ISSN 2594-5327
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Abstract
Stainless shape memory alloys (SMA’s) have been studied since the 90’s. The Fe-Mn-Si-Cr-Ni-Co SMA used in this work was processed by wire drawing varying the area reductions, AR’s (14%, 39% and 57%) and annealing temperature from 350°C to 1050°C during 1 hour. The microstructural characterization was performed by optical microscopy (OM), scanning electron microscopy (SEM) and Vickers hardness testing. The results showed that the increase of area reduction promoted increase in hardness for the cold drawn and annealed conditions. Results show that the precipitation became noticeable at 450°C and 550°C for samples with AR=39% and 57%, respectively.
Stainless shape memory alloys (SMA’s) have been studied since the 90’s. The Fe-Mn-Si-Cr-Ni-Co SMA used in this work was processed by wire drawing varying the area reductions, AR’s (14%, 39% and 57%) and annealing temperature from 350°C to 1050°C during 1 hour. The microstructural characterization was performed by optical microscopy (OM), scanning electron microscopy (SEM) and Vickers hardness testing. The results showed that the increase of area reduction promoted increase in hardness for the cold drawn and annealed conditions. Results show that the precipitation became noticeable at 450°C and 550°C for samples with AR=39% and 57%, respectively.
Keywords
Stainless SMA; Wire drawing; Annealing; Hardness testing.
Stainless SMA; Wire drawing; Annealing; Hardness testing.
How to refer
Andrade, Elaine Cristina;
Bernardi, Heide Heloise;
Naito, Leonardo Kenji Fudo;
Otubo, Jorge.
EFFECT OF ANNEALING TEMPERATURE ON THE
MICROSTRUCTURE AND HARDNESS OF Fe-Mn-Si-Cr-
Ni-Co SHAPE MEMORY ALLOY PROCESSED BY WIRE
DRAWING
,
p. 4285-4294.
In: 67º Congresso da ABM - Internacional / 12º ENEMET - Encontro Nacional de Estudantes de Engenharia Metalúrgica, de Materiais e de Minas,
Rio de Jabeiro,
2012.
ISSN: 2594-5327
, DOI 10.5151/2594-5327-22345
