| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7899382 | Journal of Materials Research and Technology | 2017 | 5 Pages |
Abstract
The mechanical behavior and the strengthening mechanism of stainless steel welded joints at 600 °C have been investigated. The welds were composed of AISI 304 stainless steel, as base metal, and niobium containing AISI 347 stainless steel, as weld metal. The investigation was conducted by means of creep tests. The welded specimens were subjected to both high temperature (600 °C) and long periods (up to 2000 h) under constant load, and both mechanical properties and microstructural changes in the material were monitored. It was found that the exposure of the material at 600 °C under load contributes to a strengthening effect on the weld. The phenomenon might be correlated with an accelerated process of second phase precipitation hardening.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Sergio Neves Monteiro, Lucio Fabio Cassiano Nascimento, Ãdio Pereira Jr., Fernanda Santos da Luz, Eduardo Sousa Lima, Fábio de Oliveira Braga,