【摘要】 本文研究了Ｃｅ在一种铁素体－奥氏体双相不锈钢中的作用与作用机理。结果表明，含Ｃｅ的双相不锈钢的常、低温冲击功提高２０％－１００％，１０５０℃的延伸率提高５６％，面缩率提高４０％．钢中最佳Ｃｅ含蛋约为０．０３４％（质量分数）更多还原

【Abstract】 The behaviour of Ce in the ferrite -austenite duplex stainless steel SG52 has been studied. The room or low temperature notch impact energy of the steel SG52 with Ce addition has increased by 25% to 100% over that of no Ce added steel SG52. The elongation and area reduction of the former showed to be 56% and 40%, respectively, higher than the latter at 1050℃ . And the mechanical properties, hot workability and resistance to corrosion of the steel with 0.034% (mass fraction)Ce addition may be improved obviously.更多还原