THE CHARACTERISTICS OF GRAIN BOUNDARIES AND INTERGRANULAR STRESS CORROSION CRACKING OF 30Cr3SiNiMoWV ULTRA—HIGH STRENGTH STEEL

J Chin Soc Corr Pro

1990, Vol. 10

Issue (1): 15-21 DOI:

Current Issue | Archive | Adv Search

THE CHARACTERISTICS OF GRAIN BOUNDARIES AND INTERGRANULAR STRESS CORROSION CRACKING OF 30Cr3SiNiMoWV ULTRA—HIGH STRENGTH STEEL

Li Guangfu Wu Rengen Lei Tingquan (Harbin Institute of Technology)

Download:

PDF(836KB)
Export: BibTeX | EndNote (RIS)

Abstract The characteristics of prior austenitic grain boundaries in tempered martensitic microstructure in relation to intergranular stress corrosion cracking of 30Cr3SiNiMoWV ultra-high strength steels were investigated mainly with Auger electron spectroscopy.The results showed that carbon and phosphorus segregated apparently at the grain boundaries.There is a very thin layer of carbide at the carbon enriched grain boundaries, where segregated phosphorus distributes randomly.The basic reason why this steel is susceptible to intergranular stress corrosion cracking is that the interface between the carbide layer and the matrix provides a strong trap for hydrogen and promotes the localization of anodic dissolution, while phosphorus hinders the formation of hydrogen molecules from hydrogen atoms.

Received: 25 February 1990

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors

Cite this article:

Li Guangfu Wu Rengen Lei Tingquan (Harbin Institute of Technology). THE CHARACTERISTICS OF GRAIN BOUNDARIES AND INTERGRANULAR STRESS CORROSION CRACKING OF 30Cr3SiNiMoWV ULTRA—HIGH STRENGTH STEEL. J Chin Soc Corr Pro, 1990, 10(1): 15-21.

URL:

https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1990/V10/I1/15

[1] 吴忍畊;李仁顺;石宏欢;崔忠圻;唐之秀,航天工艺,金属材料的氢脆与应力腐蚀开裂专辑,P.74,(1983)
[2] Beachem,C.D.,Metall.Trgns.,3A,P.437 (19/2)
[3] Banerji,S.K.;McMahon,C.J.;Feng,H.C.,Metall.Trans.,9A,P.237(1978)
[4] Bandyopadhyay,N.;Jun Kameda;McMahon,C.J.,Metall.Trans.,14A,P.881 (1983)
[5] 林栋梁:吴建生,金属学报,20,A62(1984)
[6] 林栋梁;吴建生,中国机械工程学会材料分会第二届应力腐蚀、氢脆、腐蚀疲劳学术会议论文集,1987,P.242,九江
[7] Simmons,G.W.;Pao,P.S.;Wei,R.P.,Metall.Trans.,9A,P.1147(1978)
[8] Sandoz,G.,Met all.Trans.,2A,P.1055(1971)
[9] Sandoz,G.,Metall.Trans.,3A,P.1169 (1972)
[10] 陈永朴;王永瑞,金属电子显微分析,机械工业出版社,P.222(1982)
[11] Czanderna,A.W.,强俊;胡中兴译,表面分析方法:国防工业出版社,P.99(1984)
[12] Hirth,J.P.,Metall.Trans.,11A,P.861 (1980)

No related articles found!

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed