Influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of automotive-grade TRIP-assisted advanced high-strength steel

Sudipta Mohapatra; Ashish Kumar; Suman Kumar; Govardhana Poojari; Min Suk Oh

doi:10.1016/j.matlet.2024.137612

Influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of automotive-grade TRIP-assisted advanced high-strength steel

Sudipta Mohapatra
, Ashish Kumar
, Suman Kumar
, Govardhana Poojari
, Min Suk Oh^*

^*Corresponding author for this work

Metallurgical System Engineering

Research output: Contribution to journal › Journal article › peer-review

5 Scopus citations

Abstract

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 >.

Original language	English
Article number	137612
Journal	Materials Letters
Volume	378
DOIs	https://doi.org/10.1016/j.matlet.2024.137612
State	Published - 2025.01.1

Keywords

Fe-3.46Al-7.52Mn-0.92Si-0.22C (wt.%)
Grain boundary
Microstructure
Strain rate-dependent tensile properties
Texture

Quacquarelli Symonds(QS) Subject Topics

Engineering - Mechanical
Materials Science
Physics & Astronomy

Access to Document

10.1016/j.matlet.2024.137612

Cite this

@article{5c8b10b1f5c042e290759246cf1210bf,

title = "Influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of automotive-grade TRIP-assisted advanced high-strength steel",

abstract = "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 >.",

keywords = "Fe-3.46Al-7.52Mn-0.92Si-0.22C (wt.\%), Grain boundary, Microstructure, Strain rate-dependent tensile properties, Texture",

author = "Sudipta Mohapatra and Ashish Kumar and Suman Kumar and Govardhana Poojari and Oh, \{Min Suk\}",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2025",

month = jan,

day = "1",

doi = "10.1016/j.matlet.2024.137612",

language = "English",

volume = "378",

journal = "Materials Letters",

issn = "0167-577X",

}

TY - JOUR

T1 - Influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of automotive-grade TRIP-assisted advanced high-strength steel

AU - Mohapatra, Sudipta

AU - Kumar, Ashish

AU - Kumar, Suman

AU - Poojari, Govardhana

AU - Oh, Min Suk

PY - 2025/1/1

Y1 - 2025/1/1

N2 - 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 >.

AB - 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 >.

KW - Fe-3.46Al-7.52Mn-0.92Si-0.22C (wt.%)

KW - Grain boundary

KW - Microstructure

KW - Strain rate-dependent tensile properties

KW - Texture

UR - https://www.scopus.com/pages/publications/85206977625

U2 - 10.1016/j.matlet.2024.137612

DO - 10.1016/j.matlet.2024.137612

M3 - Journal article

AN - SCOPUS:85206977625

SN - 0167-577X

VL - 378

JO - Materials Letters

JF - Materials Letters

M1 - 137612

ER -

Influence of strain rate on the tensile properties, misorientation distribution, and texture evolution of automotive-grade TRIP-assisted advanced high-strength steel

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

Other files and links

Fingerprint

Cite this