Effect of Grain Size on Mechanical and Creep Rupture Properties of 253 MA Austenitic Stainless Steel

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چکیده

The effect of grain size on the mechanical properties and creep rupture 253 microalloyed (MA) austenitic stainless steel (ASS) was investigated. cold rolling process with a 53% reduction in thickness applied to followed by annealing at 1100 °C over 0, 900, 1800, 3600 s obtain sizes 32.4, 34.88, 40.35, 43.77 µm, respectively. Uniaxial tensile micro-Vickers hardness tests were carried out study room temperature. test performed 700 under load 150 MPa. results showed that there correlation between size, properties, time. fine initial relatively good short time, while coarse produced low long 40.35 µm optimum for high value time due elongation values temperature ductility value. intergranular fracture found below mixed mode transgranular above after test.

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ژورنال

عنوان ژورنال: Metals

سال: 2022

ISSN: ['2075-4701']

DOI: https://doi.org/10.3390/met12050820