铸造技术2018，Vol.39Issue(2)：306-311,6.DOI:10.16410/j.issn1000-8365.2018.02.011
应力模型下局部组织形貌对低合金高强钢性能的影响
Effect of Local Microstructure on the Properties of Low Alloy High Strength Steel Based on Stress Model
罗宇1
作者信息
- 1. 神华神东煤炭集团公司设备维修中心,陕西神木719315
- 折叠
摘要
Abstract
In order to investigate the influence of inhomogeneous microstructure on the properties of low alloy highstrength steel (HSLA steel),a stress-strain constitutive equationwas obtained which was based on the model of Ashby-Orowan dispersion strengthening mechanism and Hall-Petch fine grain strengthening mechanism.The ABAQUS finite element software to simulate the stress condition of the RVE during the tincture process of the Q460D steel was investigated,finally,compared with the actual test results.The results show that the constitutive model can well reflect the mechanical properties and fracture mode of low alloy high strength steel,the crack is first formed in the coarse and uneven distribution of the pearlite grain in the fracture process of the low alloy high strength steel.关键词
低合金高强度钢/本构方程/有限元/代表性体积单元/断裂方式Key words
HSLA steel/constitutive equation/finite element/RVE/fracture mode分类
矿业与冶金引用本文复制引用
罗宇..应力模型下局部组织形貌对低合金高强钢性能的影响[J].铸造技术,2018,39(2):306-311,6.
