轴承钢GCr15的生物油空化腐蚀特性研究

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以5wt％乳化生物质燃油为空化介质，采用磁致伸缩仪模拟空化条件，探讨了轴承材料（Gcr15）的空化腐蚀磨损特性。结果表明：乳化生物质燃油温度升高时，射流冲击强度先增大后减小，导致轴承材料的累积失重量先增大后减小，在45℃时微射流对材料冲击破坏程度最大．空化与腐蚀磨损的双重作用也达到了最大，轴承材料的累积失重量达到峰值。

It was studied the cavitation corrosive wear of a GCr 15 bearing steel in a emulsification fuel with 5 wt% biomass oil using a magnetostrictive-induced cavitation vibratory apparatus to simulate the cavitation conditions. The results showed that the cumulative mass loss of bearing materials first increased and then decreased because of the variation of microjet impact as the temperature was increased. The microjet of fuel would cause the biggest impact wear when the fuel temperature was at 45℃. Accordingly, the cumulative mass loss and the cumulative mass loss of bearing material reached their highest values at 45 ℃.

轴承钢，GCr15，生物油，腐蚀，空化，bearingsteel，GCr15，biomass-fuel，corrosion，cavitation。

轴承钢GCr15的生物油空化腐蚀特性研究。