55SiCr弹簧钢脱碳与氧化行为研究  

Behavioral Research on Decarburization and Oxidation of the 55SiCr Spring Steel

作　　者：鲁修宇[1,2] 吴超 罗德信 戴明杰[2] 任安超 蒋跃东 

机构地区：[1]武汉钢铁(集团)研究院,湖北武汉430080 [2]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《热处理技术与装备》2016年第2期63-66,共4页Heat Treatment Technology and Equipment

摘　　要：氧化脱碳是影响55Si Cr弹簧钢表面质量的主要因素,本文研究了不同加热温度、加热时间、加热方式对55Si Cr弹簧钢组织中氧化脱碳特征的影响。试验结果表明,1100℃时材料的总脱碳层深度达到最大值,超过1100℃时,总脱碳层深度逐渐减少,1100℃为55Si Cr弹簧钢的脱碳敏感温度。全脱碳层深度在800℃时达到最大值,高于950℃后,全铁素体脱碳层深度趋于稳定。加热温度对脱碳层深度的影响比保温时间的影响更加明显。Oxidation and decarburization are the main factors to influence the surface quality of 55 Si Cr spring steel. The effect of different heating temperature,heating time and heating way on the characteristic about oxidation and decarburization of 55 Si Cr spring steel was studied in this paper. The results show that the total decarburized layer depth of the sample reaches the maximum at 1100 ℃,and the total decarburized layer depth decreased gradually above 1100 ℃,so 1100 ℃ is the sensitive temperature for decarburization of 55 Si Cr spring steel. The depth of full decarburization layer reaches a maximum at 800 ℃,and the full ferritic decarburized depth tends to stabilization above 950 ℃. The effect of heating temperature on decarburized layer depth is more obvious than holding time.

关 键 词：55Si Cr弹簧钢 脱碳 氧化 加热 

分 类 号：TG142.1[一般工业技术—材料科学与工程]