袁兴栋,许斌,蔡玉成

• 1:山东建筑大学材料科学与工程学院

摘要(Abstract)：

研究了淬火处理对45钢表面硼铬稀土低温共渗的影响,淬火处理保温时间分别为20、30和40 min,共渗工艺分别为600℃×6 h和650℃×6 h。利用电子扫描电镜观察共渗层形貌特征,利用电子显微硬度计测定共渗层的显微硬度。结果表明,经淬火处理的试样共渗层厚度明显增加,不具有明显的梳齿状,组织致密均匀;共渗温度为600℃时,共渗层厚度随淬火处理过程中保温时间延长先增加后减小,分别增加了45.5%、72.7%、18.2%;共渗温度为650℃时,共渗层厚度具有同样变化趋势,分别增加了50%、62.5%、18.8%;淬火处理试样与未淬火处理试样共渗层的硬度分布趋势一致,从最外层开始,先增大后减小。

关键词(KeyWords)： 淬火处理;45钢;硼铬稀土共渗;低温

Abstract:

Keywords:

基金项目(Foundation): 山东省高等学校科技计划项目(J12LA11)

作者(Author): 袁兴栋,许斌,蔡玉成

DOI: 10.13289/j.issn.1009-6264.2015.09.035

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