滚动轴承钢冶金质量与疲劳性能现状及高端轴承钢发展方向

俞峰,陈兴品,徐海峰,董瀚,翁宇庆,曹文全

Current Status of Metallurgical Quality and Fatigue Performance of Rolling Bearing Steel and Development Direction of High-End Bearing Steel

Feng YU,Xingpin CHEN,Haifeng XU,Han DONG,Yuqing WENG,Wenquan CAO

表1 轴承钢主要钢种的现状与发展

Table 1 The main steel grades of bearing steels

Generation Characteristics The main material The main performance The first Normal temperature (≤150 ℃) GCr15 High hardness, wear resistance 9Cr18(Mo) High hardness, corrosion resistance G20CrNi2Mo Impact resistance 42CrMo, G55Mn Both strength and toughness The second Elevated temperature (≤350 ℃) 8Cr4Mo4V High hardness, high wear resistance, temperature resistance G115Cr14Mo4V High hardness, temperature resistance, corrosion resistance G13Cr4Mo4Ni4V Temperature resistance, impact resistance The third Elevated temperature and corrosion G13Cr14Co12Mo5Ni2 High strength and toughness, resistance (350~500 ℃) high temperature resistance, corrosion resistance G30Cr15MoN High hardness, high corrosion resistant The fourth Light weight material 60NiTi, GCr15Al Low density, temperature resistance, density ρ≤6.7 g·cm-3 high corrosion resistance