Study on Microstructure and Mechanical Properties of Ultrafine-Grained 45 Steel
作者: 赵 新 ：郑州航空工业管理学院六系，郑州;
Abstract: In order to produce ultrafine-grained steel, 45 steel was quenched and warm-rolled. The total re-duction was 50%. The microstructural evolution during the process was studied by using an optical microscope and a transmission electron microscopy. The properties were investigated by using tensile tests. The starting microstructure was lath martensite with a small amount of flake martensite. The microstructure of the specimen compressed at 600˚C - 700˚C was nano-carbides + equiaxed ultrafine ferrite grains and a good combination of strength and ductility was obtained. The tensile strength and total elongation were 646 - 861 MPa and 21.51% - 9.1%, respectively.
文章引用: 赵 新 (2014) 超细晶45钢的制备及其组织与力学性能的研究。 冶金工程， 1， 35-39. doi: 10.12677/MEng.2014.12006
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