Influence of Vanadium-Chromium Carbide on the Microstructure of Reinforced FeCrV15 Hardfacing during Laser Cladding Deposit

Abstract

The increasing manufacturing technologies is a crucial aspect of industrialization. Laser additive manufacturing is the process of manufacturing using laser (heat) technology to manufacture component from scratch and or strengthening and modi cation of surfaces that are subject to abrasion. The combination of both Chromium Carbide (CrC) and Vanadium Carbide reinforced iron based hard facings have gotten progressively signi cant in enhancing the corrosion and wear resistance of tool subject to adverse abrasive and impact conditions. This study investigates the effect of vanadium-chromium carbide on the microstructure of the clad with respect to its laser processing parameters.

Influence of extra chromium addition on the microstructure, hardness, and corrosion behaviour of high carbon ferrochrome FeCrV15 deposited through laser cladding on steel baseplate for tillage application

“…The SEM micrographs of the samples are represented in figure 5. As identified by [4,25], the primary vanadium carbides VCs is the 'fishbone or rodlike precipitate and the star-flower-like structure', see position 1 in figures 5 and 6. Position 2 represent the agglomeration of eutectic VCs precipitate forming primary VCs.…”

“…This wellcontrolled heat-affected zone resulted from high power and focused laser light which caused the substrate's rapid heating and cooling effect [2,3], which minimally affects the distinctive property of the material. In addition, the heat-affected zone can be monitored and enhanced during this cycle, which may increase the material's strength [4]. Laser cladding likewise delivers energy that could be adjusted over the outer part of the material regulating the pace of solidification, and this is the essential factor in the development of microstructure and mechanical properties [5].…”

“…Cai et al [23] detailed that a reasonable measure of Cr could enhance microstructure, upgrade hardness, and could likewise fundamentally increase corrosion and wear resistance of Ni 2 Si and NiSi laser cladding coatings [6]. High carbon ferrochrome FeCrV15 has been found to upgrade both the microstructure, hardness [24] and wear resistance of the steel baseplate. The current study seeks to investigate the effect of extra addition of chromium on the microstructure, hardness, and corrosion resistance of high carbon ferrochrome FeCrV15 clad for agricultural and mining applications.…”

The Effect of the Dilution Level on Microstructure and Wear Resistance of Fe-Cr-CV Hardfacing Coatings Deposited by PTA-P

“…Researchers have reported that the process temperature significantly impacts the VC size and formation when using laser cladding to perform vanadium-added Fe-Cr-C coatings (V = 15%) [25]. Using the modified GMAW [26] welding process with a hot wire (Fe-CrC-12%V alloy) inserted into the weld pool, it was possible to control the energy input and the amount of deposited material.…”

“…and carbon (>2%wt.) in [25] provided high wear resistance due to the amount, morphology, and distribution of VC in the matrix. When comparing the average areas of the precipitates of the coatings, for the substrate thickness of 12.5 mm, the average area of the precipitates was 1.2 µm 2 without showing coarse carbide structures.…”