Microstructure evolution and quantitative analysis of mechanical properties of cold-rolled low carbon niobium steel

被引：0
|
作者：
Luo, Wentao [1 ]
机构：
[1] Chongqing Ind Polytech Coll, Sch Mech Engn, Key Lab Mat Proc & Mold Technol, Chongqing 401120, Peoples R China
来源：
METALLURGICAL RESEARCH & TECHNOLOGY | 2024年 / 121卷 / 05期
关键词：
niobium; low carbon niobium steel; mechanical property; strengthening model; DISLOCATION BOUNDARIES; GRAIN-BOUNDARIES; IF-STEEL; STRENGTH; NB; RESISTANT; BEHAVIOR; RECRYSTALLIZATION; PRECIPITATION; DEFORMATION;
D O I：
10.1051/metal/2024072
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Based on the idea of "plain" of alloying elements, Fe-0.2C-2Nb (wt%) alloy steel was designed. The microstructure of the alloy was effectively controlled by means of severe plastic deformation at room temperature and reasonable heat treatment process. The microstructure evolution of the alloy was systematically characterized by TEM. After annealing at 600 degrees C for 0.5 h, the ultimate tensile strength of the sample reached 844 MPa, the total elongation reached 13%, which had an equilibrium state of mechanical properties. Thus a quantitative model between the microstructure parameters and mechanical properties was established to reveal the deformation mechanism and strengthening mechanism of the alloy.
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页数：7
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