Author
Seyedmohammadi, Seyedveghar, Radi, Amin, Yapıcı, Güney Güven
Publication Date
2021
Publication Place
-
Trans Tech Publications Ltd
Subject
Aging, Copper, Hardness, Microstructure, Phase transformation, Rolling, Shape memory alloy
Type
Document
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-303573835-3
Record ID
d33b745f-317f-4ecb-a91c-401f3d4771f5
Library Location
Mechanical Engineering
Date
2021
Notes
National Natural Science Foundation of China ; Science and Technology Department of Zhejiang Province
Sample Text
In the present study, the effects of artificial aging heat treatment on the transformation temperatures and hardness of Cu-Al-Mn shape memory alloy have been investigated. The aging processes have been performed on the one-time re-melted and 90% rolled samples. Differential scanning calorimetry reveals that reverse transformation is present for the re-melted sample which is aged at 400°C. However, in 90% rolled condition, this transformation takes place at 200°C and 300°C. Hardness examination shows that the aged specimens possess higher values in hardness in comparison to un-aged samples at all studied temperatures. Although, the peak-aged condition was demonstrated at 300°C for the re-melted sample, the rolled sample displayed increased hardness levels up to 500o C. Based on the DSC measurements and microstructural observations, it can be asserted that the thermo-mechanical processing including rolling plus aging at 300o C provides favorable transformation characteristics for shape memory behavior.
DOI
10.4028/www.scientific.net/KEM.882.21
Cilt
882 KEM
