Influence of sintering on mechanical response of metal injection moulded parts

The present endeavour is to evaluate numerically and experimentally the influence of friction stir welding (FSW) parameters on peak temperatures, microstructures and mechanical properties of AZ91 magnesium alloy joints. A full 3D finite element ABAQUS model was developed to simulate the temperature distribution along the joint line. Therefrom, a total of nine different parametric combinations were derived for experimentations. Important insights relating to the material flow patterns and grain morphologies observed while altering the processing parameters have been elaborated. The parametric influence on the peak temperatures, grain morphologies, intermittent phases, tensile strength, and hardness are discussed through several mechanisms. Remarkably, the specimens prepared with the highest tool rotation speeds exhibited superior properties owing to several strengthening mechanisms.

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Effect of Sintering Temperature on Tensile Properties of Ti-6Al-4V Alloy Manufactured Through Metal Injection Molding

Mai,

Wang,

et al. 2024

Coatings

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Titanium and titanium alloys exhibit low density, high strength and excellent corrosion resistance, and have become workhorses in modern aerospace and chemical processing industries. Recently, Ti-6Al-4V alloy has been manufactured through metal injection molding (MIM). MIM is widely utilized in various manufacturing industries due to the near-net-forming process, especially in the preparation of difficult-to-deform high-temperature alloys. Sintering temperature is vital to ensuring good tensile mechanical properties. In this work, Ti-6Al-4V alloy was sintered under various sintering temperatures, from 1150 to 1250 °C. The effect of sintering temperature on the mechanical properties was evaluated. The tensile test results exhibited that a yield strength of 896.35 MPa, an ultimate tensile strength of 980.83 MPa and plastic elongation of 9.61% were produced at 1150 °C for 4 h; a yield strength of 877.23 MPa, an ultimate tensile strength of 981.92 MPa and plastic elongation of 7.74% were produced at 1200 °C for 4 h; and a yield strength of 923.33 MPa, an ultimate tensile strength of 1002.24 MPa and plastic elongation of 6.57% were produced at 1250 °C for 4 h.

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Influence of sintering on mechanical response of metal injection moulded parts

Cited by 3 publications

References 18 publications

Effect of Sintering Environment on Microstructures and Mechanical Properties of Metal Injection Molding Ti-6Al-4V Alloys

Effect of Sintering Environment on Microstructures and Mechanical Properties of Metal Injection Molding Ti-6Al-4V Alloys

Numerical and experimental investigation on AZ91 friction stir welding joints: Mechanics, properties

Effect of Sintering Temperature on Tensile Properties of Ti-6Al-4V Alloy Manufactured Through Metal Injection Molding

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