徐海健,吕铮,高昊,刘春明

• 1:东北大学材料各向异性与织构教育部重点实验室

摘要(Abstract)：

采用机械合金化和热等静压方法,制备出名义成分为Fe-12Cr-2W-0.3Ti-0.3Y2O3(质量分数,%)的氧化物弥散强化钢(12Cr-ODS钢)。通过EBSD技术研究发现,12Cr-ODS钢无明显各向异性,通过TEM研究了12Cr-ODS钢的微观结构,12Cr-ODS钢中存在3种析出相:尺寸在2~5 nm纳米的超高密度的Y-Ti-O纳米团簇,烧绿石结构Y2Ti2O7纳米析出相和块状的Cr-Ti-O相。12Cr-ODS钢的室温拉伸屈服强度、抗拉强度、压缩屈服强度和抗压强度分别为856、1087、1058和1807 MPa,拉伸断口形貌观察结果表明,12Cr-ODS钢主要呈现脆性和韧性混合断裂。

关键词(KeyWords)： ODS钢;机械合金化;Y-Ti-O团簇;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划(973计划)(2011CB610405);; 国家自然科学基金(51471049,91026013);; 中央高校基本科研业务费(N120510001);; 高等学校博士学科点专项科研基金(20130042110014)

作者(Author): 徐海健,吕铮,高昊,刘春明

DOI: 10.13289/j.issn.1009-6264.2015.10.020

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