Shuang Li, Zhen Wang, Zhen Cao, Long Liu, Yang Wang
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引用次数: 0
Abstract
High-temperature wear tests on molybdenum–tungsten–vanadium steel were conducted using a universal mechanical high-temperature friction and wear testing machine. The experimental results reveal the evolutionary mechanism of high-temperature friction in the oxide layer of the steel. The oxidation wear of the test steel occurred at 700 °C with the evolution of characteristic monolayer tribo-oxidation layers on the frictional surface. The frictional oxide underwent oxide initiation - lateral growth of massive oxide - formation of frictional oxide layer - local intrusion of oxide layer into substrate - local penetration of oxide lateral growth contact. The frictional oxide evolutionary process was accompanied by a shedding of the frictional oxide surface. Carbides in the test steel prevented the tribo-oxidation layer from invading the matrix. The unique evolutionary characteristics of the tribo-oxidation layer are essential factors affecting the mechanism of maintaining slight oxidative wear.
使用通用机械高温摩擦磨损试验机对钼-钨-钒钢进行了高温磨损试验。实验结果揭示了高温摩擦在钢氧化层中的演化机理。试验钢的氧化磨损发生在 700 °C 时,摩擦表面出现了特征性的单层三氧化层演化。摩擦氧化物经历了氧化物引发--大量氧化物横向生长--摩擦氧化层形成--氧化层局部侵入基体--氧化物横向生长接触局部渗透的过程。摩擦氧化物的演变过程伴随着摩擦氧化物表面的脱落。试验钢中的碳化物阻止了三氧化层侵入基体。三氧化层独特的进化特征是影响维持轻微氧化磨损机制的重要因素。
期刊介绍:
The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering.
Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.