OSCILLATING SLIDING WEAR OF TIC AND TIN LASER HARDFACINGS

被引:3
作者
SCHUSSLER, A
ZUMGAHR, KH
机构
[1] Kernforschungszentrum Karlsruhe, Institut Für Material- Und Festkörperforschung I, Karlsruhe, 7500
关键词
D O I
10.1002/mawe.19910220103
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
TiC- and TiN-steel composite layers containing about 40-60 vol.% of hard phases were produced on a die steel 90MnCrV8 using a CO2-laser. Resulting layers consisted of homogeneously distributed hard particles (median size: 3-mu-m and 31-mu-m) embedded in a martensitic matrix and exhibited low surface roughness. Resistance to oscillating sliding wear was measured using a laboratory tribometer (ball on disc) with counterbodies of bearing steel and Al2O3, respectively. Both friction and wear of composites were substantially lower than that of the hardened untreated steel. Wear intensity depended on type and size of incorporated hard particles of the composite layer.
引用
收藏
页码:10 / 14
页数:5
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