Plasma Nitriding Behavior of DIN 1.2344 Hot Work Tool Steel

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-12-10 DOI:10.22068/IJMSE.17.4.1

S. Karimzadeh, F. Mahboubi, G. Daviran

引用次数: 3

Abstract

In the present investigation the effect of time and temperature on plasma nitriding behavior of DIN 1.2344 (AISI H13) steel is studied. Pulsed plasma nitriding process with a gas mixture of N2 = 25% + H2 = 75% and duty cycle of 70% is applied to cylindrical samples of DIN 1.2344 hot worked tool steel. X-ray diffraction, surface roughness, microhardness and ball on disc wear tests are performed and the behavior of plasma nitrided samples are compared. Scanning electron microscopy and optical microscopy are used in order to observe the microstructure of samples after nitriding. XRD results showed that the compound layer consists of dual phase. Hardness near the surface dropped by rising the process temperature and it increased with longer process duration. The comparison of μ results showed that, frictional properties at longer duration and lower temperature is similar to higher temperature and shorter duration.

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DIN 1.2344热作工具钢的等离子体氮化行为

研究了时间和温度对DIN1.2344（AISI H13）钢等离子体氮化行为的影响。将N2＝25%+H2＝75%的气体混合物和70%的占空比的脉冲等离子体氮化工艺应用于DIN 1.2344热加工工具钢的圆柱形样品。进行了X射线衍射、表面粗糙度、显微硬度和球盘磨损试验，并对等离子体氮化样品的行为进行了比较。使用扫描电子显微镜和光学显微镜观察氮化后样品的微观结构。XRD结果表明，该化合物层由双相组成。表面附近的硬度随着工艺温度的升高而下降，并且随着工艺持续时间的延长而增加。μ结果的比较表明，在较长的持续时间和较低的温度下，摩擦性能与较高的温度和较短的持续时间相似。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.