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金属学报  1998, Vol. 34 Issue (10): 1077-1083    
  论文 本期目录 | 过刊浏览 |
油井管钢氢致开裂门槛值研究
褚武扬;吕荣邦;乔利杰;王燕斌;程以环;陈红星;关永生;阎应龙;孙炜
北京科技大学材料物理系;北京;100083;北京科技大学材料物理系;北京;100083;北京科技大学材料物理系;北京;100083;北京科技大学材料物理系;北京;100083;宝山钢铁公司;上海;201900;宝山钢铁公司;上海;201900;天津钢管公司;天津;300301;天津钢管公司;天津;300301;天津钢管公司;天津;300301
THE THRESHOLD STRESS FOR HYDSOGEN-INDUCED CRACKING OF C90 TUBULAR STEELS
CHU Wuyang; LU Rongbang;QIAO Lijie; WANG Yanbin (Department of Materials Physics; University of Science & Technology Beijing; Beijing 100083)CHENG Yihuan; CHEN Hongxing(Baoshan Iron and Steel Corporation; Shanghai 201900);GUAN Yongsheng; YAN Yinglong; SUN Wei(Tianjin Steel Pipe Corporation; Tianjin 300310)Correspondent:CHU Wuyang; professor Tel: (010)62332906; Fax: (010)62327283;E-mail: ljqiao@public.bta.net.cn
引用本文:

褚武扬;吕荣邦;乔利杰;王燕斌;程以环;陈红星;关永生;阎应龙;孙炜. 油井管钢氢致开裂门槛值研究[J]. 金属学报, 1998, 34(10): 1077-1083.
, , , , , , , , . THE THRESHOLD STRESS FOR HYDSOGEN-INDUCED CRACKING OF C90 TUBULAR STEELS[J]. Acta Metall Sin, 1998, 34(10): 1077-1083.

全文: PDF(563 KB)  
摘要: 四种高强度油并管钢动态充氢时,进入试样的可扩散氢含量c0和充氢电流i成正比;而氢致断裂门槛应力σc与名义屈服强度σt之比和Inc0成正比,即σc/σt=A-BInc0.测量了四种钢在H2S中浸泡时进入试样的c0,求出相应的ic,用ic充氢时测出的门槛应力σc(H)/σt和H2S中应力腐蚀门槛应力σc(H2S)/σt相一致这表明,可用特定电流下的动态充氢来代替H2S应力腐蚀.
关键词 油井管钢H_2S应力腐蚀氢致开裂门槛应力    
Abstract:During dynamically charging four kinds of C90 tubular steels with hydrogen,the concentration of divisible hydrogen c0 is directly proportional to cathodic current i, and thenormalized threshold stress σc.(H)/σt decreases linearly with hi c0, i.e., σc(H)/σt=A-B ln c0.The concentrations of diffusible hydrogen in the steels during immersing in the H2S saturationsolution, c0*, have been measured. The values of σc(H)/σt during dynamically charging withic corresponding to c0* for the four steels are consistent with the threshold stress σc(H2S)/ctduring SCC in H2S solution. The result shows that the threshold stress during charging with asuitable current density ic can substitute for the threshold stress during SCC in H2S solution.
Key wordsC90 tubular steel    SCC in H_2S solution    hydrogen-induced cracking    threshold stress
收稿日期: 1998-10-18     
基金资助:国家自然科学基金!59671042,59725104
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