Effects of phosphorus segregation on stress corrosion cracking in the heat-affected zone of a dissimilar weld joint between a Ni-base alloy and a low alloy steel

Autor:	Yuichi Miyahara, Ziqing Zhai, Hiroshi Abe, Yutaka Watanabe
Rok vydání:	2015
Předmět:	Heat-affected zone Materials science General Chemical Engineering Phosphorus Alloy steel Alloy Metallurgy chemistry.chemical_element General Chemistry Atom probe Welding engineering.material Corrosion law.invention chemistry law engineering General Materials Science Stress corrosion cracking
Zdroj:	Corrosion Science. 92:32-42
ISSN:	0010-938X
DOI:	10.1016/j.corsci.2014.10.037
Popis:	Effects of phosphorus segregation on stress corrosion cracking (SCC) in the heat-affected zone of an Alloy 182-A533B dissimilar weld joint in high-temperature, oxygenated water doped with SO 4 2− and Cl − were evaluated by creviced bent beam test. Results indicate that step cooling and the addition of Cl − promoted SCC propagation and reactivation in the HAZ after cracks reach the fusion boundary. It is also suggested that phosphorus segregation at grain/packet boundaries and precipitate–matrix interfaces have promoted SCC, especially in coarse-grained HAZ and intercritically reheated coarse-grained HAZ.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e762d5519787e9babd16591751fd6f4a https://doi.org/10.1016/j.corsci.2014.10.037 Zobrazit plný text záznamu Full Text from ScienceDirect