车轮剥离性能试验研究
Experimental Investigation on Spalling ofRailway CarW heels
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摘要:在JD-1型轮轨摩擦模拟试验机上,在赫兹接触条件下,对4种不同含碳量车轮轮箍钢的剥离和磨损性 能进行了试验研究.结果表明:磨损量随含碳量的增加而减小;含碳量越高,剥离程度越严重,剥离块越大;降低 含碳量,可减轻剥离的发生,但同时会增加车轮的磨损量.Abstract:Spalling and wear behaviors of four kinds of wheel steels with different carbon concentrationswere investigated on JD-1 wheel-rail simulating testmachine underHertzian contact condition. The results show tha,t with an increase in carbon concentration, thewear volume ofwheel decreases; but the degree of spalling increases with larger fragments; and decreasing carbon concentration alleviate spalling, but increaseswear volume of the specimens.
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Key words:
- spalling/
- wear/
- carbon content/
- hardness/
- wheel
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