Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Duplex stainless steel production and study of stress relief treatment
Submission Author:
Claudiney Sales Pereira Mendonça , MG
Co-Authors:
Bruno Gonçalves Andrade, Flavio Souza, Leonardo Albergaria, Claudiney Sales Pereira Mendonça, Adhimar Flavio Oliveira , Vander Ribeiro, Gilbert Silva
Presenter: Bruno Gonçalves Andrade
doi://10.26678/ABCM.COBEM2017.COB17-2840
Abstract
This study predicts the production and study of a UNS S31803 duplex stainless steel by powder metallurgy through the chips of reuse. The objective of this work is to analyze the influence of the strain relief treatment; thus, some samples were subjected to heating at 1050 ° C for 30 min, and cooled in water. The chips were milled with addition 3% vanadium carbide. The milling was realized using high energy ball milling in a planetary ball mill during. The milling time for 50 hours in an inert argon atmosphere to avoid oxidation of the powders, at a rotation of 350 rpm. A mass/sphere relationship of 1:20 was used. The particle size analysis and scanning electron microscopy were used in the characterization and identification of the particle size; it demonstrates a 67μm size. The technique of X ray diffraction was used in the identification of phases before and after the milling process. The stress relief treatment realized after the process it was obtained the highest values of density and lowest values of porosity.
Keywords
stainless steel;, High energy milling;, Strain Relief Treatment;, Chips;, Recycling
