Simultaneously improved strength and ductility yet strain-hardenable 316L stainless steel by sigma phase and hetero-structuring

IF 7.6 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials & Design Pub Date : 2024-05-31 DOI:10.1016/j.matdes.2024.113058

Young-Kyun Kim , Sang Hun Shim , Yong Keun Kim, Ka Ram Lim, Young-Sang Na

{"title":"Simultaneously improved strength and ductility yet strain-hardenable 316L stainless steel by sigma phase and hetero-structuring","authors":"Young-Kyun Kim , Sang Hun Shim , Yong Keun Kim, Ka Ram Lim, Young-Sang Na","doi":"10.1016/j.matdes.2024.113058","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, we produced both homogeneous and heterogeneous-structured 316L austenitic stainless steels (SSs), each exhibiting comparable levels of yield strength (YS). Despite their similar YS, the heterogeneous-structured 316L SS exhibits a significantly higher tensile strength of ∼1 GPa compared to the homogeneous-structured 316L SS (∼832 MPa), and slightly higher fracture strain. The enhanced tensile strength and work hardening behavior in the heterogeneous-structured 316L SS were mainly attributed to the hetero-deformation induced (HDI) hardening, accelerated deformation-induced martensitic transformation (DIMT), and the presence of the nano-sized σ-phase particles. Our findings provide insights into the development of metastable heterogeneous-structured face-centered cubic (FCC) metallic materials with outstanding mechanical properties.</p></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":null,"pages":null},"PeriodicalIF":7.6000,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0264127524004325/pdfft?md5=9ee1ad98d2bf8b8717967bd5f0a4a6a3&pid=1-s2.0-S0264127524004325-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials & Design","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0264127524004325","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, we produced both homogeneous and heterogeneous-structured 316L austenitic stainless steels (SSs), each exhibiting comparable levels of yield strength (YS). Despite their similar YS, the heterogeneous-structured 316L SS exhibits a significantly higher tensile strength of ∼1 GPa compared to the homogeneous-structured 316L SS (∼832 MPa), and slightly higher fracture strain. The enhanced tensile strength and work hardening behavior in the heterogeneous-structured 316L SS were mainly attributed to the hetero-deformation induced (HDI) hardening, accelerated deformation-induced martensitic transformation (DIMT), and the presence of the nano-sized σ-phase particles. Our findings provide insights into the development of metastable heterogeneous-structured face-centered cubic (FCC) metallic materials with outstanding mechanical properties.

Abstract Image

查看原文本刊更多论文

通过西格玛相和异质结构同时提高 316L 不锈钢的强度和延展性以及应变硬化性能

在这项研究中，我们生产了均质和异质结构的 316L 奥氏体不锈钢 (SS)，每种钢的屈服强度 (YS) 水平相当。尽管屈服强度相似，但异质结构 316L 不锈钢的抗拉强度比均质结构 316L 不锈钢高出 1 GPa（832 MPa），断裂应变也略高。异质结构 316L SS 拉伸强度和加工硬化行为的增强主要归因于异质变形诱导硬化（HDI）、加速变形诱导马氏体转变（DIMT）以及纳米级 σ 相颗粒的存在。我们的研究结果为开发具有出色机械性能的可转移异质结构面心立方（FCC）金属材料提供了启示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Materials & Design Engineering-Mechanical Engineering

CiteScore

14.30

自引率

7.10%

发文量

1028

审稿时长

85 days

期刊介绍： Materials and Design is a multi-disciplinary journal that publishes original research reports, review articles, and express communications. The journal focuses on studying the structure and properties of inorganic and organic materials, advancements in synthesis, processing, characterization, and testing, the design of materials and engineering systems, and their applications in technology. It aims to bring together various aspects of materials science, engineering, physics, and chemistry. The journal explores themes ranging from materials to design and aims to reveal the connections between natural and artificial materials, as well as experiment and modeling. Manuscripts submitted to Materials and Design should contain elements of discovery and surprise, as they often contribute new insights into the architecture and function of matter.

文献相关原料

公司名称	产品信息	采购帮参考价格