高濃度塩化物溶液中における二相ステンレス鋼とその溶接継手部の応力腐食割れ特性 : 二相ステンレス鋼とその溶接継手部の環境強度評価(第1報)
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概要
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Susceptibility of stress corrosion cracking (SCC) of duplex stainless steel, SUS329_J1 was investigated in 42%MgCl_2 aq.sol. (416 K). Results were as follows : Effect of structural anisotropy for SCC were studied. It was made clear that SCC was more susceptible in the case of crack growth being parallel to main rolling direction than in other cases and crack tend to propagate along α phase other than γ phase. In addition, SCC susceptibility was remarkably high in welded plates, although 329_J1 base metal had high resistance to SCC. This would be caused that the residual stress were higher for its high yielding strength of base metal.
- 1986-05-05
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