Role of water chemistry and microstructure in stress corrosion cracking in the fusion boundary region of an Alloy 182-A533B low alloy steel dissimilar weld joint in high temperature water

• Published in: Corrosion science Vol. 53; no. 12; pp. 4309 - 4317
• Main Authors: Peng, Qunjia, Xue, He, Hou, Juan, Sakaguchi, Kazuhiko, Takeda, Yoichi, Kuniya, Jiro, Shoji, Tetsuo
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2011; Elsevier
• Subjects: A. Alloy; A. Low alloy steel; Alloy steels; Alloying elements; Applied sciences; B. SEM; B. TEM; Boundaries; C. Stress corrosion; C. Welding; Corrosion; Corrosion environments; Crack propagation; Exact sciences and technology; Joining, thermal cutting: metallurgical aspects; Mathematical analysis; Metals. Metallurgy; Microstructure; Stress corrosion cracking; Water chemistry; Welding; B. SEM; C. Stress corrosion; A. Low alloy steel; A. Alloy; C. Welding; B. TEM; Water corrosion; Nickel base alloys; Scanning electron microscopy; Temperature; Welding; Stress corrosion cracking; High temperature; Low alloy steel; Transmission electron microscopy; Welded joint; Microstructure; Dissimilar metals

► Hardness gradient in the high hardness zone adjacent to fusion boundary in dilution zone. ► Combined effect of dissolved oxygen and sulfate concentration on crack growth in fusion boundary region. ► 400-ppb Sulfate in water for reactivating crack growth at fusion boundary at K = 30 MPa√m under nor...