Next Article in Journal
Effects of Welding Speed on Microstructure and Mechanical Property of Fiber Laser Welded Dissimilar Butt Joints between AISI316L and EH36
Next Article in Special Issue
Effects of Laser Offset and Hybrid Welding on Microstructure and IMC in Fe–Al Dissimilar Welding
Previous Article in Journal
Investigation on Deformation Mechanisms of NiTi Shape Memory Alloy Tube under Radial Loading
Previous Article in Special Issue
The Influence of Laser Welding on the Mechanical Properties of Dual Phase and Trip Steels
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessFeature PaperArticle
Metals 2017, 7(7), 269; doi:10.3390/met7070269

Microstructure and Mechanical Properties of Ti5553 Butt Welds Performed by LBW under Conduction Regime

1
Departmento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, LABCYP, Universidad de Cádiz. Escuela Superior de Ingeniería, Av. Universidad de Cádiz, 11519 Puerto Real, Cádiz, Spain
2
Department of Mechanical Engineering, AUT University, Auckland 1020, New Zealand
*
Author to whom correspondence should be addressed.
Received: 20 June 2017 / Revised: 7 July 2017 / Accepted: 10 July 2017 / Published: 13 July 2017
(This article belongs to the Special Issue Laser Welding)
View Full-Text   |   Download PDF [11583 KB, uploaded 13 July 2017]   |  

Abstract

Ti-5Al-5V-5Mo-3Cr (Ti5553) is a metastable β titanium alloy with a high potential use in the aeronautic industry due to its high strength, excellent hardenability, fracture toughness and high fatigue resistance. However, recent research shows this alloy has a limited weldability. Different welding technologies have been applied in the literature to weld this alloy, such as electron beam welding (EBW), gas tungsten arc welding (GTAW) or laser beam welding (LBW) under keyhole regime. Thus, in tensile tests, joints normally break at the weld zones, the strength of the welds being always lower than that of the base metal. In the present work, a novel approach, based on the application of LBW under conduction regime (with a High-Power Diode Laser, HPDL), has been employed for the first time to weld this alloy. Microstructure, microhardness and strength of obtained welds were analyzed and reported in this paper. LBW under conduction regime (LBW-CR) leads to welds with slightly higher values of Ultimate Tensile Strength (UTS) than those previously obtained with other joining processes, probably due to the higher hardness of the fusion zone and to lower porosity of the weld. View Full-Text
Keywords: laser beam welding; conduction regime; Ti-5Al-5V-5Mo-3Cr laser beam welding; conduction regime; Ti-5Al-5V-5Mo-3Cr
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Sánchez-Amaya, J.M.; Pasang, T.; Amaya-Vazquez, M.R.; Lopez-Castro, J.D.D.; Churiaque, C.; Tao, Y.; Botana Pedemonte, F.J. Microstructure and Mechanical Properties of Ti5553 Butt Welds Performed by LBW under Conduction Regime. Metals 2017, 7, 269.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top