Analysis of Strain Hardening Processes of AISI 316 LN Austenitic Stainless Steel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000021" target="_blank" >RIV/26722445:_____/25:N0000021 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/18/18/4268" target="_blank" >https://www.mdpi.com/1996-1944/18/18/4268</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma18184268" target="_blank" >10.3390/ma18184268</a>

Result language

angličtina

Original language name

Analysis of Strain Hardening Processes of AISI 316 LN Austenitic Stainless Steel

Original language description

The primary objective of this contribution is to numerically and graphically evaluate engineering stress–strain curves, transform them into true stress–strain curves, and de-scribe the key points of material processed by cold rolling with strains of εRoll = 0%, 10%, 30%, and 50%. The initial and final conditions for uniform plastic deformations have been described. The initial point of uniform deformation lies above the onset yield strength value (σT,S > RP0,2). The necking point, as the final point of uniform deformation, was determined as the intersection point of the curves of the true stress–strain and strain hardening rate. The strain hardening coefficient and the recovery rate, as a function of cold rolling deformations, were derived. Convex polyhedra were derived which describe the dependencies of the development of maximal strain hardening rate values (θMax) and initial strain hardening rates (θ0) as a function of cold rolling deformations and the diameter of grain. The decisive point at which the curves showed a local maximum was a cold rolling deformation εRoll = 30%. The saturation stress required to initiate dynamic recovery of the microstructure is significantly higher than the stress necessary for necking (σT,Sat > σT,Neck). The saturation strain required to initiate dynamic recovery of the microstructure is significantly higher than the strain needed for necking formation (εT,Sat > εT,Neck).

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials

ISSN

—

e-ISSN

1996-1944

Volume of the periodical

18

Issue of the periodical within the volume

18

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

1-15

UT code for WoS article

001581642500001

EID of the result in the Scopus database

2-s2.0-105017124973