The Analysis of Physical-Structural Properties for AISI 321 Steel

The applications of stainless steels may be meeting in chemical industry, food industry, civil building, but present an increased interest also in machine constructions or household.This paper highlight the structural modifications obtained after temperature variations for AISI 321 stainless steel....

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Bibliographic Details
Published in:Key Engineering Materials 2016-07, Vol.700, p.70-77
Main Authors: Baitanu, Doru Dumitru, Galusca, Dan Gelu, Achitei, Dragos Cristian, Minciuna, Mirabela Georgiana
Format: Article
Language:English
Subjects:
Austenitic stainless steels
Buildings
Chemical industries
Construction equipment
Dissolution
Exploitation
Heat treatment
Meetings
Stainless steels
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Summary:The applications of stainless steels may be meeting in chemical industry, food industry, civil building, but present an increased interest also in machine constructions or household.This paper highlight the structural modifications obtained after temperature variations for AISI 321 stainless steel. The modifications of structure and proprieties can be induced by heat treatments applied to semi-products before or after the obtaining of final parts, but also by heating at regimes which respect the exploitation conditions of part. In the experiments, it is applied quenching to put into solution, with modification of final treatment temperature and maintaining time, aiming the dissolution of complex carbides and in this mode an easy processing. The treatment parameters were chosen, after the determination of alloying elements by AISI 321 samples, by optic spectrometry. The dilatometric analysis aimed to highlight the structural modifications, specific to thermal fatigue phenomenon, due to temperatures variations.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.700.70