has also been evaluated. Results showed that the "bright band" defect is the hydrogen damage which is caused by hydrogen interdendritic segregation during solidification of steel ingots. This defect may lower obviously the impact toughness, reduction of area as well as elongation of the steels. The mechanism of its formation and the prevention have been discussed. 收稿日期: 1984-04-18      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 李恒武 徐永波 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I4/255 1 陈廉;徐永波;尹万全,金属学报,14(1978) ,253． 2 中国科学院金属研究所,断口及冶金产品质量评价,未发表资料,1978年. No related articles found! Viewed Full text Abstract Cited   Shared      Discussed