Effect of Metallographical Factors on the Rolling Fatigue Life of Ball Bearing Steel
Effect of Metallographical Factors on the Rolling Fatigue Life of Ball Bearing Steel
复制标题
金相因素对滚珠轴承钢滚动疲劳寿命的影响
DOI：
10.2355/tetsutohagane1955.54.13_1353
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发表时间：
1968
影响因子：
0.3
通讯作者：
Shozo Watanabe
中科院分区：
文献类型：
--
作者：
Saburō Shikō;Kazuo Okamoto;Shozo Watanabe
摘要：研究了金相因素对1%C-1.5%Cr轴承钢滚动疲劳寿命的影响，探讨了对轴承寿命最有利的成分。结果表明：(1)影响轴承钢轧制疲劳寿命的金相因素不是残余渗碳体的数量和尺寸，而是基体中溶解的化学成分。(2)影响轧制疲劳寿命最有效的因素是基体中的碳含量，基体中最理想的碳含量为0 ~ 5%左右。(3)剥落机理与马氏体回火的第三阶段有关。这是通过对循环应力区微观组织的透射电镜观察和一种高硅新型钢的轴承寿命试验结果得出的，该钢的第三阶段起始温度由硅提高。（1968年7月3日收到）
Synopsis: Effect of metallographical factors on the rolling fatigue life of 1%C-1.5%Cr bearing steel was investigated, and the most profitable component for the bearing life was discussed. The results obtained are as follows: (1) Metallographical factors affected on the rolling fatigue life of bearing steel were not amount and size of residual cementite but the chemical compositions soluted in fhe matrix. (2) The most effective factor affected on the rolling fatigue life was carbon content soluted in the matrix and the most desirable carbon content in the matrix was about 0'5 percent. (3) It was recognized that the mechanism of flaking was related to the third stage of the tempering of martensite. This was deduced from the observation of the micro-structure of cyclic stressed area by the transmission electron microscopy and the result of bearing life test of a new type steel with higher silicon of which the starting temperature of the third stage was rised by silicon. (Received July 3, 1968)