胡君杰,梁益龙,邹雄,姜云,钟丽琼

• 1:贵州大学材料与冶金学院
• 2:贵州省材料结构与强度重点实验室
• 3:贵州省高性能金属结构材料与制造技术工程实验室
• 4:高性能金属结构材料与制造技术国家地方联合工程实验室

摘要(Abstract)：

研究了超声滚压(SURP)预处理对60Si2CrVAT弹簧钢热处理过程中脱碳层产生的影响规律。研究结果表明,SURP预处理会显著降低弹簧钢脱碳层厚度,不仅总脱碳层厚度有所降低,全脱碳层厚度也有所降低,且随着滚压次数的增加脱碳层厚度呈降低趋势。SURP预处理造成弹簧钢脱碳层厚度降低的机制为:热轧态弹簧钢经SURP处理后表层形成了铁素体形变织构,在后续的淬火保温过程中,织构具有相变遗传性,使碳原子晶界扩散受阻,扩散激活能增大,扩散系数降低,从而减缓碳原子扩散速度,导致脱碳层厚度降低。

关键词(KeyWords)： 60Si2CrVAT;脱碳;超声滚压;相变织构;扩散

Abstract:

Keywords:

基金项目(Foundation): 贵州省科技计划项目(黔科合JZ字[2014]2003,黔科合重大专项字(2014)6012);; 贵州省科学技术基金(黔科合LH字[2015]7464号)

作者(Author): 胡君杰,梁益龙,邹雄,姜云,钟丽琼

DOI: 10.13289/j.issn.1009-6264.2016-X355

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