超临界电站锅炉高温过热器爆管失效分析
Heat Treatment of Metals（2015）
Abstract
对某超临界电站锅炉高温过热器爆管的失效机理进行分析,研究了某12x18H12T奥氏体不锈钢锅炉管的服役特性,探讨了此锅炉管爆管失效机理.结果表明,随服役时间的延长,该奥氏体不锈钢中σ相大量析出,析出相在晶界上呈连续链状分布,σ相硬而脆,弱化了晶界,进而造成微观损伤,最终导致爆管.
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