CHARACTERIZATION OF TITANIUM WELDED JOINTS BY THE ORBITAL GAS TUNGSTEN ARC WELDING PROCESS FOR AEROSPACE APPLICATION. doi: 10.5028/jatm.2010.02026710

Autor: José A. Orlowski de Garcia, Gerson Luiz de Lima, Wilson D. Bocallão Pereira, Valdir Alves Guimarães, Carlos de Moura Neto, Ronaldo Pinheiro R. Paranhos

Publikováno v: Journal of Aerospace Technology and Management, Vol 2, Iss 2 (2011)

In this work, three welding programs for orbital gas tungsten arc welding (GTAW), previously developed, were used, using pulsed current and increasing speed (#A), constant current (#B) and pulsed current and decreasing current (#C). One of these shou

Externí odkaz: https://doaj.org/article/3d403a7e413f4b90aae8f6fa86216eee

Avaliação e comparação microestrutural e das propriedades mecânicas entre um aço carbono e um aço microligado para aplicação em rodas ferroviárias

Autor: Cristina Sayuri Fukugauchi, Luiz Gustavo de Oliveira, Antonio dos Reis de Faria, Valdir Alves Guimarães

Publikováno v: Matéria (Rio de Janeiro), Volume: 25, Issue: 2, Article number: e-12647, Published: 21 AUG 2020
Matéria (Rio de Janeiro) v.25 n.2 2020
Matéria (Rio de Janeiro. Online)
instacron:RLAM

RESUMO O setor ferroviário sempre tem estado em busca de um aumento do rendimento de seus produtos envolvidos no transporte de cargas e passageiros. Uma das formas de aumentar a eficiência deste tipo de transporte se baseia no aumento da velocidade

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14a1916995af427743545fdfb39b017c
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762020000200363&lng=en&tlng=en

An investigation on sliding wear behavior of PVD coatings

Autor: Valdir Alves Guimarães, Midori Yoshikawa Pitanga Costa, Herman Jacobus Cornelis Voorwald, Maria Odila Hilário Cioffi

Publikováno v: Tribology International. 43:2196-2202

Ti–6Al–4V alloy rubbing against aluminum–bronze 630 was evaluated in this work. High velocity oxygen fuel (HVOF) WC–10%Co–4%Cr thermal sprayed and TiN, CrN and DLC physical vapor deposition (PVD) coatings were applied to increase titanium s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c34c5b7f79a7272849f9eac7f358780
https://doi.org/10.1016/j.triboint.2010.07.002

Sistema de baixo custo para nucleação de pré-trincas por fadiga em corpos de prova de tenacidade à fratura

Autor: Luis Rogerio de Oliveira Hein, Valdir Alves Guimarães, J. Zangrandi Filho

Publikováno v: Materials Research, Volume: 4, Issue: 3, Pages: 205-209, Published: JUL 2001
SciELO
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Materials Research, Vol 4, Iss 3, Pp 205-209 (2001)
Materials Research v.4 n.3 2001
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL

Made available in DSpace on 2021-07-14T10:28:02Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-07. Added 1 bitstream(s) on 2021-07-14T11:31:00Z : No. of bitstreams: 1 S1516-14392001000300011.pdf: 2371404 bytes, checksum: f5b200a5887eb8eb51c46

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb3d34a388905d819d0992cd73735ff2
https://doi.org/10.1590/s1516-14392001000300011

Fatigue behavior of PVD coated Ti-6Al-4V alloy

Autor: Maria Odila Hilário Cioffi, M. L. R. Venditti, Midori Yoshikawa Pitanga Costa, Herman Jacobus Cornelis Voorwald, R. Ruas, Valdir Alves Guimarães

Publikováno v: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP

Made available in DSpace on 2013-09-27T14:53:59Z (GMT). No. of bitstreams: 1 WOS000288732400001.pdf: 2134967 bytes, checksum: f446a8ccee9e8f78bafda853ab1e17b1 (MD5) Previous issue date: 2011-06-01 Made available in DSpace on 2013-09-30T18:11:48Z (GMT

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4de801431c3034609d340631858bd3e8