Advancements in Laser Cladding and Iron based Alloys- A Review

Abstract

This study briefs about the latest developments in Laser Cladding and alloying process which helps improving the surface properties of substrate. Laser cladding is one of the material deposition technique which helps in lengthening the surface life of Base materials in power generation industries. A thick layer of materials which helps in improving the substrate properties deposited. It helps in enhancing the mechanical properties like wear, corrosion resistance, hardness. Laser cladding in comparison to other deposition techniques provides better powder efficiency, low distortion due to low power requirement, good surface uniformity, better binding property. Independent metal alloys, ceramics, composites are used to enhance the surface of the material used. Iron based alloys are the most common alloy with better mechanical properties, other independent metal alloys like aluminum alloy, nickel alloy, tungsten alloy can be used. In this review, the study of iron based alloys for laser cladding has been explained. Also, the effecting laser parameters on microstructure, material composition, mechanical properties and thermal properties are considered. The material characterization techniques like XRD, SEM, XPS, DSC, scratch test, corrosion & erosion test are discussed. The issue emerges and the possibilities in Laser cladding for Iron based alloyed are briefed.