钢管2026，Vol.55Issue(1)：53-57,5.DOI:10.19938/j.steelpipe.1001-2311.2026.1.53.57
V元素对4140钢管组织与性能的影响
Effect of Element Vanadium on Microstructure and Property of 4140 Steel Tube
周国帅 1宋康 1郭兴邦 1苏郑卿 1李珺 1祁文娟 1蔡煜1
作者信息
- 1. 江苏常宝钢管股份有限公司,江苏 常州 213000
- 折叠
摘要
Abstract
Analyzed here in the article is the effect of addition of Element V on the post-quenching and tempering treatment microstructure,and type and distribution characteristics of the precipitated phase of the 4140 mechanical tool-purposed tube.The test results show that addition of V causes solution strengthening and induces precipitation of the fine vanadium carbides so as to produce the pinning effect,which gets the austenitic grains of the 4140 mechanical tool-purposed tube obviously refined,which in turn leads to enhancing the microstructure homogeneity;meanwhile,under the precondition that the same strength level is guaranteed,the addition of V,the refined grains and the uniformly distributed precipitated phase can effectively prevent the initiation and propagation of cracks so as to get the impact toughness of the material remarkably enhanced.关键词
4140钢/V元素/显微组织/力学性能/淬透性Key words
steel 4140/vanadium/microstructure/mechanical property/hardenability引用本文复制引用
周国帅,宋康,郭兴邦,苏郑卿,李珺,祁文娟,蔡煜..V元素对4140钢管组织与性能的影响[J].钢管,2026,55(1):53-57,5.
