Relevance of Dynamic Strain Aging under Quasi-Static Tension on AISI 304 Stainless Steel
Sergio Neves Monteiro
Artur Camposo Pereira
Fábio de Oliveira Braga
Eduardo de Sousa Lima
Carlos Luis Ferreira
10.6084/m9.figshare.6151403.v1
https://scielo.figshare.com/articles/dataset/Relevance_of_Dynamic_Strain_Aging_under_Quasi-Static_Tension_on_AISI_304_Stainless_Steel/6151403
<div><p>The interval of existence of dynamic strain aging (DSA) in AISI type 304 austenitic stainless steel subjected to quasi-static tension tests, under strain rates from 3.5 x 10-2 to 3.5 x 10-4 s-1, in the temperature range from 25 to 800ºC was investigated. It was found that DSA occurs in the range extending from around 200 to 700ºC. Plastic instabilities associated with serrations, Portevin-Chatelier effect, allowed activation energies to be calculated and a possible mechanism of dislocation interaction with interstitial carbon atoms to be proposed. Significant increase in the ultimate strength, uniform elongation and work hardening demonstrate that DSA is a relevant phenomenon, which improves the high temperature mechanical properties of 304 steel.</p></div>
2018-04-18 02:43:29
Dynamic strain aging
austenitic stainless steel
work hardening