利用改造的MLD10型冲击磨损实验机，在铁矿石酸性矿浆中，冲击功分别为07 J，12 J，17 J条件下，研究了锰的质量分数为2%的以锰代镍低碳高合金钢的冲击腐蚀磨损行为。通过对试样表面磨损形貌的扫描电镜观察和垂直于磨损表面的亚表层的光学金相分析可知，随冲击功的加大，该钢的冲击腐蚀磨损机制由单一的冲击载荷下的显微切削机制逐渐转变为腐蚀条件下的微观冲击剥落机制，最终演化为疲劳腐蚀磨损机制。
For three different impact energies (07 J,12 J,17 J), low carbon high alloy steel replaced nickel with manganese (wMn=2%) were tested with a modified MLD10 wear tester to investigate their behavior of corrosive impact abrasion. Through the SEM observation of the worn surface and the subsurface optical metallographic analysis of the sample, with of increasing the impact energy, the impact corrosion and abrasion mechanism of low carbon high alloy steel replaced nickel with manganese is transformed from single microcutting under corrosive condition to impactflaking, and at last changed into the fatigue corrosion and spalling mechanism.
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