Fatigue Behavior of Weld Titanium Alloy Hydraulic Tube

DOI

10.2991/icadme-15.2015.306How to use a DOI?

Keywords

Fatigue damage; Argon arc welding; Microstructure gradient

Abstract

Titanium alloy hydraulic tubes were weld with gas tungsten arc welding method in this work. The microstructure of weld zone and heat affected zone are clarified with metallographic microscope, And followed by tensile test and fatigue test, with stress rate R is 0.1 and frequent is 10 Hz. It is found that, the microstructure in weld zone is coarse and uniform b grains about 1.5 mm and paralleled acicular martensite a phase. Mechanical test shows that cracks initiate at inner circle of pipeline and spread alone circle line promptly throughout the whole inner circle. Cracks initiation side appreance a clusters of slip bands, those may alone the coarse and laminated acicular martensite a phase in weld zone and heat affected zone.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yanpeng Feng
AU  - Haijun Tang
AU  - Ping Shu
PY  - 2015/10
DA  - 2015/10
TI  - Fatigue Behavior of Weld Titanium Alloy Hydraulic Tube
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1652
EP  - 1657
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.306
DO  - 10.2991/icadme-15.2015.306
ID  - Feng2015/10
ER  -