Thermal fatigue resistance of H13 die steel repaired by partial laser surface remelting process

Cong, Dalong; Zhou, Hao; Ren, Zhenan; Liu, Ren; Liu, G. Y.; Lu, Bao; Meng, Chao; Wang, C. W.

doi:10.1179/1743284713y.0000000367

Cited by 4 publications

(4 citation statements)

References 31 publications

(26 reference statements)

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“…Figure 8 shows the microstructural evolution of the matrix with an increasing number of thermal fatigue cycles. Carbides gradually coarsen in the matrix which can be ascribed to the precipitation of alloy carbides during the process of thermal cycling [39,40].…”

Section: Microhardness and Microstructural Evolution After Different ...mentioning

confidence: 99%

Effect of Thermal Fatigue on Microstructure and Mechanical Properties of H13 Tool Steel Processed by Selective Laser Surface Melting

Meng

Wang

et al. 2019

Metals

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Selective laser surface melting, which brings together the bionic theory and the laser process, is an effective way to enhance the thermal fatigue behavior of materials. In this study, in order to examine the relationship between the mechanical properties and thermal fatigue behavior of materials processed by selective laser surface melting, the tensile properties at room temperature and elevated temperature of treated specimens and untreated specimens after different numbers of thermal fatigue cycles were investigated and compared. Moreover, the microstructure evolution and the microhardness of the laser-affected zone were investigated after different numbers of thermal fatigue cycles. The results show that microhardness of the laser-melted zone gradually decreases with an increasing number of thermal fatigue cycles; the number of thermal fatigue cycles has little effect on the grain size in the laser-melted zone, and the percentage of low-angle grain boundaries decreases with an increasing number of thermal fatigue cycles. The strength of specimens gradually decreases, whereas the fracture elongation gradually increases with an increasing number of thermal fatigue cycles at room temperature and elevated temperature. In addition, the stress distribution on the specimen surface during tensile test was investigated using the finite element method, and the results indicate that the stress transfer exists between the laser-affected zone and the untreated zone.

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Section: Microhardness and Microstructural Evolution After Different ...mentioning

confidence: 99%

Effect of Thermal Fatigue on Microstructure and Mechanical Properties of H13 Tool Steel Processed by Selective Laser Surface Melting

Meng

Wang

et al. 2019

Metals

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“…However, the cost of laser cladding is so high, and its coating is easy to crack. [1][2][3] Kılıc et al 4 pointed that one of the major challenges of co-deposition of a sufficient number of nanoparticles in electroplating is avoiding the agglomeration of particles. Homogeneity of the composite coating in electroplating has already attracted researchers' attention.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Ni60–SiC coating on carbon steel for improving friction, corrosion properties

Zhang

Pei

et al. 2016

Materials Science and Technology

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The Ni60 and SiC-Ni60 composite coatings were successfully obtained by high-frequency inductive cladding on the AISI 1045 steel surface. The influence of SiC nanoparticles on the morphologies, phase composition, micro-hardness, wear resistance and corrosion resistance of the coatings were investigated systematically. An ultrasonic-assisted method was pre-treated for homogenising coating. The performance tests of coatings indicated that high-quality metallurgical bonding was formed under the optimised parameters. The average micro-hardness of Ni60 and SiC-Ni60 coatings was 765.6 and 1072.4 HV, respectively. The corresponding wear resistance was also measured, and the composite coating showed a much lower friction coefficient and wear rate. The corrosion resistance of the coatings was evidently improved by the addition of SiC nanoparticles.

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“…In the past few years, Zhou et al have studied the fatigue wear resistance of cast iron and tool steel. According to previous reports, the facts that the wearable surface with units processed by laser can enhance the wear resistance of tool steel and cast iron under sliding wear condition significantly has been proved [16][17][18]. The surface with units presented the alternated hardness as the shape of ground beetles' elytrum or tree leaf, in which the units are identified as biomimetic units.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 93%

Effect of one-step laser processed biomimetic coupling units' degrees on rolling contact fatigue wear resistance of train track alloy steel

Yang

Zhou

Zhang

et al. 2015

Surface and Coatings Technology

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Thermal fatigue resistance of H13 die steel repaired by partial laser surface remelting process

Cited by 4 publications

References 31 publications

Effect of Thermal Fatigue on Microstructure and Mechanical Properties of H13 Tool Steel Processed by Selective Laser Surface Melting

Effect of Thermal Fatigue on Microstructure and Mechanical Properties of H13 Tool Steel Processed by Selective Laser Surface Melting

Fabrication of Ni60–SiC coating on carbon steel for improving friction, corrosion properties

Effect of one-step laser processed biomimetic coupling units' degrees on rolling contact fatigue wear resistance of train track alloy steel

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