HEAs热化学包镀铬的扩散动力学和Rockwell-C粘附性能

IF 3.1 2区化学 Q2 CHEMISTRY, ANALYTICAL

Thermochimica Acta Pub Date : 2025-05-15 DOI:10.1016/j.tca.2025.180027

Ersan Mertgenç , Hicri Yavuz , Melih Özçatal

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引用次数: 0

摘要

在保护气体环境中采用电弧熔炼法制备的crmnnfeconi合金，在三种不同的应用温度和时间下，采用热化学方法进行表面镀铬。观察到，在高温下形成了一层平整连续的铬层，并没有随着温度的升高而出现低温时出现的铬层裂纹。根据温度和时间的不同，镀铬层厚度在4µm ~ 14µm之间。由于HEA和铬涂层中的元素，在铬层表面检测到Cr，（Cr, Ni, Fe）， Mn和Cr2O3相。计算得到铬化HEA的活化能为113.654 kJ/mol。根据Rockwell-C附着力测试，检测到的损伤类型分为HF1、HF3和HF4，确定涂层的附着力处于可接受水平。

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Diffusion kinetics and Rockwell-C adhesion properties in thermochemical pack chroming of HEAs

CrMnFeCoNi alloy produced in a protective gas atmosphere by arc melting, the surface was chromed with the thermochemical method pack chroming, at three different application temperatures and times. It was observed that a flat and continuous chrome layer was formed and the layer cracks which are present at low temperatures, did not form as the temperature increased. Depending on the temperature and time, the chrome layer thickness varies between 4 µm and 14 µm. Cr, (Cr, Ni, Fe), Mn, and Cr₂O₃ phases were detected on the chromium layer surfaces due to the elements in the HEA and the chrome coating. The activation energy value of the chromed HEA was calculated as 113.654 kJ/mol. According to the Rockwell-C adhesion test, the damage types detected were classified as HF1, HF3 and HF4, and the adhesion of the coating was determined to be at an acceptable level.

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来源期刊

Thermochimica Acta 化学-分析化学

CiteScore

6.50

自引率

8.60%

发文量

210

审稿时长

40 days

期刊介绍： Thermochimica Acta publishes original research contributions covering all aspects of thermoanalytical and calorimetric methods and their application to experimental chemistry, physics, biology and engineering. The journal aims to span the whole range from fundamental research to practical application. The journal focuses on the research that advances physical and analytical science of thermal phenomena. Therefore, the manuscripts are expected to provide important insights into the thermal phenomena studied or to propose significant improvements of analytical or computational techniques employed in thermal studies. Manuscripts that report the results of routine thermal measurements are not suitable for publication in Thermochimica Acta. The journal particularly welcomes papers from newly emerging areas as well as from the traditional strength areas: - New and improved instrumentation and methods - Thermal properties and behavior of materials - Kinetics of thermally stimulated processes