Acta Metall Sin  1994, Vol. 30 Issue (10): 448-452    DOI:

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EFFECTS OF HYDROGEN ATOMS OF INITIATION AND PROPAGATION OF CRACKS UNDER SLOW LOADING

HAN Guangwei(Central Iron and Steel Research institute Ministry of Metallurgical Industry); SONG Yujiu; (Xi′an Jiaotong University)(Manuscript received 9 November; 1993; in revised form 3 June; 1994)

HAN Guangwei(Central Iron and Steel Research institute Ministry of Metallurgical Industry); SONG Yujiu; (Xi′an Jiaotong University)(Manuscript received 9 November; 1993; in revised form 3 June; 1994). EFFECTS OF HYDROGEN ATOMS OF INITIATION AND PROPAGATION OF CRACKS UNDER SLOW LOADING. Acta Metall Sin, 1994, 30(10): 448-452.

Abstract References Related Articles Recommended Metrics Download:  PDF(398KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The effects of hydrogen atoms on crack initiation and propagation have been studied in normalized Cr-1Mo steel using in situ SEM tensile experiment. The results are found that the critical plastic deformation at notch root for initiation of ductile crack is reduced by charging hydrogen, and the crack propagation pattern is also changed from continuous growth on the plane of maximum shear stress to uncontinuous growth on maximum normal stress plane. Hydrogen induced plastic deformation has not been found, and the effect mechanisms of hydrogen atoms are analysized.Correspondent: HAN Guangwei, Department 5, Central Iron and Steel Research Institute, Ministry of Metallurgical Industry, Beijing 100081 Key words:  intergranular crack      dislocation transport hydrogen atoms      critical hydrogen atom density      Cr- 1Mo steel      Received:  18 October 1994      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1994/V30/I10/448 1DoigP,JonesGT．MetallTrans,1977;8A:19932McMahonCJ,VitekV,JoklML．Fracture′77,NewYork:PergamonPress,3633ThompsonAWMetallTrans,1979;10A:7274韩光炜．西安交通大学博士学位论文,19925孙军．西安交通大学博士学位论文,1989 [1] Zilong ZHANG, Shuang XIA, Wei CAO, Hui LI, Bangxin ZHOU, Qin BAI. EFFECTS OF GRAIN BOUNDARY CHARACTER ON INTERGRANULAR STRESS CORROSION CRACKING INITIATION IN 316 STAINLESS STEEL[J]. 金属学报, 2016, 52(3): 313-319. [2] XIA Yuebo;WANG Zhongguang State Key Laboratory for Fatigue and Failure of Materials; Institute of Metal Research; Academia Sinica; Shenyang. CYCLIC DEFORMATION OF COARSE GRAINED POLYCRYSTALLINE PURE Al Ⅰ. SLIP CHARACTERISTICS[J]. 金属学报, 1992, 28(2): 3-8. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed