| Texto completo | |
| Autor(es): |
Conde, Fabio Faria
[1]
;
Escobar, Julian David
[2]
;
Rodriguez, Johnnatan
[3]
;
Afonso, Conrado Ramos Moreira
[4]
;
Oliveira, Marcelo Falcao
[1]
;
Avila, Julian Arnaldo
[5, 6]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Dept Mat Engn, Av Joao Dagnone, 1100 Jd Sta Angelina, BR-13563120 Sao Carlos - Brazil
[2] Univ Sao Paulo, Met & Mat Engn Dept, 10 Av Prof Mello Moraes 2463, BR-05508030 Sao Paulo, SP - Brazil
[3] EIA Univ, Km 2 200 Via Aeropuerto Jose Maria Cordova, Envigado 055428, Antioquia - Colombia
[4] Fed Univ Sao Carlos UFSCar, Grad Program Mat Sci & Engn, PPG CEM, BR-13565905 Sao Carlos, SP - Brazil
[5] Sao Paulo State Univ UNESP, Campus Sao Joao Boa Vista, Av Prof Isette Correa F, BR-13876750 Sao Joao Da Boa Vista, SP - Brazil
[6] Univ Autonoma Occidente, 2, Calle 25, Via Cali Puerto Tejada 115-8 Km 2, Cali, Valle Del Cauca - Colombia
Número total de Afiliações: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Materials Engineering and Performance; v. 30, n. 7, SI, p. 4925-4936, JUL 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Maraging 300 is an ultrahigh strength steel with significant alloy addition, resulting in a martensitic matrix hardened by precipitation through aging treatment. In these steels, intercritical tempering can provide reverted austenite and precipitation of intermetallic products, increasing the ductility of additively manufactured parts due to austenite presence. Studies deal with postprocessing of additive manufactured parts of maraging steel; however, few focused on phases evolution during the heat treatments and their mechanical response. In the present work, a maraging 300 steel processed by laser-based powder-bed fusion was studied with a focus on microstructural and mechanical properties after applying several postprocessing heat treatments. Tensile tests assessed the mechanical properties, and the microstructure was analyzed by scanning and transmission electron microscopy. A synchrotron beamline with x-ray diffraction was used to conduct in situ measurements of martensite and austenite evolution. The in situ phase evolution revealed that isothermal heat treatments were efficient in promoting martensite-to-austenite reversion. Likewise, the presence of austenite significantly enhanced the ductility, however, at some mechanical strength expense. (AU) | |
| Processo FAPESP: | 17/17697-5 - Avaliação mecânica e microestrutural de peças fabricadas por manufatura aditiva no aço 18%Ni Maraging 300 com aplicação aeronáutica. |
| Beneficiário: | Julian Arnaldo Avila Diaz |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 08/57860-3 - BIOFABRIS - Instituto de Biofabricação |
| Beneficiário: | Rubens Maciel Filho |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 19/00691-0 - Avaliação microestrutural de partes fabricadas por manufatura aditiva para aplicação aeronáutica |
| Beneficiário: | Julian Arnaldo Avila Diaz |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |