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1.前言长期以来,用各种表面强化方法提高机械零件和工模具的耐磨性,渗碳和渗氮是两种应用最广泛的方法。近二十年来,在工业的许多领域中,渗硼也日益成为一种有效的抗磨损方法。在钢表面上渗钒能生成高硬度(约HV_(0.2)2500)的渗层,可获得优异的摩擦学性能,但有关的细节迄今尚未充分了解。关于耐磨性应当有相对条件的概念。因此,介绍各种表面强化方法在粘着磨损、摩擦氧化磨损、磨料磨损和表面疲劳磨损等条件下的抗磨损能力,以及在有无润滑剂条件下进行不同强化表面配对磨损试验的结果,
1. INTRODUCTION For a long time, various surface hardening methods have been used to improve the wear resistance of mechanical parts and tooling. Carburizing and nitriding are the two most widely used methods. In the last two decades, boronizing is also increasingly becoming an effective anti-wear method in many areas of industry. Vanadium infiltration on the steel surface produces a high hardness (about HV_ (0.2) 2500) of the infiltrated layer giving excellent tribological properties, but the details have not yet been fully understood. There should be a relative concept of wear resistance. Therefore, the anti-wear abilities of various surface strengthening methods under such conditions as adhesive wear, tribological oxidation wear, abrasive wear and surface fatigue wear, as well as the results of paired wear tests of different strengthened surfaces in the presence or absence of lubricants,