XRD Observation on the Weld Metal of Resurfaced Rail Steel

IF 0.6 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Chiang Mai Journal of Science Pub Date : 2023-07-31 DOI:10.12982/cmjs.2023.036

P. Muangjunburee, Nutchanon Poolsiri, Sasirat Chaideesungnoen, Ammarat Naultem, Hein Zaw Oo, M. Kongpuang

引用次数: 0

Abstract

The current research studied two samples of rail steel grade 900A deposited with different electrodes, namely, electrodes A and B, using the Shielded Metal Arc Welding (SMAW) process. This research fi nds out the suitable hardness values of the various electrodes. The phase identifi cation and microstructural analysis of weld metal were conducted using X-ray diffraction (XRD) and an optical microscope, respectively. The micro-hardness profi les along the cross-section of the weldment were acquired using a micro-Vickers hardness tester, and a Brinell hardness tester measured the hardness values on the top surface of the weld metal. According to the results, the diffraction angles of the XRD patterns for all weld metal samples differed due to their distinct microstructures. The microstructure of the weld metal, in particular, produced the primary infl uence on the hardness

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堆焊轨道钢焊缝金属的XRD观察

本研究采用屏蔽金属电弧焊(SMAW)工艺，对两种不同电极(即电极A和电极B)沉积的轨道钢等级900A试样进行了研究。本研究找出了各种电极的合适硬度值。利用x射线衍射仪(XRD)和光学显微镜对焊缝金属进行物相鉴定和显微组织分析。采用显微维氏硬度计获得焊件横截面的显微硬度分布图，用布氏硬度计测量焊缝金属顶表面的硬度值。结果表明，由于焊缝金属的显微组织不同，其XRD衍射图的衍射角也不同。焊缝金属的显微组织是影响硬度的主要因素

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

Chiang Mai Journal of Science MULTIDISCIPLINARY SCIENCES-

CiteScore

1.00

自引率

25.00%

发文量

103

审稿时长

3 months

期刊介绍： The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.