The effect of Si and B on formability and wear resistance of preset-powder laser cladding W10V5Co4 alloy steel coating

Underlying Mechanism for “Loss of Passivation” Effect of a High-Carbon Martensitic Stainless Steel Coating via Laser Cladding

“…Generally, due to the high content of C, HMSS displays poor weldability [23,24] , and larger tendency of cracking when processed with highenergy beam, which also restrains the application of HMSS coatings by coaxial LC techniques. Preset-powder laser cladding hence become the effective solution of endowing good formability for HMSS cladding coating, since it allows the powder, which is uniformly covered on the surface of the substrate, to be melted by high power laser energy and then quickly solidi ed, thus reducing the dilution rate of the clad layer, and reducing the tendency to cracking and distortion [25,26] . Due to the insu cient studies of HMSS coating and its pitting performance and the elusive underlying mechanisms for pitting of HMSS coating, we, in this work, prepared a X818 HMSS coating via laser cladding on Q235 steel (in Chinese grade) substrate.…”

“…Preset-powder laser cladding hence become the effective solution of endowing good formability for HMSS cladding coating, since it allows the powder, which is uniformly covered on the surface of the substrate, to be melted by high power laser energy and then quickly solidified, thus reducing the dilution rate of the clad layer, and reducing the tendency to cracking and distortion. 25,26 Due to the insufficient studies of HMSS coating and the elusive underlying mechanisms for pitting of HMSS coating, in this work, a X818 HMSS coating was prepared via laser cladding on Q235 steel (in Chinese grade) substrate. For comparison, a X818 bulk was z E-mail: lusiyuan@nbu.edu.cn prepared by a traditional forming method of hot isostatic pressing.…”

Effect of CeO2 on Microstructure and Properties of Wear and Corrosion Resistance Martensitic Stainless Steel‐Based Coating on Laser Cladding

“…[1,2] Coatings prepared by this technique can satisfy the using demand of the parts and can save precious, rare material and reduce energy consumption. Therefore, laser cladding has become one of the main economical and effective means to solve the wear and corrosion of parts in harsh environments, [3][4][5] and thus it has broad application prospects in ocean engineering, aerospace, oil exploitation, and other fields. [6][7][8] Stainless steel is widely used in modern industrial equipment, so laser-cladding technology is used to repair and manufacture equipment or parts with stainless steel as raw materials.…”

Investigation into Microstructure, Wear Resistance in Air and NaCl Solution of AlCrCoNiFeCTax High-Entropy Alloy Coatings Fabricated by Laser Cladding

“…Steel is extensively applied in industrial components such as shaft parts, gear wheels and screws on account of its good machinability, excellent comprehensive mechanical properties and high performance-to-cost ratio [1,2]. However, for some steels (such as 45# steel, Q235 steel and 316L stainless steel) with low hardness, poor wear resistance severely restricts their more extensive applications as friction components in engineering fields [3]. Moreover, when they are used in a harsh corrosive circumstance, the chemical dissolution will further accelerate their failure [4,5].…”