|
|
|
| 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 |
|
Cite this article:
CHU Wuyang;WANG Heli;MA Ruotao;XIAO Jimei(Chi-Mei Hsiao)Beijing University of Iron and Steel Technology. MECHANISM OF SLOW CRACK GROWTH AND STRESS CORROSION CRACKING IN AUSTENITIC STAINLESS STEEL. Acta Metall Sin, 1985, 21(1): 86-94.
|
|
|
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.
|
|
Received: 18 January 1985
|
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 Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
