{"title":"应变速率对汽车级 TRIP 辅助先进高强度钢的拉伸性能、错取向分布和纹理演变的影响","authors":"Sudipta Mohapatra , Ashish Kumar , Suman Kumar , Govardhana Poojari , Min-Suk Oh","doi":"10.1016/j.matlet.2024.137612","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates the influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of annealed Fe-3.46Al-7.52Mn-0.92Si-0.22C (wt.%) steel. Tensile tests are performed on the annealed sample at room temperature with strain rates of 3.3 × 10<sup>-4</sup> (SR-1), 1.65 × 10<sup>-3</sup> (SR-2), and 3.3 × 10<sup>-3</sup> s<sup>−1</sup> (SR-3). At higher strain rates, a higher amount of austenite is retained and higher weighted average kernel average misorientation (KAM) is observed. SR-1 exhibits a superior ductility (40 %) compared to SR-2 and SR-3 (28 and 18 %, respectively) due to the combined effect of a higher amount of austenite (29.2 %) transformed to martensite, a higher fraction of low-angle grain boundaries, and strong Ms-brass {011} < 211 > texture. However, SR-2 and SR-3 show better tensile strength compared to SR-1 due to higher fraction of high-angle grain boundaries and evolution of higher intensity α-fiber RD // <110 > .</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"378 ","pages":"Article 137612"},"PeriodicalIF":2.7000,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of automotive-grade TRIP-assisted advanced high-strength steel\",\"authors\":\"Sudipta Mohapatra , Ashish Kumar , Suman Kumar , Govardhana Poojari , Min-Suk Oh\",\"doi\":\"10.1016/j.matlet.2024.137612\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study investigates the influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of annealed Fe-3.46Al-7.52Mn-0.92Si-0.22C (wt.%) steel. Tensile tests are performed on the annealed sample at room temperature with strain rates of 3.3 × 10<sup>-4</sup> (SR-1), 1.65 × 10<sup>-3</sup> (SR-2), and 3.3 × 10<sup>-3</sup> s<sup>−1</sup> (SR-3). At higher strain rates, a higher amount of austenite is retained and higher weighted average kernel average misorientation (KAM) is observed. SR-1 exhibits a superior ductility (40 %) compared to SR-2 and SR-3 (28 and 18 %, respectively) due to the combined effect of a higher amount of austenite (29.2 %) transformed to martensite, a higher fraction of low-angle grain boundaries, and strong Ms-brass {011} < 211 > texture. However, SR-2 and SR-3 show better tensile strength compared to SR-1 due to higher fraction of high-angle grain boundaries and evolution of higher intensity α-fiber RD // <110 > .</div></div>\",\"PeriodicalId\":384,\"journal\":{\"name\":\"Materials Letters\",\"volume\":\"378 \",\"pages\":\"Article 137612\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-10-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167577X2401752X\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X2401752X","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of automotive-grade TRIP-assisted advanced high-strength steel
This study investigates the influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of annealed Fe-3.46Al-7.52Mn-0.92Si-0.22C (wt.%) steel. Tensile tests are performed on the annealed sample at room temperature with strain rates of 3.3 × 10-4 (SR-1), 1.65 × 10-3 (SR-2), and 3.3 × 10-3 s−1 (SR-3). At higher strain rates, a higher amount of austenite is retained and higher weighted average kernel average misorientation (KAM) is observed. SR-1 exhibits a superior ductility (40 %) compared to SR-2 and SR-3 (28 and 18 %, respectively) due to the combined effect of a higher amount of austenite (29.2 %) transformed to martensite, a higher fraction of low-angle grain boundaries, and strong Ms-brass {011} < 211 > texture. However, SR-2 and SR-3 show better tensile strength compared to SR-1 due to higher fraction of high-angle grain boundaries and evolution of higher intensity α-fiber RD // <110 > .
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
