Effect of treatment in weld surface on fatigue and fracture behavior of titanium alloys welded joints by vacuum electron beam welding

Peng Liu; Ge ming Zhang; T. Zhai; Ke yun Feng

doi:10.1016/j.vacuum.2017.04.019

Effect of treatment in weld surface on fatigue and fracture behavior of titanium alloys welded joints by vacuum electron beam welding

Peng Liu, Ge ming Zhang, T. Zhai, Ke yun Feng

Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The effect of treatment in weld surface on four-point bend fatigue properties and fracture characteristic of Ti–6.5Al–2Zr–1Mo–1V alloy by vacuum electron beam welding were tested and analyzed. When the excess weld metal and excess penetration are removed, the high fatigue strength of joints can be obtained. When the excess weld metal and excess penetration were not removed, the fatigue strength of joints is about 40% of yield strength of base metal. Two kinds of fatigue crack initiations can be observed under the upper surface of joint, which show the obvious local tearing fracture morphology and bulk inclusions or compounds morphology.

Original language	English
Pages (from-to)	176-180
Number of pages	5
Journal	Vacuum
Volume	141
DOIs	https://doi.org/10.1016/j.vacuum.2017.04.019
State	Published - Jul 1 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

Fatigue
Fracture
Titanium alloy
Vacuum electron beam welding

ASJC Scopus subject areas

Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films

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10.1016/j.vacuum.2017.04.019

Cite this

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title = "Effect of treatment in weld surface on fatigue and fracture behavior of titanium alloys welded joints by vacuum electron beam welding",

abstract = "The effect of treatment in weld surface on four-point bend fatigue properties and fracture characteristic of Ti–6.5Al–2Zr–1Mo–1V alloy by vacuum electron beam welding were tested and analyzed. When the excess weld metal and excess penetration are removed, the high fatigue strength of joints can be obtained. When the excess weld metal and excess penetration were not removed, the fatigue strength of joints is about 40% of yield strength of base metal. Two kinds of fatigue crack initiations can be observed under the upper surface of joint, which show the obvious local tearing fracture morphology and bulk inclusions or compounds morphology.",

keywords = "Fatigue, Fracture, Titanium alloy, Vacuum electron beam welding",

author = "Peng Liu and Zhang, {Ge ming} and T. Zhai and Feng, {Ke yun}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

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doi = "10.1016/j.vacuum.2017.04.019",

language = "English",

volume = "141",

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T1 - Effect of treatment in weld surface on fatigue and fracture behavior of titanium alloys welded joints by vacuum electron beam welding

AU - Liu, Peng

AU - Zhang, Ge ming

AU - Zhai, T.

AU - Feng, Ke yun

PY - 2017/7/1

Y1 - 2017/7/1

N2 - The effect of treatment in weld surface on four-point bend fatigue properties and fracture characteristic of Ti–6.5Al–2Zr–1Mo–1V alloy by vacuum electron beam welding were tested and analyzed. When the excess weld metal and excess penetration are removed, the high fatigue strength of joints can be obtained. When the excess weld metal and excess penetration were not removed, the fatigue strength of joints is about 40% of yield strength of base metal. Two kinds of fatigue crack initiations can be observed under the upper surface of joint, which show the obvious local tearing fracture morphology and bulk inclusions or compounds morphology.

AB - The effect of treatment in weld surface on four-point bend fatigue properties and fracture characteristic of Ti–6.5Al–2Zr–1Mo–1V alloy by vacuum electron beam welding were tested and analyzed. When the excess weld metal and excess penetration are removed, the high fatigue strength of joints can be obtained. When the excess weld metal and excess penetration were not removed, the fatigue strength of joints is about 40% of yield strength of base metal. Two kinds of fatigue crack initiations can be observed under the upper surface of joint, which show the obvious local tearing fracture morphology and bulk inclusions or compounds morphology.

KW - Fatigue

KW - Fracture

KW - Titanium alloy

KW - Vacuum electron beam welding

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U2 - 10.1016/j.vacuum.2017.04.019

DO - 10.1016/j.vacuum.2017.04.019

M3 - Article

AN - SCOPUS:85017534470

SN - 0042-207X

VL - 141

SP - 176

EP - 180

JO - Vacuum

JF - Vacuum

ER -

Effect of treatment in weld surface on fatigue and fracture behavior of titanium alloys welded joints by vacuum electron beam welding

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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