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固溶处理对双相不锈钢组织性能的影响

Heavy Castings and Forgings(2013)

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Abstract
研究对比了一种铁素体-奥氏体双相不锈钢铸态和1050℃固溶处理后的组织与性能。对固溶处理前后δ-铁素体,γ-奥氏体及σ相形貌、成分及拉伸断口形态进行了研究与分析。实验结果表明:试验用双相不锈钢的铸态组织为γ-奥氏体、δ-铁素体和σ相;经1050℃固溶处理后σ相溶解,塑性指标较铸态时有所升高,其中屈服强度与断面收缩率升高较明显。
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Key words
duplex stainless steel,solution treatment,mechanical property
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