The Effect of Niobium Addition on the Operational and Metallurgical Behavior of Fe-Cr-C Hardfacing Deposited by Shielded Metal Arc Welding

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2024-02-10 DOI:10.3390/jmmp8010038

Jaime Perez, Jesus Gutierrez, J. Olaya, Oscar Piamba, A. Scotti

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引用次数: 0

Abstract

Hardfacing is commonly used in parts recovery and in obtaining surfaces with improved properties. Within this field, it is important to analyze the effect of alloying elements on the properties of the deposited layers. One of the critical parameters affecting alloying performances in SMAW is improper arc length. This article examines the effect of the addition of niobium in different quantities (0, 2, 4, 6, and 8% by weight) to the electrode coating in Fe-Cr-C shielded metal arc welding (SMAW), with short and long arc lengths, on the operational process efficiency, dilution, arc energy, microstructure, and microhardness of the deposited layers. A decrease in operational process efficiency and dilution was found with increases in niobium content. On the other hand, it was found that adding niobium leads to a refinement in chromium carbide sizes, directly affecting the hardness of the obtained deposits. There is a direct relationship between the arc energy, with both short and long arc lengths, leading to a tendency to decrease the dilution in the obtained hardfacing.

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添加铌对通过金属保护弧焊沉积的 Fe-Cr-C 硬面的操作和冶金性能的影响

硬面堆焊通常用于零件修复和获得性能更好的表面。在这一领域，分析合金元素对沉积层性能的影响非常重要。影响 SMAW 合金性能的关键参数之一是不适当的电弧长度。本文研究了在长短弧长的铁铬钴金属保护电弧焊（SMAW）中，在电极涂层中添加不同数量（0、2、4、6 和 8%（重量百分比））的铌对熔敷层的操作流程效率、稀释、电弧能量、微观结构和显微硬度的影响。随着铌含量的增加，操作流程效率和稀释度都有所下降。另一方面，研究发现铌的添加会导致碳化铬尺寸的细化，从而直接影响所获得沉积层的硬度。电弧能量与短电弧和长电弧长度之间存在直接关系，导致所获得硬面的稀释度呈下降趋势。

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

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico