金属学报  1985, Vol. 21 Issue (1): 86-94

论文 本期目录 | 过刊浏览 |

奥氏体不锈钢应力腐蚀和氢致开裂的机理

褚武扬;王核力;马若涛;肖纪美

北京钢铁学院;北京钢铁学院;北京钢铁学院;北京钢铁学院

MECHANISM OF SLOW CRACK GROWTH AND STRESS CORROSION CRACKING IN AUSTENITIC STAINLESS STEEL

CHU Wuyang;WANG Heli;MA Ruotao;XIAO Jimei(Chi-Mei Hsiao)Beijing University of Iron and Steel Technology

褚武扬;王核力;马若涛;肖纪美. 奥氏体不锈钢应力腐蚀和氢致开裂的机理[J]. 金属学报, 1985, 21(1): 86-94.
, , , . MECHANISM OF SLOW CRACK GROWTH AND STRESS CORROSION CRACKING IN AUSTENITIC STAINLESS STEEL[J]. Acta Metall Sin, 1985, 21(1): 86-94.

摘要 参考文献 相关文章 Metrics 全文: PDF(2092 KB)   摘要: 通过金相跟踪观察、力学测量及断口分析,研究了奥氏体不锈钢氢致开裂和应力腐蚀的机理.结果表明,无论是不稳定型(321)还是稳定型(310)奥氏体不锈钢,电解充氢时先产生塑性变形,当它发展到临界状态时就导致氢致裂纹的形核.但在42%MgCl_2沸腾溶液中应力腐蚀时,裂纹的形核和滞后塑性变形无关.两种(321)輿氏体不锈钢应力腐蚀的门槛值K_(ISCC)远比严重充氢时氢致开裂的门槛值K_(IH)要低.两者的断口形貌也不同,应力腐蚀是解理断口,且和K_I无关.而氢致开裂断口和K_I有关,K_I高是韧窝,K_I低则获得准解理断口.实验表明,氢在奥氏体不锈钢应力腐蚀(沸腾MgCl_2介质)过程中并不起主要作用. Abstract：The mechanism of hydrogen induced slow crack growth(SCG)of type 321 and310 steels and stress corrosion cracking(SCC)of type 321 steel in boiling MgCl_2solution were investigated.The tracing observation showed that the plastic zoneahead of a loaded notched tip of austenitic stainless steels,whether stable or un-stable,was enlarged continuously with time and then SCG would occur while thedelayed plastic deformation developed to a certain extent.However,the initiationand propagation of SCC of type 321 in boiling MgCl_2 solution was independentof the delayed plastic deformation.The threshold values of SCC of type 321 steelsin boiling MgCl_2 solution were much lower than that of SCG during dynamicalcharging of hydrogen at high fugacity.The morphologies of the fracture surfacesof SCC of type 321 steel differed from that of SCG,which was intensely depen-dent upon the K_I at the crack tip.These results lend support to the statement thathydrogen evolved from cathodic reaction does not play a controlling part in theSCC of stainless steel in boiling MgCl_2 solution. 收稿日期: 1985-01-18      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 褚武扬 王核力 马若涛 肖纪美 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I1/86 1 Whiteman,M.B.;Troiano,A.R.,Corrosion,21(1965) ,53． 2 Eliezer,D.;Chakrapani,D.G.;Altstetter,C.J.;Pugh,E.N.,Metall.Trans.,10A(1979) ,935． 3 Singh,S.;Altstetter,C.,Metall.Trans.,13A(1982) ,1799． 4 Chu,W.Y.(褚武扬);Yao.J.(姚京);Hsiao,C.M.(肖纪美),Metall.Trans.,15A(1984) ,729． 5 姚京;褚武扬;肖纪美,金属学报,20(1984) ,A124． 6 Chu,W.Y.(褚武扬);Li,S.Q.(李世琼);Hsiao,C.M.(肖纪美);Tien,J.Z.(田中卓),Corrosion,36(1980) ,475． Chu,W.Y.(褚武扬);Liu,T.H.(刘天化);Hsiao,C.M.(肖纪美);Li,S.Q.(李世琼),Corrosion,37(1981) ,320． 7 Chu,W.Y.(褚武扬);Li,S.Q.(李世琼);Hsiao,C.M.(肖纪美);Ju,S.Y.(朱淑彦),Corrosion,37(1981) ,514． Chu,W.Y.(褚武扬);Hsiao,C.M.(肖纪美);Ju,S.Y.(朱淑彦);Wang,C.(王枨),Corrosion,38(1982) ,446． 8 Chu,W.Y.(褚武扬);Wang,Y.B.(王燕斌);Hsiao,C.M.(肖纪美);Corrosion,38(1982) ,561． 9 褚武扬;肖纪美;李世琼,金属学报,17(1981) ,10． 褚武扬;肖纪美;李世琼;朱淑彦,ibid.,18(1982) ,47． 10 Theus,G.J.;Staehle,R.W.,Stress Corrosion Cracking and Hydrogen Embrittlement of Iron Base Alloy,Eds.Staehle,R.W.;Hochmann,J.,NACE,Houston,1977,p.845． 11 姚京;褚武扬;肖纪美,金属学报,19(1983) ,A445． 12 Chu,W.Y.(褚武扬);Yao,J.(姚京);Hsiao,C.M.(肖纪美),Corrosion,40(1984) ,302 13 褚武扬;林实;王枨;田中卓,断裂韧性测试,科学出版社,1979,p.158． 14 褚武扬著,氢损伤和氢致开裂,冶金工业出版社,即将出版. 15 Chu,W.Y.(褚武扬);Hsiao,C.M.(肖纪美);Metall.Trans.,15A(1984) ,2087． 16 禇武扬;肖纪美;李文学;张彦国,金属学报,20(1984) ,A189． 17 褚武扬编著,断裂力学基础,科学出版社,1979,p.28． 18 Chu,W.Y.(褚武扬);Hsiao,C.M.(肖纪美);Jin,L.J.(金连强);Liu,T.W.(刘天化),Scr.Metall.,17(1983) ,993． 19 乔利杰;褚武扬;肖纪美,氢在奥氏体不锈钢应力腐蚀中的作用,待发表.Y No related articles found! Viewed Full text Abstract Cited   Shared      Discussed