Friction and wear characteristics and simulation study of NM500 lining plate in ball mill under different load conditions

IF 4.4 3区工程技术 Q1 ENGINEERING, CIVIL

Archives of Civil and Mechanical Engineering Pub Date : 2024-09-12 DOI:10.1007/s43452-024-01037-x

Guanghui Zhao, Zhimin Liu, De Dong, Juan Li, Lifeng Ma, Yufang Wang

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Abstract

Friction and wear test equipment, scanning electron microscope, abrasion balls made of CGr15 high carbon chromium bearing steel, and liners made of NM500 steel were used for wear simulation and friction–wear experiments. The variation trends of friction coefficient, wear amount, and sub-surface characteristics under dry friction and slurry conditions were studied. Simulations supported the research results. The results show that the pressure and the coefficient of friction vary inversely. The coefficient of friction between the abrasive ball and the lining plate decreases with the increase of the load. Samples subjected to a pressure of 120N have higher values of Kernel Average Misorientation (KAM) and lower recrystallization ratios compared to samples subjected to a pressure of 130N. In a slurry environment, the difference in wear surface depth decreases to 0 μm (120N) and 5 μm (130N). This change indicates that the presence of the slurry alters the wear characteristics of the surfaces, leading to a reduction in the depth difference between the surfaces under different load conditions. This observation highlights the importance of considering the influence of the slurry environment on friction and wear behavior in simulations and experiments.

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不同载荷条件下球磨机中 NM500 衬板的摩擦磨损特性及模拟研究

使用摩擦磨损试验设备、扫描电子显微镜、由 CGr15 高碳铬轴承钢制成的磨球和由 NM500 钢制成的衬板进行磨损模拟和摩擦磨损实验。研究了干摩擦和泥浆条件下摩擦系数、磨损量和表面下特征的变化趋势。模拟支持了研究结果。结果表明，压力和摩擦系数成反比变化。研磨球和衬板之间的摩擦系数随着载荷的增加而减小。与 130N 压力下的样品相比，120N 压力下的样品具有更高的内核平均倾角（KAM）值和更低的再结晶比率。在泥浆环境中，磨损表面深度的差异降至 0 μm（120N）和 5 μm（130N）。这一变化表明，泥浆的存在改变了表面的磨损特性，导致不同载荷条件下的表面深度差减小。这一观察结果突显了在模拟和实验中考虑泥浆环境对摩擦和磨损行为影响的重要性。

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来源期刊

Archives of Civil and Mechanical Engineering 工程技术-材料科学：综合

CiteScore

6.80

自引率

9.10%

发文量

201

审稿时长

4 months

期刊介绍： Archives of Civil and Mechanical Engineering (ACME) publishes both theoretical and experimental original research articles which explore or exploit new ideas and techniques in three main areas: structural engineering, mechanics of materials and materials science. The aim of the journal is to advance science related to structural engineering focusing on structures, machines and mechanical systems. The journal also promotes advancement in the area of mechanics of materials, by publishing most recent findings in elasticity, plasticity, rheology, fatigue and fracture mechanics. The third area the journal is concentrating on is materials science, with emphasis on metals, composites, etc., their structures and properties as well as methods of evaluation. In addition to research papers, the Editorial Board welcomes state-of-the-art reviews on specialized topics. All such articles have to be sent to the Editor-in-Chief before submission for pre-submission review process. Only articles approved by the Editor-in-Chief in pre-submission process can be submitted to the journal for further processing. Approval in pre-submission stage doesn''t guarantee acceptance for publication as all papers are subject to a regular referee procedure.