超洁净轴承钢中夹杂物与滚动接触疲劳寿命的关系

孙飞龙, 耿克, 俞峰, 罗海文

Relationship of Inclusions and Rolling Contact Fatigue Life for Ultra-Clean Bearing Steel

SUN Feilong, GENG Ke, YU Feng, LUO Haiwen

表2 ASPEX检测出的最大夹杂物尺寸和形貌

Table 2 Diameters and morphologies of the maximum inclusions in 24 specimens examined by ASPEX

i No.1 No.2 No.3 xi / μm Type Figure xi / μm Type Figure xi / μm Type Figure 1 5.32 Glo.-O 4.95 Glo.-O 5.79 TiN 2 5.85 TiN 5.26 Al2O3 6.57 TiN 3 6.65 TiN 5.90 TiN 6.97 TiN 4 6.92 Glo.-O 6.08 TiN 7.02 TiN 5 6.93 TiN 6.10 Al2O3 7.14 MnS 6 7.15 Al2O3 6.99 TiN 7.79 TiN 7 7.16 Sul.-O 7.89 Sul.-O 7.99 Glo.-O 8 7.19 Al2O3 7.90 Al2O3 8.24 TiN 9 7.69 TiN 7.93 TiN 9.01 TiN 10 7.99 TiN 8.19 Al2O3 9.37 TiN 11 8.94 TiN 8.61 TiN 9.40 TiN 12 9.48 Glo.-O 8.75 TiN 9.44 TiN 13 10.77 Glo.-O 8.98 MnS 10.10 TiN 14 10.96 Glo.-O 8.99 Al2O3 10.63 MnS 15 11.35 TiN 9.03 Glo.-O 11.47 TiN 16 11.82 TiN 9.08 Glo.-O 11.53 TiN 17 12.43 Glo.-O 9.13 Sul.-O 11.83 TiN 18 12.85 Glo.-O 9.32 TiN 11.88 TiN 19 14.21 Sul.-O 10.58 Glo.-O 12.37 TiN 20 14.80 TiN 10.62 Glo.-O 12.49 TiN 21 18.42 MnS 10.75 TiN 13.87 Sul.-O 22 21.59 Sul.-O 11.53 Glo.-O 14.44 Glo.-O 23 21.83 TiN 12.07 TiN 17.10 TiN 24 29.10 MnS 15.68 Glo.-O 20.98 Glo.-O