Carbides and mechanical properties in a Fe-Cr-Ni-Mo high-strength steel with different V contents
Carbides and mechanical properties in a Fe-Cr-Ni-Mo high-strength steel with different V contents
复制标题
不同V含量Fe-Cr-Ni-Mo高强钢的碳化物及力学性能
DOI：
10.1016/j.msea.2013.09.030
复制
发表时间：
2013-12-20
期刊：
影响因子：
6.4
通讯作者：
Rong, Lijian
中科院分区：
文献类型：
--
作者：
Wen, Tao;Hu, Xiaofeng;Rong, Lijian
本文制备了四种不同钒含量（0%、0.03%、0.08%和0.14%）的铁 - 铬 - 镍 - 钼高强度钢，并通过三维原子探针（3DAP）和透射电子显微镜（TEM）研究了碳化物的演变。结果表明，钢中添加钒后出现了MC、M₂C和M₆C型碳化物，而在含0.0%钒的钢中为M₂₃C₆（M为铬、钼、锰、铁或钒的任意组合），并且随着钒含量的提高，碳化物尺寸逐渐减小。力学性能显著取决于钒含量。强度和伸长率随着钒含量的增加而逐渐提高，同时冲击韧性逐渐降低。在含约0.03%钒的钢中可获得优异的力学性能组合。（C）2013爱思唯尔有限公司。保留所有权利。
Fe-Cr-Ni-Mo high-strength steels with four different V contents (0%, 0.03%, 0.08% and 0.14%) were prepared in this paper and carbides evolution was investigated by means of three-dimensional atom probe (3DAP) and transmission electron microscopy (TEM). The results indicated that there appeared MC, M2C and M6C types of carbides after addition of V in the steels while it was M23C6 in 0.0%V steel (M is any combination of Cr, Mo, Mn, Fe or V), and the size of carbides decreased gradually with improving V content. The mechanical properties significantly depended on the content of V. The strength and elongation increased gradually with increase in the V content, meanwhile the impact toughness decreased gradually. The excellent combination of mechanical properties can be obtained in the steel with about 0.03%-V content. (C) 2013 Elsevier B.V. All rights reserved.