A Surface Conversion Treatment on a Borided and Cemented Seel Coated with Chromium Filme

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-09-10 DOI:10.22068/IJMSE.2150

Rabah Bobaaya, O. Allaoui, M. Djendel, Samir Benaniba

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引用次数: 0

Abstract

Coatings based on chromium borides and chromium carbides are commonly employed in applications requiring high hardness, low friction coefficient, as well as corrosion resistance. In this work, we made layers of chromium borides and chromium carbides on the surface of low carbon steel through some specific treatments. For chromium borides, the boriding treatment in a solid medium at 900°C for 4 h was followed by chromium electroplating on the steel surface and finally the application of annealing treatment at 950°C for 1 and 2 h. For chromium carbides, the cementation in a solid medium was followed by electroplating of chromium on the surface and finally the application of annealing treatment in the temperature range between 500 and 1100°C for 1 h. The results showed that, in the first case, boron diffusion and chromium deposition led to chromium borides on the treated surface. Similarly, for the second case, the cemented layer and the chromium deposited on the surface combined to form chromium carbides on the treated surface after annealing. The characteristics of the chromium borides and chromium carbides obtained were very similar to those of chromium borides and chromium carbides obtained by other processes.

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包覆铬膜的渗硼和胶结钢板的表面转化处理

基于硼化铬和碳化铬的涂层通常用于要求高硬度，低摩擦系数以及耐腐蚀性的应用中。在这项工作中，我们通过一些特殊的处理，在低碳钢表面制备了一层硼化铬和碳化铬。铬硼化,渗硼处理在900°C固体培养基4 h随后铬电镀钢表面,最终退火处理的应用在950°C 1和2 h。铬碳化物,固体培养基中的胶结之后,表面电镀铬和最终退火处理的应用温度范围500到1100°C的1 h。结果表明,在第一种情况下,硼的扩散和铬的沉积导致处理表面形成硼化铬。同样，对于第二种情况，经退火后，胶结层与表面沉积的铬结合在处理表面上形成碳化铬。所得的硼化铬和碳化铬的特性与其他工艺所得的硼化铬和碳化铬非常相似。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.