Novel Method to Improve the Microstructure and Mechanical Properties of 45 Steel

Gu, Tingyue; Zhang, Shuaixin; Zhao, Yuhong; Yang, Yourong; Liu, Huafeng; Wu, Laijun; Liu, Jianhua; Hou, Hua

doi:10.1007/s12540-020-00960-x

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…Forty-five carbon structural steel is widely used in manufacturing industry as its good overall mechanical properties (Gu et al , 2021), and it is often used in the manufacture of shaft parts, which are prone to fracture, deformation and wear after long working time (Wang et al , 2022). Nowadays, the 45 steel with outstanding mechanical property is usually used for cylinder liner, however, it is prone to failure due to its low hardness (Cai et al , 2012).…”

Section: Introductionmentioning

confidence: 99%

Effect of laser scanning speed on microstructure and corrosive-wear performance of Ni-60%WC coating in Wusu mine water

Chuang¹,

Fan²,

Zhicheng

et al. 2023

ILT

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Purpose The purpose of this study is to investigate the effect of laser scanning speed (LSS) on the corrosive-tribological performance of Ni-60%WC coating in Wusu mine water, which was beneficial to improve the friction–wear performance of cylinder liner on water injection pump. Design/methodology/approach Ni-60%WC coatings were fabricated on 45 steel by laser cladding, and the microstructure and tribological performance was analyzed using a super depth of field microscope and ball-on-plate friction tester, and the wear mechanism was also discussed. Findings At room temperature (RT, 25 ± 2 °C), the average coefficients of friction of substrate and Ni-60%WC coatings fabricated at the LSS of 6, 10, 12 and 14 mm/s are 0.48 ± 0.08, 0.23 ± 0.01, 0.21 ± 0.05, 0.22 ± 0.02 and 0.25 ± 0.04, respectively, and the corresponding wear rates are 8.755 × 104, 4.525 × 103, 1.539 × 103, 1.957 × 103 and 2.743 × 103 µm3·s–1·N–1, respectively, showing that the coating fabricated at the LSS of 10 mm/s has best friction reduction and wear resistance. The wear mechanism of Ni-60%WC coating is abrasive wear, fatigue wear and oxidative wear, which is resulted from the WC particles with the high-hardness. Originality/value Ni-60%WC coatings were first applied for cylinder liner, and the effect of laser scanning speed on its tribological performance was investigated.

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Section: Introductionmentioning

confidence: 99%

Effect of laser scanning speed on microstructure and corrosive-wear performance of Ni-60%WC coating in Wusu mine water

Chuang¹,

Fan²,

Zhicheng

et al. 2023

ILT

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show abstract

“…In recent years, laser cladding technology has emerged as a focal point of research and application for enhancing the performance of parts and components, particularly in areas such as wear resistance, corrosion resistance, hightemperature resistance, and oxidation resistance [1][2][3][4][5]. Among the commonly used medium carbon steels in industrial applications, 45 steel stands out due to its favorable mechanical properties, including good strength, plasticity, and toughness, making it a popular choice for manufacturing connecting rods, gears, drive shafts, and various other parts [6][7][8]. However, when subjected to severe working conditions involving rotation, friction, high temperatures, and corrosion, the service performance and lifespan of parts made from 45 steel require improvement.…”

Section: Introductionmentioning

confidence: 99%

Optimization and Wear Performance Analysis of Laser-Cladded WC-Fe-Based Coating

Yin,

Cao,

Zhan

et al. 2023

Preprint

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In this study, a WC-Fe-based coating was prepared on 45 steel substrate utilizing laser clad-ding technology. To optimize the composition of the Fe-based alloy powder, a thorough anal-ysis of the cracks observed during the formation of the cladding layer was conducted. Ele-mental control of the WC-Fe-based alloy powder was employed to mitigate issues such as porosity and slagging, consequently reducing susceptibility to cracking. The optimized WC-Fe-based alloy coating exhibited enhanced wear and abrasion resistance when compared to the widely used Ni45 coating. Microstructural investigations revealed that both coatings fea-tured dendrites, cellular crystals, and equiaxial crystals. However, the WC-Fe coating dis-played a finer and denser microstructure, highlighting its superior characteristics. The hard-ness and abrasion resistance tests demonstrated exceptional performance of the WC-Fe-based coatings, boasting approximately three times the substrate's hardness and a wear rate approx-imately seven times lower than that of the substrate. The coefficient of friction for WC-Fe-based coatings remained consistently stable at approximately 0.4, indicative of remarkable friction reduction and abrasion resistance.

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Energy dissipation and seismic response reduction system for high-speed railway bridges based on multiple performance requirements

Xu,

Chen,

et al. 2024

Engineering Structures

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Novel Method to Improve the Microstructure and Mechanical Properties of 45 Steel

Cited by 6 publications

References 26 publications

Effect of laser scanning speed on microstructure and corrosive-wear performance of Ni-60%WC coating in Wusu mine water

Effect of laser scanning speed on microstructure and corrosive-wear performance of Ni-60%WC coating in Wusu mine water

Optimization and Wear Performance Analysis of Laser-Cladded WC-Fe-Based Coating

Energy dissipation and seismic response reduction system for high-speed railway bridges based on multiple performance requirements

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