Realizing strength–ductility synergy in a lean duplex stainless steel through enhanced TRIP effect via pulsed electric current treatment

材料科学 微观结构 奥氏体 延展性(地球科学) 电子背散射衍射 冶金 复合材料 可塑性 蠕动
作者
Shaojie Gu,Chang Liu,Yasuhiro Kimura,Sung‐Min Yoon,Yi Cui,Xingxu Yan,Yang Ju,Yuhki Toku
出处
期刊:Materials Science and Engineering A-structural Materials Properties Microstructure and Processing [Elsevier BV]
卷期号:883: 145534-145534 被引量:2
标识
DOI:10.1016/j.msea.2023.145534
摘要

Optimization of the strength–ductility compromise in lean duplex stainless steels (LDSSs) often involves controlling the stability of austenite by chemically adjusting it to be metastable and enabling phase transformation through a transformation-induced plasticity (TRIP) effect during plastic deformation. This study investigated the effects of pulsed electric current (PEC) treatment on the spatial distribution of alloying elements within the microstructure and enhancement of the mechanical properties of a new type of LDSS material, NSSC2120. The results showed that PEC treatment had a significant positive impact on the mechanical properties of NSSC2120. Specifically, after applying 20 pulses of PEC treatment at a current density of 700 A/mm2 for 8 ms, the material exhibited a 27% increase in ductility and 8% increase in strength. The microstructural evolution induced by the PEC treatments was investigated using quasi-in-situ electron backscatter diffraction and energy-dispersive X-ray spectroscopy. The PEC treatment facilitated the diffusion of alloying elements, which played a crucial role in triggering the TRIP effect during plastic deformation owing to the decreased stability of austenite with a lower content of austenite-stabilizing elements, thereby resulting in simultaneous improvement in both strength and ductility. Significantly, the rapid thermal process employed in the PEC treatment did not give rise to detrimental precipitates within the microstructure of the material, rendering PEC treatment a promising alternative to conventional heat treatment. The simplicity, speed, and low energy consumption associated with the PEC treatment make it an appealing choice for processing similar materials and achieving both microstructural modification and optimization of mechanical properties.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
超勍发布了新的文献求助10
2秒前
小马甲应助yuanshl1985采纳,获得10
2秒前
zhuxiaonian完成签到,获得积分10
5秒前
田様应助淘气科研采纳,获得10
5秒前
chenyi完成签到,获得积分10
6秒前
zyyyy完成签到,获得积分10
6秒前
奶黄包完成签到 ,获得积分10
6秒前
SYLH应助海阔天空采纳,获得10
6秒前
6秒前
机灵又蓝完成签到,获得积分10
7秒前
张土豆完成签到 ,获得积分10
7秒前
善学以致用应助小王采纳,获得10
7秒前
orang完成签到,获得积分10
8秒前
巧巧艾完成签到,获得积分10
8秒前
9秒前
邵洋完成签到,获得积分10
9秒前
sl发布了新的文献求助10
9秒前
10秒前
小迪迦奥特曼完成签到,获得积分10
10秒前
10秒前
cckk发布了新的文献求助10
11秒前
夏目由美完成签到 ,获得积分10
11秒前
Jasper应助哦哦哦采纳,获得10
12秒前
YYD完成签到,获得积分10
12秒前
超勍完成签到,获得积分10
12秒前
碧蓝碧凡发布了新的文献求助10
13秒前
Popeye应助鹤鸣采纳,获得30
13秒前
YYD发布了新的文献求助10
14秒前
yuanshl1985发布了新的文献求助10
14秒前
积极的黑猫完成签到,获得积分10
15秒前
GB完成签到 ,获得积分10
15秒前
Metx完成签到 ,获得积分10
16秒前
孤独的涔完成签到,获得积分10
17秒前
Jay完成签到,获得积分10
17秒前
18秒前
深情安青应助hf采纳,获得10
20秒前
学不懂数学应助大观天下采纳,获得10
20秒前
醉熏的水绿完成签到 ,获得积分10
20秒前
秦艺完成签到,获得积分10
21秒前
21秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038426
求助须知:如何正确求助?哪些是违规求助? 3576119
关于积分的说明 11374556
捐赠科研通 3305834
什么是DOI,文献DOI怎么找? 1819339
邀请新用户注册赠送积分活动 892678
科研通“疑难数据库(出版商)”最低求助积分说明 815029