双层孔隙铁基粉末冶金材料可控制备及自润滑机理分析

张国涛,尹延国,童宝宏,张兴权

Controllable Preparation and Self-Lubricating Mechanism Analysis of Bilayer Porous Iron-Based Powder Metallurgy Materials

Guotao ZHANG,Yanguo YIN,Baohong TONG,Xingquan ZHANG

表2 TiH₂含量对表层材料性能的影响

Table 2 Effect of TiH₂ contents on the properties of surface layer materials

TiH₂ content %	Oil ratio %	Hardness HRB	Crushing strength MPa
0	13.4	54	852
2	16.4	58	816
2.5	17.6	61	789
3	18.3	63	781
3.5	18.7	65	762
4	19.2	66	753