Effect of Fe Content on Microstructure and Properties of Laser Cladding Inconel 625 Alloy

Liu, Weidong; Li, Lei; Guofa, MI; Wang, Jincai; Pan, Yujia

doi:10.3390/ma15228200

Cited by 7 publications

(3 citation statements)

References 23 publications

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“…Austenite phase γ-Fe founded in all coatings can be attributed to the existence of retained austenite during the martensitic transformation process during laser cladding. The results also agreed with the investigation by Sun and his coauthors [39]. It has been approved that the existence of retained austenite is benefit for improving the wear resistance of materials [40].…”

Section: Resultssupporting

confidence: 90%

Laser shock peening Fe-based coatings for enhancing wear and corrosion resistance

Yang

Zhou

Chen

et al. 2021

Materials Science and Technology

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Laser Shock Peening (LSP) was introduced to reduce the residual stress and improve the wear and corrosion resistance of Fe-based 43X coating on worn U71Mn steel by laser cladding technology. The tensile stress decreased with increasing of laser power density and impact times, finally, transferred to compressive stress. The microstructure of the coatings was refined due to LSP treatment. The refined microstructure and existence of retained Austenite phase resulted in significant improvement in microhardness and anti-wear performances. The coatings after LSP process presented better corrosion resistance. However, impact three times with a higher power density has negative effect on improving the corrosion resistance.

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Section: Resultssupporting

confidence: 90%

Laser shock peening Fe-based coatings for enhancing wear and corrosion resistance

Yang

Zhou

Chen

et al. 2021

Materials Science and Technology

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“…Therefore, elucidating the balance between the size of deformation and the aging treatment process based on the principles of physical metallurgy is the key to achieving microstructure and performance control. However, researchers have paid more attention to welding and hot working for the GH3625 superalloy and similar alloys, compared to the effects of cold drawing deformation and subsequent heat treatment on the microstructure and properties [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Research on the Influence of Cold Drawing and Aging Heat Treatment on the Structure and Mechanical Properties of GH3625 Alloy

Li,

Wo,

Wang

et al. 2024

Materials

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With the development of the petroleum industry, the demand for materials for oilfield equipment is becoming increasingly stringent. The strength increase brought about by time strengthening is limited in meeting the needs of equipment development. The GH3625 alloy with different strength levels can be obtained through cold deformation and heat treatment processes. A study should be carried out to further develop the potential mechanical properties of GH3625. In this study, the GH3625 alloy was cold drawn with different reductions in area (0–30%) and heat treated, and its mechanical properties were tested. The microstructure of the alloy during deformation and heat treatment was characterized by methods such as optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) based on the principles of physical metallurgy. The strength increase caused by dislocation strengthening was calculated from the dislocation density, tested by X-ray diffraction (XRD). The calculated value was compared to the measured value, elucidating the strengthening effect of cold deformation and heat treatment. The results showed that the yield strength and yield ratio of the cold-drawn alloy significantly reduced after aging at 650 °C and 760 °C. Heat treatment can make a cold-deformed material recover, ablate dislocations, and greatly reduce the dislocation density in the microstructure of the GH3625 alloy, which was the main factor in the decrease in yield strength. The work-hardening gradient of the cold-drawn material varied greatly with different reductions in area. When the reduction in area was small (10%), the hardness gradient was obvious. When it increased to 30%, the alloy was uniformly strengthened as the deformation was transmitted to the axis. This study can provide more mechanical performance options for GH3625 alloy structural components in the petrochemical industry.

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“…Cladding powder undergoes fast melting and solidification on the substrate surface under the intense laser beam, resulting in a covering [25,26]. With a minimal heat-affected zone, the coating may successfully metallurgically attach to the substrate [27][28][29]. Furthermore, laser-based cladding technology has advantages such as fine microstructure, low dilution rate, environmental friendliness and material saving [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Load on Tribological Behavior in Laser-Cladded FeCrSiNiCoC Coatings

Long

et al. 2023

Materials

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The FeCrSiNiCoC coatings with fine macroscopic morphology and uniform microstructure were made on 1Cr11Ni heat resistant steel substrate by a laser-based cladding technique. The coating consists of dendritic γ-Fe and eutectic Fe-Cr intermetallic with an average microhardness of 467 HV0.5 ± 22.6 HV0.5. At the load of 200 N, the average friction coefficient of the coating dropped as temperature increased, while the wear rate decreased and then increased. The wear mechanism of the coating changed from abrasive wear, adhesive wear and oxidative wear to oxidative wear and three-body wear. Apart from an elevation in wear rate with increasing load, the mean friction coefficient of the coating hardly changed at 500 °C. Due to the coating’s transition from adhesive wear and oxidative wear to three-body wear and abrasive wear, the underlying wear mechanism also shifted.

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Effect of Fe Content on Microstructure and Properties of Laser Cladding Inconel 625 Alloy

Cited by 7 publications

References 23 publications

Laser shock peening Fe-based coatings for enhancing wear and corrosion resistance

Laser shock peening Fe-based coatings for enhancing wear and corrosion resistance

Research on the Influence of Cold Drawing and Aging Heat Treatment on the Structure and Mechanical Properties of GH3625 Alloy

Effect of Temperature and Load on Tribological Behavior in Laser-Cladded FeCrSiNiCoC Coatings

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