Effect Of Aging Time On Mechanical And Functional Properties Of Graded Ti-Ni Alloy Joined By Laser Additive Manufacturing

Abstract

In this work, a functionally graded Ti-Ni alloy was fabricated using directed energy deposition by depositing Ti-rich Ti-Ni alloy section on near-equiatomic TiNi substrate to demonstrate multi-sectional microstructural, thermal, and mechanical behaviors for multifunctionality. The aging effect at 400 °C with various heat treatment time durations on the graded Ti-Ni alloy was applied. Materials characterization indicated that the two sections demonstrate different responses under various aging treatments, which provided more possible combinations of functional properties in a joined component. This work shows a powerful potential application in using directed energy deposition to fabricate multifunctional smart alloys followed by aging treatment.

Department(s)

Mechanical and Aerospace Engineering

Comments

National Science Foundation, Grant CMMI 1625736

Keywords and Phrases

Directed Energy Deposition; Functionally Graded Materials; Metal Joining; Shape Memory Alloy; TiNi Alloy

International Standard Serial Number (ISSN)

2213-8463

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Elsevier, All rights reserved.

Publication Date

01 Sep 2023

Share

 
COinS