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| Contact |
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Carreño-Morelli Efraín |
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| Title |
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MIM of Nitrogen-strengthened Austenitic Stainless Steel Using Biopolymer-based Binder |
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Carreño-Morelli E., Zinn M., Rodriguez-Arbaizar M., Bassas M., Girard H., Chappuis T., Richard J. |
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| References |
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Proc. of Powder Metallurgy World Congress WorldPM2016, Hamburg, Germany, October 9-13, 2016, pp. 1-6 |
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http://www.worldpm2016.com/ |
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| Abstract |
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High-nitrogen content austenitic stainless steel parts have been processed by injection moulding of a novel feedstock composed of gas atomized P558 stainless steel powder and biopolymer-based binder. The binder formulation consists of polyhydroxyalkanoate backbone polymer produced by bacterial fermentation, filler wax and surfactant. The solids loading was 60 vol.%. Tensile test specimens were injection moulded, debinded and sintered at 1270°C under nitrogen. The microstructure was characterized by metallographic observation, X-ray diffraction and X-ray computer tomography. Yield stress of 600 MPa, ultimate tensile strength of 900 MPa were achieved, meeting the reference values of the wrought alloy. |
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