| 张晓川*,任春华,王琰,计宏伟,王怀文.带状组织对高强度低合金钢力学性能影响的实验研究进展[J].实验力学,2023,38(3):317~326 |
| 带状组织对高强度低合金钢力学性能影响的实验研究进展 |
| Experimental research progress on the effect of banded structure on mechanical properties of high-strength low-alloy steel |
| 投稿时间：2022-07-22 修订日期：2022-11-03 |
| DOI：10.7520/1001-4888-22-180 |
| 中文关键词: 带状组织 数字图像相关方法 各向异性 变形机制 |
| 英文关键词:banded structure digital image correlation anisotropy deformation mechanism |
| 基金项目:国家自然科学基金面上项目(11872275) |
|
| 摘要点击次数: 1878 |
| 全文下载次数: 58 |
| 中文摘要: |
| 带状组织是高强度低合金(High-Strength Low-Alloy, HSLA)钢中一种常见的缺陷组织，会引起钢材的各向异性，对材料力学性能及其服役寿命具有重要影响。宏观尺度上的拉伸、冲击等实验技术结合显微观测是初期认识带状组织对力学性能影响的主要实验手段。而考虑到不同带状结构上的变形场特征、界面效应以及带状内部的非均匀性，从显微尺度获取不同带状组织的变形规律，对全面揭示带状组织的损伤演化行为及其对材料宏观力学性能的影响具有重要意义。本文总结了带状组织对HSLA钢力学性能影响的实验研究工作及成果，在研究手段上重点突出了数字图像相关(Digital Image Correlation, DIC)方法在这一研究中发挥的重要作用，较为全面地阐述了带状组织与HSLA钢宏观力学性能及断裂行为的关联性。本文总结的实验研究成果对科学评价含带状组织HSLA钢的质量及寿命预测具有指导作用。 |
| 英文摘要: |
| The banded structure is a common defect structure in high-strength low-alloy (HSLA) steel, which can cause anisotropy of the steel. The banded structure will reduce the quality and service life of HSLA steel. The main experimental means to understand the influence of banded structure on mechanical properties in the early stage is the tensile and impact experimental techniques combined with microscopic observation. However, considering the characteristics of the deformation field on different banded structures, interface, and the heterogeneity inside the band, obtaining the deformation law on the microscopic scale is essential for comprehensively revealing the damage evolution behavior of the banded structure. This paper summarizes the experimental research work and results of the banded structure on the mechanical properties of HSLA steel, points out the important role of digital image correlation (DIC) method in this research. It describes comprehensively the correlation between banded structure and macro-mechanical properties and fracture behavior of HSLA steel. The experimental research result summarized in the paper provides guidance for the scientific evaluation of the quality and life prediction of HSLA steel with a banded structure. |
| 查看全文 下载PDF阅读器 |
| 关闭 |
