A Comparative Assessment of Chromium-Boron Hardfacing Using SMAW and FCAW Techniques.

Q2 Environmental Science The Scientific World Journal Pub Date : 2024-10-28 eCollection Date: 2024-01-01 DOI:10.1155/2024/4943983

Chowda Reddy C, K M Kenchi Reddy, C T Jayadeva, Ramesh Kumar S C, R Vara Prasad Kaviti, Abhijit Bhowmik, Chander Prakash

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Abstract

This research paper investigates the effectiveness of shielded metal arc welding (SMAW) and flux-cored arc welding (FCAW) on mild steel substrates for chromium-boron hardfacing. Chromium-boron alloys are hard-wearing and corrosion-resistant materials used in industries where wear resistance is critical. The study aims to identify the best welding technique for increasing surface hardness and wear resistance. Standard test specimens were chosen and deposited using SMAW and FCAW processes. SMAW uses an electrode covered with flux, which turns into a sticky state when heated, while FCAW uses a core wire fabricated from flux, which generates a shielded gas upon melting. The effectiveness of each welding technique is assessed based on deposition efficiency, dilution rate, microstructure, hardness distribution, and wear resistance. This research helps industries choose the most efficient material and method for improving wear and corrosion resistance in applications like mining, construction, agriculture, and manufacturing. On average, FCAW offers a 1.67% improvement in hardness and 28.12% improvement in mass loss reduction when compared to SMAW.

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使用 SMAW 和 FCAW 技术对铬硼硬面堆焊进行比较评估。

本研究论文探讨了在低碳钢基材上采用保护金属弧焊（SMAW）和药芯弧焊（FCAW）进行铬硼硬面堆焊的效果。铬硼合金是一种耐磨、耐腐蚀的材料，用于对耐磨性要求极高的行业。这项研究旨在确定提高表面硬度和耐磨性的最佳焊接技术。我们选择了标准试样，并使用 SMAW 和 FCAW 工艺进行熔敷。SMAW 使用焊剂覆盖的电极，焊剂在加热时会变成粘稠状态，而 FCAW 使用焊剂制成的芯线，焊剂在熔化时会产生保护气体。每种焊接技术的有效性都是根据沉积效率、稀释率、微观结构、硬度分布和耐磨性来评估的。这项研究有助于各行业选择最有效的材料和方法，以提高采矿、建筑、农业和制造业等应用领域的耐磨性和耐腐蚀性。与 SMAW 相比，FCAW 平均可提高 1.67% 的硬度，减少 28.12% 的质量损失。

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来源期刊

The Scientific World Journal 综合性期刊-综合性期刊

CiteScore

5.60

自引率

0.00%

发文量

170

审稿时长

3.7 months

期刊介绍： The Scientific World Journal is a peer-reviewed, Open Access journal that publishes original research, reviews, and clinical studies covering a wide range of subjects in science, technology, and medicine. The journal is divided into 81 subject areas.