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Abstract The effects of stress components on stress corrosion of notched brass specimens under Mode Ⅱ loading in 1N NH_4 OH+CuCl_2 5g/1 aqueous solution were investigated.Based upon the experimental results, including threshold values under static loading,the effects of alternating loading and room temperature creep,as well as metallographic observations of the fractography,it is concluded that notwithstanding stress corrosion or corrosion fatigue in aqua ammoniae,or fatigue in air,the cracks always initiate at the site subject to maximum normal stress(θ=-110°)along the notched surface,and then propagate along the maximum shear stress direction from that site(α=-35°).This indicates that normal stress component plays a dominant role in stress corrosion of this system,which is related to the anodic dissolution accelerated by normal stress component.
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Received: 25 February 1990
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[1] Pugh,E.N.et.al.,Fundamental Aspeets of Stress Corrosion Cracaing,eds.Staehle R.W.et.al.,P118,NACE,Houston.1969
[2] Sdully,J.C.,Corrosion Science,10,37(1970)
[3] Vermilyea,D.A.,J.Electrochem.Soc.,119, 405(1972)
[4] Forfy,A.J.,Humble,Phil.Mag.,8,247(1963)
[5] McEvily,A.J.Jr.,Bond,A.P.,J.Electrochem.Soc.,112,141(1965)
[6] 乔利杰、褚武扬、肖纪美,北京钢铁学院学报2,113,(1936)
[7] 张统一等,中国腐蚀与防护学报7(2) ,83(1987)
[8] 乔利杰等,中国腐蚀与防护学报,6(4) ,273(1986)
[9] 褚武扬著,氢损伤与氢致开裂,冶金工业出版社,1987年
[10] Bursle,A.J.,Pwgh,E.N.,Environmental-Sensitgve Fracture of Engineerinq Materials,ed,Foroulis,Z.A.,TMS-AIME,New York,18(1979)
[11] Chu,W.Y.,Hsiao,C.M.,Xu,B.Q.,Metall.Trans.A,17A,711(1986)
[12] Qiao,L.J.,Chu,W.Y.,Hsiao,C.M.,S(?)ripta Met.,21,7(1987)
[13] Bakish,R.,and Rocertson,W.,J.Electroehem.Soc.,103,320(1956) |
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