NiCr Alloy Coating Deposited on the Surface of 35CrMo Steel by the Electrospark Process

Hua Yu; Hong Xin Shi; Yao Li Wang; Ke Ke Zhang; Wen Yan Wang; Li Juan Han; Qing Hua Pang

doi:10.4028/www.scientific.net/MSF.575-578.827

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The Simulation of Residual Stress for Stud Welding and Establishment of Strength Estimating Model
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The Application of Welding Heat Cycle Computer Software
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NiCr Alloy Coating Deposited on the Surface of 35CrMo Steel by the Electrospark Process
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Computer Simulation of Thermo-Mechanical Processes at Fusion Welding of Alloyed Steels
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Gas Tungsten Arc Welding and Hybrid Laser-TIG Welding Temperature Field Analysis of AZ31B Magnesium Alloy
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Study on Computer Emulation of PTFE’s Wearability Improvement by Al³⁺ Ion Implantation
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Influence of Temperature on Field-Induced Reorientation Strain in Magnetic Shape Memory Alloy
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NiCr Alloy Coating Deposited on the Surface of 35CrMo Steel by the Electrospark Process

Abstract:

Strengthened coating on the surface of 35CrMo steel alloy was deposited by electrospark process using NiCr electrode. The bond strength and microhardness of the coating was checked and the microstructure of the strengthened coating was analyzed using the optical micro-scope, X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersion spectrum (EDS). The results show that the bond strength between the coating and the base metal is 495.1MPa, and the hardness of the coating surface is about 2 times than that of the base metal, and the property of the workpieces surface has become better. The coating is a metallurgical reacting bonding layer between the base metal and the NiCr electrode, and its main ingredients are FeNi and NiCrFe.