A study of dynamic plasticity in austenite stainless steels with a gradient distribution of nanoscale twins

Linli Zhu; Chunsheng Wen; Chongyang Gao; Xiang Guo; Jian Lu

doi:10.1016/j.scriptamat.2017.02.005

A study of dynamic plasticity in austenite stainless steels with a gradient distribution of nanoscale twins

Linli Zhu^*, Chunsheng Wen, Chongyang Gao^*, Xiang Guo, Jian Lu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

19 Citations (Scopus)

Abstract

The dynamic plastic behavior related to the gradient distribution of twin spacing in 304 stainless steel thin wires is investigated experimentally with the strain rate varying from 1 × 10^{− 3}/s to 1.5 × 10⁴/s. Such gradient-nanotwinned structures are prepared by surface mechanical attrition treatment. A mechanism-based dynamic plastic model is developed to describe the strain-rate dependent stress-strain response in gradient-nanotwinned austenite stainless steels. A good agreement between experimental data and simulations was achieved, and further theoretical predictions demonstrated that the dynamic plastic behavior is sensitive to the twin spacing and volume fraction of gradient-nanotwinned region in austenite stainless steel wires.

Original language	English
Pages (from-to)	49-53
Journal	Scripta Materialia
Volume	133
DOIs	https://doi.org/10.1016/j.scriptamat.2017.02.005
Publication status	Published - 1 May 2017

Research Keywords

Constitutive model
Dynamic plasticity
Gradient-nanotwinned austenite stainless steels
Strain rate
Twin spacing

Access Output

10.1016/j.scriptamat.2017.02.005

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{08b1ef0aedaa4af79cc93a7fde9b2d47,

title = "A study of dynamic plasticity in austenite stainless steels with a gradient distribution of nanoscale twins",

abstract = "The dynamic plastic behavior related to the gradient distribution of twin spacing in 304 stainless steel thin wires is investigated experimentally with the strain rate varying from 1 × 10− 3/s to 1.5 × 104/s. Such gradient-nanotwinned structures are prepared by surface mechanical attrition treatment. A mechanism-based dynamic plastic model is developed to describe the strain-rate dependent stress-strain response in gradient-nanotwinned austenite stainless steels. A good agreement between experimental data and simulations was achieved, and further theoretical predictions demonstrated that the dynamic plastic behavior is sensitive to the twin spacing and volume fraction of gradient-nanotwinned region in austenite stainless steel wires.",

keywords = "Constitutive model, Dynamic plasticity, Gradient-nanotwinned austenite stainless steels, Strain rate, Twin spacing",

author = "Linli Zhu and Chunsheng Wen and Chongyang Gao and Xiang Guo and Jian Lu",

year = "2017",

month = may,

day = "1",

doi = "10.1016/j.scriptamat.2017.02.005",

language = "English",

volume = "133",

pages = "49--53",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - A study of dynamic plasticity in austenite stainless steels with a gradient distribution of nanoscale twins

AU - Zhu, Linli

AU - Wen, Chunsheng

AU - Gao, Chongyang

AU - Guo, Xiang

AU - Lu, Jian

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The dynamic plastic behavior related to the gradient distribution of twin spacing in 304 stainless steel thin wires is investigated experimentally with the strain rate varying from 1 × 10− 3/s to 1.5 × 104/s. Such gradient-nanotwinned structures are prepared by surface mechanical attrition treatment. A mechanism-based dynamic plastic model is developed to describe the strain-rate dependent stress-strain response in gradient-nanotwinned austenite stainless steels. A good agreement between experimental data and simulations was achieved, and further theoretical predictions demonstrated that the dynamic plastic behavior is sensitive to the twin spacing and volume fraction of gradient-nanotwinned region in austenite stainless steel wires.

AB - The dynamic plastic behavior related to the gradient distribution of twin spacing in 304 stainless steel thin wires is investigated experimentally with the strain rate varying from 1 × 10− 3/s to 1.5 × 104/s. Such gradient-nanotwinned structures are prepared by surface mechanical attrition treatment. A mechanism-based dynamic plastic model is developed to describe the strain-rate dependent stress-strain response in gradient-nanotwinned austenite stainless steels. A good agreement between experimental data and simulations was achieved, and further theoretical predictions demonstrated that the dynamic plastic behavior is sensitive to the twin spacing and volume fraction of gradient-nanotwinned region in austenite stainless steel wires.

KW - Constitutive model

KW - Dynamic plasticity

KW - Gradient-nanotwinned austenite stainless steels

KW - Strain rate

KW - Twin spacing

UR - http://www.scopus.com/inward/record.url?scp=85013155672&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85013155672&origin=recordpage

U2 - 10.1016/j.scriptamat.2017.02.005

DO - 10.1016/j.scriptamat.2017.02.005

M3 - RGC 21 - Publication in refereed journal

SN - 1359-6462

VL - 133

SP - 49

EP - 53

JO - Scripta Materialia

JF - Scripta Materialia

ER -

A study of dynamic plasticity in austenite stainless steels with a gradient distribution of nanoscale twins

Abstract

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this