Influence of Processing Parameters on Laser-Assisted Reactive Sintering of a Mixture of Ni and Ti Powders-Reference-Cited by-同舟云学术

Influence of Processing Parameters on Laser-Assisted Reactive Sintering of a Mixture of Ni and Ti Powders

Published:2024-07-15 Issue:3 Volume:5 Page:1451-1463
ISSN:2673-4117
Container-title:Eng
language:en
Short-container-title:Eng

Author:

Le Sénéchal Naiara Vieira¹^ORCID,da Silveira Pedro Henrique Poubel Mendonça¹^ORCID,Rodrigues Patrícia Freitas²^ORCID,Gonçalves Danilo Abílio Corrêa¹^ORCID,Dyer Silvelene Alessandra Silva³^ORCID,Teixeira Rodolfo da Silva⁴^ORCID,de Siqueira Rafael Humberto Mota³,de Lima Milton Sergio Fernandes³^ORCID,Bayerlein Daniel Leal⁵,Paula Andersan dos Santos¹

Affiliation:

1. Department of Materials Science, Military Institute of Engineering—IME, Praça General Tibúrcio 80, Urca, Rio de Janeiro 22290-270, Brazil

2. University of Coimbra, CEMMPRE, ARISE, Department of Mechanical Engineering, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal

3. Instituto de Estudos Avançados (IEAv), Trevo Coronel Aviador José Alberto Albano do Amarante 01, São José dos Campos 12228-001, Brazil

4. CentraleSupélec, ENS Paris-Saclay, CNRS, LMPS-Laboratoire de Mécanique Paris-Saclay, Université Paris-Saclay, 4 Avenue des Sciences, 91190 Gif-sur-Yvette, France

5. Technological Research Institute of the State of São Paulo, Avenida Professor Almeida Prado, 532, Butantã, São Paulo 05508-901, Brazil

Abstract

Additive manufacturing (AM) plays a crucial role in the development of NiTi alloys, enabling the creation of complex and customized structures while optimizing properties for various biomedical and industrial applications. The aim of this paper was to investigate the influence of laser scanning speed on laser-assisted reactive sintering of a mixture of No and Ti powders. The samples were sintered at two different beam speeds, 4 and 5 4 mm/s and their morphological and microstructural characteristics were investigated. Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX) and X-ray diffraction (XRD) analyses revealed the presence of intermetallic compounds rich in Ni and Ti for both scanning speeds; however, the scanning speed of 5 mm/s produced a microstructure with greater porosity, leading to a sintered body with poorer consolidation. Thus, employing a slower beam scanning of 4 mm/s seems to be a better alternative in the laser-assisted reactive sintering of NiTi alloys.

Publisher

MDPI AG

Link

https://www.mdpi.com/2673-4117/5/3/77/pdf

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