High nitrogen and low nickel stainless steels exhibit attractive properties as high strength and ductility, good corrosion resistance and reduced tendency to grainboundary sensitization.
高氮低镍不锈钢具有良好的强度、延展性及耐腐蚀性能，且可以降低晶界的腐蚀敏感性。
2
In the present paper, both the process and new grainboundary of austenite recrystallized of 300m ultra high strength steel have been Oserved in-situ by means of high-temperature metalloscope and tem.
运用高温金相和TEM方法，对超高强度钢300m的奥氏体相变再结晶过程和新晶界进行了定位观察。
3
It is found that the alloying elements segregation in grains and the grainboundary cleanliness control the yield stress value and the tough-strength properties of this material respectively.