Results 171 to 180 of about 35,342 (237)

On the influence of ultrasonic surface rolling process on surface integrity and fatigue performance of Ti-6Al-4V alloy

Surface & Coatings Technology, 2019
An ultrasonic surface rolling process (USRP) is a novel mechanical surface treatment technique for enhancing the fatigue performance of metallic materials.
Cheng-song Liu, Dao-xin Liu, Xiao-hua Zhang, G. He, Xingchen Xu, Ni Ao, Amin Ma, Dan-yang Liu   +7 more
semanticscholar   +1 more source

Fretting Fatigue of Ti-6Al-4V Alloy

1982
A study of the fretting fatigue process in sheet specimens of Ti-6Al-4V alloy has been carried out. In the fretting experiments two fretting pads, also of Ti-6Al-4V, were clamped to the fatigue specimen by a calibrated proving ring. In the experiments the fretting pressure and the fatigue stress amplitude were varied.
C Lutynski, G Simansky, AJ McEvily
openaire   +1 more source

Gradient nanostructure evolution and phase transformation of α phase in Ti-6Al-4V alloy induced by ultrasonic surface rolling process

Materials Science & Engineering: A, 2019
The gradient nanostructure evolution and the mechanism governing this evolution of α phase in Ti-6Al-4V alloy induced by ultrasonic surface rolling process were investigated.
Ni Ao, Dao-xin Liu, Xingchen Xu, Xiao-hua Zhang, Dan-yang Liu   +4 more
semanticscholar   +1 more source

High-temperature mechanical behavior of Ti-6Al-4V alloy and TiC p /Ti-6Al-4V composite

Metallurgical and Materials Transactions A, 1999
Mechanical behaviors at 538 °C, including tensile and creep properties, were investigated for both the Ti-6Al-4V alloy and the Ti-6Al-4V composite reinforced with 10 wt pct TiC particulates fabricated by cold and hot isostatic pressing (CHIP). It was shown that the yield strength (YS) and ultimate tensile strength (UTS) of the composite were greater ...
J. H. Zhu, P. K. Liaw, J. M. Corum, H. E. McCoy   +3 more
openaire   +1 more source

Improving fatigue performance of Ti-6Al-4V alloy via ultrasonic surface rolling process

Journal of Materials Science & Technology, 2019
The effect of a gradient nanostructured (GNS) surface layer obtained by ultrasonic surface rolling process (USRP) on the fatigue behavior of Ti-6Al-4 V alloy has been studied in this paper.
Cheng-song Liu, Dao-xin Liu, Xiao-hua Zhang, Dan-yang Liu, Amin Ma, Ni Ao, Xingchen Xu   +6 more
semanticscholar   +1 more source

Phase Transformation In Ti-6al-4v Alloys

Proceedings, annual meeting, Electron Microscopy Society of America, 1972
The Ti-6 wt.% Al-4 wt.% V commercial alloys have exhibited an improved formability at cryogenic temperature when the alloys were heat-treated prior to the tests. The author was interested in further investigating this unusual ductile behavior which may be associated with the strain-induced transformation or twinning of the a phase, enhanced at lower ...
openaire   +1 more source

Thermo Physical Property Measurement of Ti-6Al-4V Alloy and Ti-6Al-4V/Nano SiCp Composites

International Review of Mechanical Engineering (IREME), 2014
The intention of a thermal-control structure is to sustain all of a spacecraft's components within the permissible temperature limits for all working modes of the vehicle in all of the thermal environments it may be exposed. Metal-matrix composites can endure the tremendous conditions often stumble upon in space environment. The metal-matrix composites
S. Krishna Mohan, S. Ramanathan, V. Ramakrishnan   +2 more
openaire   +1 more source

Strong and Ductile Ti-6Al-4V Alloy Produced by Hot Pressing of Ti-6Al-4V Swarf

JOM, 2019
Ti-6Al-4V (Ti-64) swarf is produced every day in commercial operations but its direct use for the fabrication of strong and ductile Ti-6Al-4V alloy is seldom reported. This study consolidated as-received Ti-64 swarf into near fully dense Ti-6Al-4V alloy by hot pressing.
F. Yang, Z. Q. Pi, Q. Y. Zhao, S. Raynova, Q. Liu, K. Sharp, M. Brandt, L. Bolzoni, M. Qian   +8 more
openaire   +1 more source

Laser surface melting of Ti-6Al-4V alloy

Journal of Materials Science, 1992
Surface hardening of Ti-6Al-4V alloy with laser surface melting (LSM) in a nitrogen atmosphere has been studied. In LSM, hardness increased almost three-fold in comparison to that of the substrate, the latter having a Vickers hardness of 350, by the formation of TiN in the range of 100μm of melt depth.
O. V. Akgun, O. T. Inal
openaire   +1 more source

Effects of subtransus heat treatments on microstructure features and mechanical properties of wire and arc additive manufactured Ti–6Al–4V alloy

, 2020
Post heat treatment is necessary to optimize the microstructure of additive manufactured Ti–6Al–4V to satisfy the aeronautical criterion. However, the relationship between the unique heat treated microstructure features and corresponding mechanical ...
Jian Wang, Xin Lin, Meng Wang, Jiaqiang Li, Chong Wang, Weidong Huang   +5 more
semanticscholar   +1 more source