Effects of Microstructures on Mechanical Behavior of Dual-Phases Steel
Abstract: The ingots were rolled by 550 mills in laboratory and the different shapes and distributions of ferrite and martensite were obtained by changing the cooling process. The influence of the shape and distribution of ferrite and martensite on mechanical properties of dual phase steel was investigated. The results indicated that, the size of martensite is finer, and the distribution of martensite is more homogeneous in steel with the microstructure was mixed by polygonal ferrite, acicular ferrite and martensite than that of steel with the microstructure mixed by polygonal ferrite and martensite. Moreover, the values of yield strength, tensile strength and impact toughness increase apparently, the value of elongation decreases.
文章引用: 郭佳 , 姚志强 , 杜宇 , 刘杰 , 李飞 , 朱国森 (2013) 组织形貌对热轧双相钢力学行为影响。 材料科学， 3， 179-185. doi: 10.12677/MS.2013.34033
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