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晶粒细化作为强化金属材料的有效方法受到了研究者的广泛关注,其具有高强度、高硬度和良好的耐磨性等特点。同时,晶粒细化对奥氏体不锈钢的腐蚀性能及腐蚀机制影响也得到了广泛的关注。综述了纳米及超细晶奥氏体不锈钢材料的耐腐蚀性能研究进展,着重讨论了超细尺度结构,包括晶粒大小、相组成、孪晶等对不锈钢耐腐蚀性能影响的最新进展。

The grain refinement of austenite stainless steel is widely studied due to its enhanced mechanical properties,such as high strength,high hardness and good wear resistance.Meanwhile,the effect of nanocrystallines (NC)and ultrafine grains (UFG)on corrosion performance also attracts more attention.This paper focuses its attention mainly on the corrosion mechanism of the stainless steel with NC/UFG microstructure. The latest developments of corrosion mechanisms of the refined austenite stainless steels are introduced involving the microstructures of grain size,phase composition and twin.

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