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研究了激光表面熔化处理的球墨铸铁试样在石英浆料中的冲刷腐蚀特性 .结果表明 ,经过激光表面处理的球墨铸铁与原球墨铸铁相比具有很高的硬度和较好的耐冲蚀磨损性能 ,当冲刷角度为 0°、冲刷速度在 0 .5 8～ 4.47m/ s范围内时 ,激光处理试样的耐磨性是球墨铸铁试样的 3倍以上 ;冲刷角度对激光处理球墨铸铁的冲蚀磨损性能有很大的影响 ,激光试样的磨损质量损失随着冲刷角度的增大而增加 ,当冲刷角度为 45°时 ,激光试样与球墨铸铁试样的单位磨损质量损失已很接近 ;在 p H值处于 4～ 7的范围内 ,激光处理试样的耐腐蚀磨损性能为球墨铸铁的 2～ 3倍
The results show that the ductile iron with laser surface treatment has higher hardness and better erosion resistance than the original ductile iron Performance, when the erosion angle of 0 °, the erosion rate of 0. 58 ~ 4.47m / s range, the wear resistance of laser-treated samples is more than 3 times the sample of ductile iron; erosion angle of the laser treatment of ductile iron The erosion loss of the laser sample increases with the increase of the erosion angle. When the erosion angle is 45 °, the wear loss per unit mass of the laser sample and the ductile iron sample has been Very close; in the p H value in the range of 4 to 7, the corrosion resistance of the laser-treated samples wear resistance of ductile iron 2 to 3 times