0Cr18Ni9Ti不锈钢表面纳米化层的组织和性能

机械工程材料, 2008, 32(11): 64-68.

0Cr18Ni9Ti不锈钢表面纳米化层的组织和性能

韩靖 ^1, , 盛光敏 ^2, , 胡国雄 ^3, , 周小玲 ^4, , 颜婧 ^5,

1.重庆大学材料科学与工程学院,重庆,400030

2.重庆大学材料科学与工程学院,重庆,400030

3.重庆大学材料科学与工程学院,重庆,400030

4.重庆大学材料科学与工程学院,重庆,400030

5.重庆大学材料科学与工程学院,重庆,400030

基金项目: 国家自然科学基金(50675234) 国家自然科学基金(200801A1B0100269)

关键词：高能喷丸 , 0Cr18Ni9Ti不锈钢 , 纳米 , 显微硬度

Microstructure and Properities of Surface Nanostructured Layer of 0Cr18Ni9Ti Stainless Steel

采用高能喷丸对0Cr18Ni9Ti不锈钢棒材端面进行了表面自纳米化处理;利用扫描电子显微镜、透射电子显微镜、X射线衍射仪和显微硬度计对塑性变形层的组织和性能进行了表征.结果表明:在距表面70 μm左右的范围内形成了100 nm以下的等轴纳米晶;从基体到喷丸表面,变形层的显微组织依次为单相奥氏体、奥氏体和马氏体两相共存、单相马氏体;晶粒细化显著提高了塑性变形层的显微硬度.

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材料期刊网

0Cr18Ni9Ti不锈钢表面纳米化层的组织和性能

Microstructure and Properities of Surface Nanostructured Layer of 0Cr18Ni9Ti Stainless Steel

参考文献