摘要
采用金相和剥层分析法对20Cr2Ni4A钢齿轮浅层渗碳处理工艺进行研究。结果表明,采用860℃渗碳,经淬火＋低温回火处理后,渗碳层厚度为0.6～0.8 mm,表面硬度为58～62 HRC,心部硬度为35～47 HRC,所得金相组织符合标准要求。
The shallow layer carburizing of 20Cr2Ni4A steel gears were studied using metallography and skiving layer analysis. The results show that the thickness of carbttrizing layer is 0.6-0.8 mm, and the hardness of surface and core are 58-62 HRC and 45-49 HRC, respectively. Metallographic structure meting standard requirements and the ideal distribution of carbon content are obtained by carburizing and hardening at 860 ℃.
出处
《铸造技术》
CAS
北大核心
2015年第11期2646-2648,共3页
Foundry Technology
关键词
浅层渗碳
齿轮
金相组织
shallow layer carburizing
gears
metallographic structure
