中低碳Fe-Cr合金钢冲击腐蚀磨损行为研究  

Study on the Impact Corrosive-Wear Behavior of Fe-Cr Alloy Steels Containing Low and Medium Carbon

作　　者：李惠 郑志斌 龙骏 郑开宏 王娟 

机构地区：[1]广东省材料与加工研究所,广东广州510650 [2]广东省金属强韧化技术与应用重点实验室,广东广州510650

出　　处：《铸造》2018年第1期1-5,共5页Foundry

基　　金：广东省科学院创新驱动发展能力建设专项资金项目(2017GDASCX-0859);中山市广东省科学院技术转移专项经费(2016F1FC0003);广东省省级科技计划项目公益研究与能力建设(2017A070702020);广东省科学院院属骨干科研机构创新能力建设专项项目(2017GDASCX-0117)

摘　　要：针对矿山湿磨用球磨机衬板设计了一组中低碳合金钢。表征了其组织和基本力学性能,利用冲击腐蚀磨损试验机及扫描电镜对合金钢的服役行为及机理进行了探究。结果表明,合金钢的硬度随碳含量的增大而线性增大,冲击韧性恶化。在模拟铜矿浆中该类合金钢的耐冲击腐蚀磨损性能比高锰钢更优异。当碳含量过高,脆性及耐蚀性差使其综合服役性能恶化,冲击-腐蚀-磨损的综合作用是其服役损伤的主要原因。The Fe-Cr alloy steels containing low/medium carbon were developed for lining plate of ball mill working under wet grinding. Microstructure and mechanical properties have been evaluated. Additionally, the service behavior and mechanism of the alloy steels were analyzed by an impact corrosive-wear tester and scanning electron microscope. The results show that the hardness of alloy steel increased linearly with the increase of carbon content, while the impact toughness deteriorated. The low/medium Fe-Cr alloy steels in simulated copper slurry exhibited higher impact corrosive-wear resistance than high manganese steel. While the content of carbon was too high, poor brittleness and corrosion resistance resulted in the deterioration of comprehensive performance. The damage mechanism of this type of low/medium Fe-Cr alloy steel was the synergistic effect of impact, corrosion and wear.

关 键 词：中低碳合金钢 湿磨衬板 冲击腐蚀磨损 碳含量 

分 类 号：TD453[矿业工程—矿山机电] TG172[金属学及工艺—金属表面处理]