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Cavitation erosion-corrosion resilient surfaces through reciprocating friction processing
Wear ( IF 5 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.wear.2020.203385
H.S. Arora , S. Pradhan , A. Kumar , G. Perumal , R. Salloom , S. Mukherjee , H.S. Grewal

Abstract Here, an excellent cavitation erosion-corrosion resistance of stainless steel using a novel severe surface deformation technique, reciprocating friction processing (RFP) was demonstrated. The RFP treated stainless steel showed nano-grained, nano-twinned microstructure along with high dislocation density. The RFP treated steel significantly surpassed the performance of advanced structural materials including high entropy alloy (Al0.1CoCrFeNi) and complex concentrated alloy (SiC reinforced Al0.1CoCrFeNi), demonstrating the lowest cavitation erosion and cavitation erosion-corrosion rates for this class of materials. The RFP treated steel demonstrated outstanding corrosion behavior in 3.5% NaCl solution as well. The unusual performance of RFP treated steel is attributed to its excellent mechanical strength and strong passivating behavior.

中文翻译:

通过往复摩擦加工形成气蚀腐蚀弹性表面

摘要 在这里,使用一种新型的严重表面变形技术,往复摩擦加工 (RFP),证明了不锈钢具有优异的抗气蚀腐蚀能力。RFP 处理的不锈钢显示出纳米晶粒、纳米孪晶微观结构以及高位错密度。经过 RFP 处理的钢材的性能显着超过了包括高熵合金 (Al0.1CoCrFeNi) 和复杂浓缩合金(SiC 增强的 Al0.1CoCrFeNi)在内的先进结构材料的性能,表明此类材料的气蚀和气蚀腐蚀率最低。RFP 处理的钢在 3.5% NaCl 溶液中也表现出出色的腐蚀行为。RFP 处理钢的不寻常性能归功于其出色的机械强度和强大的钝化行为。
更新日期:2020-09-01
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