Please wait a minute...
金属学报  1992, Vol. 28 Issue (2): 43-46    
  论文 本期目录 | 过刊浏览 |
高纯Fe中氢损伤规律的研究
吴奕初;常香荣;田中卓;肖纪美
北京科技大学;北京科技大学;副教授;北京(100083)北京科技大学材料物理系;北京科技大学;北京科技大学
HYDROGEN DAMAGE IN HIGH PURITY IRON
WU Yichu;CHANG Xiangrong;TIAN Zhongzhuo;XIAO Jimei University of Science and Technology Beijing
引用本文:

吴奕初;常香荣;田中卓;肖纪美. 高纯Fe中氢损伤规律的研究[J]. 金属学报, 1992, 28(2): 43-46.
, , , . HYDROGEN DAMAGE IN HIGH PURITY IRON[J]. Acta Metall Sin, 1992, 28(2): 43-46.

全文: PDF(588 KB)  
摘要: 本文采用正电子湮没技术研究了高纯Fe中的氢损伤规律,实验结果表明,在0.5mol/L H_2SO_4溶液中不加毒化剂电解充氢时,产生氢损伤的临界电流密度为20 mA/cm~2;而在0.5mol/L H_2SO_4溶液中加少量As_2O_3作为毒化剂电解充氢时,即使很小的电流密度也会产生氢损伤,配合慢拉伸试验,还发现试样内部产生氢损伤以后,它将控制随后的形变和断裂过程
关键词 氢损伤临界电流密度正电子湮没技术氢致缺陷    
Abstract:Hydrogen damage in Fe of 99.99% purity has been investigated by Doppler broadening measurement. Experimental results show that when the iron is charged with hydrogen in 0.5 mol / L H_2SO_4 so-lution, the critical current density to cause hydrogen damage is 20 mA / cm~2. While a little As_2O_3, saying 250 mg / L, added to H_2SO_4 solution, even rather small current density, <0.2 mA / cm~2, would cause hydrogen damage. With the help of slow tensile test, it revealed that the hydrogen damage occurred in the specimen may be influential to the subsequent process of deformation and fracture.
Key wordshydrogen damage    critical current density    positron annihilation technique    hydrogen-induced defect
收稿日期: 1992-02-18     
基金资助:国家自然科学基金
1 Hirth J P. Metall Trans, 1980; 11A: 861
2 羽木秀树,林安德,大谷南海男.日本金属学会志,1978;42:124
3 West R N. In: Hautojarvi P ed., Positrons in solids, Berlin: Springer-Verlag, 1979: 89
4 Alam A. J Phys F: Met Phys, 1981; 11(10) : L259
5 Nieminen R M, Laakkonen J, Hautojarvi P, Vehanen A. Phys Rev, 1979; 19B: 1397
6 Pressouyre G M, Bernstein I M. Metall Trans, 1981; 12A: 835
7 Tian Zhongzhuo, Chang Xiangrong, Lu Rongbang, Hsiao Chimei (Xiao Jimei), Xue Jiayu, Ji Guokun. Scr Metall, 1982; 16: 1383
8 王燕斌.北京科技大学博士学位论文,1985v
[1] 安旭东, 朱特, 王茜茜, 宋亚敏, 刘进洋, 张鹏, 张钊宽, 万明攀, 曹兴忠. 奥氏体316不锈钢中位错与氢的相互作用机理[J]. 金属学报, 2021, 57(7): 913-920.
[2] 刘洋,向伟,王博宇. 脉冲离子束辐照对TiH2膜表面微观结构的影响[J]. 金属学报, 2013, 49(10): 1269-1274.
[3] 王博宇 向伟 谈效华 戴晶怡 程亮 秦秀波. D+离子束辐照对Ti膜的影响[J]. 金属学报, 2010, 46(7): 810-813.
[4] 赵法如;王宝义;童志琛;王天民. 多晶纯镍中氢致缺陷及其回复行为[J]. 金属学报, 1997, 33(4): 345-351.
[5] 于广华;程以环;陈红星;牛学军;乔利杰;褚武扬. C90油管钢的氢损伤[J]. 金属学报, 1996, 32(6): 617-623.
[6] 邱竹贤;姚广春;于亚鑫;张中林. 锂盐碳阳极的可湿性与临界电流密度研究[J]. 金属学报, 1994, 30(22): 439-443.
[7] 王燕斌;王安荣;褚武扬;肖纪美. Fe—3wt—%Si合金氢损伤的X射线形貌照相法研究[J]. 金属学报, 1992, 28(9): 52-56.