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研究表明,添加4wt%Si 的粉末冶金316L 不锈钢由单相奥氏体转变为奥氏体+铁素体双相组织,烧结密度和体积收缩率分别提高12%和230%,疏松和孔隙明显减少,从而显著提高抗 Cl~-离子腐蚀性能,接近冶炼316L 不锈钢的水平。
The results show that the addition of 4wt% Si powder metallurgy 316L stainless steel from single phase austenite to austenite + ferrite duplex structure, the sintering density and volume shrinkage increased by 12% and 230%, respectively, porosity and porosity was significantly reduced , Thereby significantly improving the anti-Cl ~ - ion corrosion performance, close to the level of smelting 316L stainless steel.