金属学报  1998, Vol. 34 Issue (2): 141-145

论文 本期目录 | 过刊浏览 |

Co_3Ti金属间化合物的环境氢脆及氢扩散

万晓景;程晓英;陈业新

上海大学材料研究所;上海;200072;上海大学材料研究所;上海;200072;上海大学材料研究所;上海;200072

ENVIRONMEMTAL EMBRITTLEMENT AND HYDROGEN DIFFUSION IN Co_3Ti ALLOYS

WAN Xiaojing;CHENG Xiaoying;CHEN Yexin (Institute of Meterials Science; Shanghai University; Shanghai 200072)

万晓景;程晓英;陈业新. Co_3Ti金属间化合物的环境氢脆及氢扩散[J]. 金属学报, 1998, 34(2): 141-145.
, , . ENVIRONMEMTAL EMBRITTLEMENT AND HYDROGEN DIFFUSION IN Co_3Ti ALLOYS[J]. Acta Metall Sin, 1998, 34(2): 141-145.

摘要 参考文献 相关文章 Metrics 全文: PDF(1333 KB)   摘要: 研究了硼对Co3Ti环境脆性的影响，证明硼对Co3Ti合金无抑制环境氢脆的作用．用一种新方法测定了Co3Ti中氢的扩散系数，证明加硼或不加硼Co3Ti合金中氢的扩散系数相同，表明硼不降低氢的沿晶扩散，加硼Co3Ti合金仍然对水汽诱发的环境氢脆敏感是由于硼不偏聚在Co3Ti晶界，不能有效抑制氢的沿晶扩散所致． 关键词 ： Co3Ti,  环境氢脆,  氢扩散     Abstract：The effect of boron doping on the sensitivity to environmental embrittlement of Co3Ti alloys was investigated. The results show that the boron doping in Co3Ti does not have the effect on suppressing environmental embrittlement. The hydrogen diffusion coefficients in Co3Ti alloys with and without boron measured by a new experimental method have almost the same value, which indicates that boron in Co3Ti alloys does not reduce the hydrogen diffusivity along the grain boundaries. The susceptibility of boron-doped Co3Ti alloys to moisture-induced environmental embrittlement is attributed to no boron atoms segregating to the grain boundaries. Key words： Co_3Ti    environmental embrittlement    hydrogen diffusivity 收稿日期: 1998-02-18      基金资助:国家自然科学基金!59681002 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 万晓景 程晓英 陈业新 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1998/V34/I2/141 1George E P,Liu C T,Pope D P.Scripta Metall,1993;28:875 2 Wan X J, Zhu J H, Jing K L. Scr Metall 1992; 26: 473 3Takasugi,T ,Izumi O.Acta Metall,1986;3:607 4Tasasugi T, Izumi O, Yashida M.J Mater Sci,1991; 26: 1173 5 Wan X J, Zhu J H, Jing K L, Chen W J, Wu Y.J Mater Sci Technol 1994; 10: 39 6万晓景,朱家红,黄胜标.金属学报,1995;31:B183 (Wan X J, Zhu J H, Huang S B、 Acta Metall Sin, 1995; 31: B183) 7Wan X J, Zhu J H, Huang S B. Acta Metall Sin(Eng Lett), 1995; 8: 299 8Liu C T, White C L, Horton J A. Acta Mete 1985; 33: 213 9Wan X J, Zhu J H, Jing K L. Scr Metall Mater 1994; 31: 677 10Takasugi T, Hono K, Suzch S, Hanada S, Sukurai T. Scr Metall , 1993; 29: 1587 11Takasugi T, Takazawa M, Izumi O.J Mater Sci, 1990; 25: 4239 12Zhu J H, Wan X J, Wu Y. Scr Metalll Mater 1993; 29: 429 13George E P,Liu C T.Mat Res Soc Symp Proc,1995; 364:1131` [1] 蒋文春; 巩建鸣; 唐建群; 陈虎; 涂善东 . 焊接残余应力对氢扩散影响的有限元模拟[J]. 金属学报, 2006, 42(11): 1221-1226 . [2] 刘实; 郑华; 贵全红; 马爱华; 于洪波; 王隆保 . 管状样品中高温氢扩散系数的测定[J]. 金属学报, 2004, 40(4): 393-398 . [3] 徐东生; 李东; 胡壮麒 . Co3Ti化合物中合金元素有序行为的第一原理预测[J]. 金属学报, 1999, 35(9): 920-922 . [4] 孟庆海;陈廉;刘迪;柯伟. 堆焊结构界面区附近的微观组织结构、氢扩散富集与开裂行为研究[J]. 金属学报, 1998, 34(6): 633-639. [5] 万晓景;朱家红;黄胜标. Fe_3Al与水汽及氧气的表面反应[J]. 金属学报, 1995, 31(16): 183-187. [6] 朱家红;万晓景. Fe_3Al系合金环境氢脆研究[J]. 金属学报, 1994, 30(3): 139-144. [7] 徐坚;孙秀魁;陈文绣;李依依. Incoloy 903合金氢渗透与扩散的研究[J]. 金属学报, 1992, 28(11): 23-27. [8] 钱立和;曹名洲;万晓景. α-Fe中置换式合金元素的氢陷阱效应[J]. 金属学报, 1991, 27(1): 27-31. [9] 周达明;侯磊;金庆华;郭振亚;丁大同. 用核磁共振方法研究氢在LaNi_5,LaNi_4Cu,LaNi_4Fe晶格中的运动[J]. 金属学报, 1988, 24(2): 189-193. Viewed Full text Abstract Cited   Shared      Discussed