| σ相的析出对双相不锈钢组织性能的影响 |
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| 引用本文： | 王国华.σ相的析出对双相不锈钢组织性能的影响[J].中国冶金,2011,21(6):15-18. |
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| 作者姓名： | 王国华 |
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| 作者单位： | 山西太钢不锈钢股份有限公司技术中心， 山西 太原 030003 |
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| 摘 要： | σ相是一种富Cr、Mo的金属间化合物，它的存在会使钢的强度提高，塑韧性降低，恶化耐蚀性能。主要从成分、组织、性能等方面对S31803、S32750双相不锈钢σ相的析出行为进行研究。结果表明：Cr、Mo增加了σ相析出的敏感性，而且随时效时间的延长，σ相析出的数量不断增加；而且σ相的析出对材料的塑性、耐蚀性都造成不利影响。
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| 关 键 词： | 双相不锈钢 σ相 性能研究 |
Influence of the Sigma Phase Precipitation on the Microstructure and Properties in Duplex Stainless Steel |
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| WANG Guo-hua.Influence of the Sigma Phase Precipitation on the Microstructure and Properties in Duplex Stainless Steel[J].China Metallurgy,2011,21(6):15-18. |
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| Authors: | WANG Guo-hua |
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| Affiliation: | WANG Guo-hua(Technology Center of Shanxi Taiyuan Stainless Steel Co.,Ltd.,Taiyuan 030003,Shanxi,China) |
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| Abstract: | Sigma phase as intermetallic compound with Cr and Mo will increase the strength of steel and make the plastic,toughness and corrosion resistance worse.The precipitation of sigma phase in S31803 and S32750 duplex stainless steel is studied through composition,microstructure,properties and other aspects of in this paper.The results show that Cr and Mo increase the sensitivity of sigma phase precipitation and sigma phase will increase with aging time.The sigma phase precipitation adversely affects the plastic,... |
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| Keywords: | duplex stainless steel sigma phase performance research |
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