退火对深冷轧制AISI310S奥氏体不锈钢组织和耐蚀性能的影响

材料热处理学报, 2016, 37(2): 65-71.

退火对深冷轧制AISI310S奥氏体不锈钢组织和耐蚀性能的影响

熊毅 ^1, , 陈路飞 ^2, , 王俊北 ^3, , 路妍 ^4, , 任凤章 ^5,

1.河南科技大学材料科学与工程学院,河南洛阳471023;有色金属共性技术河南省协同创新中心,河南洛阳471023

2.河南科技大学材料科学与工程学院,河南洛阳,471023

3.河南科技大学材料科学与工程学院,河南洛阳,471023

4.河南科技大学材料科学与工程学院,河南洛阳,471023

5.河南科技大学材料科学与工程学院,河南洛阳471023;有色金属共性技术河南省协同创新中心,河南洛阳471023

基金项目: 国家自然科学基金(50801021,51201061) 河南省高等学校重点科研项目应用研究计划(16A430005) 河南科技大学科技创新团队资助项目(2015XTD006) 河南省科技创新杰出人才支持计划项目(144200510009) 河南省科技攻关计划项目(152102210077) 河南省国际科技合作计划项目(152102410035)

关键词：奥氏体不锈钢 , 深冷轧制 , 退火 , 显微组织 , 耐蚀性能

Effects of annealing on microstructure and corrosion resistance of cryo-rolled AISD1OS austenitic stainless steel

Keywords： austenitic stainless steel , cryo-rolled , annealing , microstructure , corrosion resistance

借助光学显微镜(0M)、透射电镜(TEM)及电化学实验等方法研究了退火工艺对深冷轧制AISI310S奥氏体不锈钢显微组织和耐蚀性能的影响.结果表明:退火温度小于700 ℃,深冷变形组织处于回复阶段,退火温度大于700℃,深冷变形组织处于再结晶阶段,再结晶晶粒尺寸处于亚微米量级;随着退火温度增大至1000℃后,再结晶晶粒明显长大至2μm左右.极化曲线测试结果表明,与深冷变形奥氏体不锈钢相比,经退火处理后奥氏体不锈钢具有更高的自腐蚀电位,更低的腐蚀电流密度和更好的抗腐蚀性能.

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