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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48159

Title: Stress corrosion cracking of austenitic weld deposits in a salt spray environment
Authors: J.B. Cai
C. Yu
R.K. Shiue
L.W. Tsay
Contributors: 國立臺灣海洋大學:光電與材料科技學系
Keywords: Fusion zone
308L deposit
309LMo deposit
Weight loss
Stress corrosion cracking
Date: 2015-10
Issue Date: 2018-08-14T08:42:36Z
Publisher: Journal of Nuclear Materials
Abstract: Abstract: ER 308L and 309LMo were utilized as the filler metals for the groove and overlay welds of a 304L stainless steel substrate, which was prepared via a gas tungsten arc-welding process in multiple passes. U-bend and weight-loss tests were conducted by testing the welds in a salt spray containing 10 wt% NaCl at 120 °C. The dissolution of the skeletal structure in the fusion zone (FZ) caused the stress corrosion cracking (SCC) of the weld. The FZ in the cold-rolled condition showed the longest single crack length in the U-bend tests. Moreover, sensitization treatment at 650 °C for 10 h promoted the formation of numerous fine cracks, which resulted in a high SCC susceptibility. The weight loss of the deposits was consistent with the SCC susceptibility of the welds in a salt spray. The 309LMo deposit was superior to the 308L deposit in the salt spray.
Relation: 465 pp.774-783
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/48159
Appears in Collections:[光電科學研究所] 期刊論文

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