This article prepares 3Al-310S heat-resistant stainless steel by adding 3% Al to ordinary 310S stainless steel.After different solid solution processes,the experimental steel is subjected to X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and room temperature tensile performance testing to study the influence law of solid solution processes on the microstructure and mechanical properties of 3Al-310S heat-resistant steel.The research results indicate that the matrix structure of 3Al-310S heat-resistant steel is austenite.With the exten-sion of solution time and the increase of solution temperature,the grain size of 3Al-310S heat-resistant steel gradually in-creases.With the increase of solution time and solution temperature,the hardness and tensile strength of 3Al-310S plate gradually decrease,and the elongation gradually increases.Among them,when the solution temperature is 1 000℃and the solution time is 10 minutes,the tensile strength of the experimental steel reaches 618.75 MPa,and the elongation is 33.80% .
维普
万方数据