A comparative study of microstructure and mechanical behavior of CO2 and diode laser deposited Cu–38Ni alloy

Bhattacharya, Sudip; Dinda, G.P.; Dasgupta, A. K.; Mazumder, J.

doi:10.1007/s10853-013-7883-7

Cited by 14 publications

(6 citation statements)

References 30 publications

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“…As the strain increases, the dislocation accumulates again to a certain extent, and the recrystallization process regains its dominance, and the curve declines again. This process of repeated changes will continue, the change period remains roughly the same, but the amplitude gradually decays [12] . Therefore, dynamic recrystallization and work hardening will alternate, making the curve show a wavy change.…”

Section: Flow Stress Curve Of C83600 Tin Bronze Alloymentioning

confidence: 97%

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The hot deformation of c83600 tin bronze alloy based on Arrhenius constitutive models

Zeng,

Huang,

Liu

et al. 2024

Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023)

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For a further study on the hot deformation behaviors of C83600 Tin Bronze alloy under the elevated temperatures, the real stress-strain curve of C83600 Tin Bronze alloy in isothermal compression test were obtained under the conditions of deformation temperature of 873, 973K, 1073K, strain rate of 0.001, 0.01, 0.1, 1s -1 and deformation of 50%., the temperature range of 873-1073 K and strain rate range of 0.001-1s -1 by the Gleeble-3500 thermo mechanical simulator, constitutive equations were established to describe the high-temperature flow stress of this alloy based on modified Arrhenius-Type constitutive model,respectively. Meanwhile, the predictability of the obtained models was assessed by correlation coefficients (R) and root mean square error (RMSE), where the values R were computed to be 0.99326, and the values of RMSE were calculated to be 5.1898 for modified Arrhenius-Type constitutive model, respe.ctively. Moreover,the comparison of the experimental and predicted flow stresses in the strain range of 0.05−0.6 further indicated that the obtained modified Arrhenius-Type model possessed better predictability on hot deformation behavior of C83600 Tin Bronze alloy.

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Section: Flow Stress Curve Of C83600 Tin Bronze Alloymentioning

confidence: 97%

“…This coefficient represents the correlation between the experimental value and the predicted value. The expression is as follows: (11,12,13)  …”

Section: Evaluation Of Modelmentioning

confidence: 99%

The hot deformation of c83600 tin bronze alloy based on Arrhenius constitutive models

Zeng,

Huang,

Liu

et al. 2024

Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023)

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“…On the basis of phase diagrams and previous research, it may be assumed that boron-nickel eutectic phase exists in obtained structures. Moreover, microstructures of melted areas probably contain nickel borides and Ni-Cu solid solution [31].…”

Section: Microstructure and Depth Of Laser Tracksmentioning

confidence: 99%

“…It was found that layers produced with diode laser are built with grains of larger size distribution and exhibit higher tensile properties. On the other hand, layers manufactured using CO 2 laser are relatively hard but the microhardness results distribution is non-uniform as compared to diode laser formed specimens [31].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it was found that addition of copper which is the second main element of Monel 400, to boron layer, reduces brittleness and enhances wear resistance of the surface [5,18]. Borided layers are mostly produced in diffusion processes but in the last two decades of intensive laser techniques progress, there was a much increase in using lasers for obtaining boron-alloyed metal surfaces [14,16,17,[19][20][21][22][23][24] and others [25][26][27][28][29][30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and selected properties of Monel 400 alloy after laser heat treatment and laser boriding using diode laser

Kukliński

Bartkowska

Przestacki

2018

Int J Adv Manuf Technol

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This study concentrates on describing effects of laser heat treatment of Monel 400 and laser alloying its surface with boron. Surfaces without and with initial boron layers of two different thicknesses (100 and 200 μm) were processed using diode laser. Laser beam power density was constant and equal to 178.3 kW/cm 2 . To determine the influence of laser beam scanning velocity on final properties of treated surfaces, laser beam scanning velocity was set on four different values: 5, 25, 50, and 75 m/min. Microstructures of pure Monel 400 and Monel 400 alloyed with 100 μm boron content are composed of dendrites. Areas laser alloyed with 200 μm boron layer contain mainly nickel borides. Boron addition in Monel 400 surface results in microhardness increase in which the level depends on boron content and the laser beam scanning velocity. Increasing the thickness of initial boron layer and speeding up the laser beam lead to obtain higher microhardness. On the other hand, areas laser alloyed with 200 μm boron layer using laser beam scanning velocity equal to 75 m/min contain deep cracks which propagate from the surface through the produced layer. Furthermore, it was found that the depths of laser heat-treated areas depend significantly on the boron content. As the result of differences in thermal properties between Monel 400 and boron, depth of re-melted zones in some conditions does not lower with increasing laser beam scanning velocity.

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3D printing of aluminum alloys using laser powder deposition: a review

Wang

et al. 2021

Int J Adv Manuf Technol

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A comparative study of microstructure and mechanical behavior of CO2 and diode laser deposited Cu–38Ni alloy

Cited by 14 publications

References 30 publications

The hot deformation of c83600 tin bronze alloy based on Arrhenius constitutive models

The hot deformation of c83600 tin bronze alloy based on Arrhenius constitutive models

Microstructure and selected properties of Monel 400 alloy after laser heat treatment and laser boriding using diode laser

3D printing of aluminum alloys using laser powder deposition: a review

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