Si diffusion behavior during laser welding-brazing of Al alloy and Ti alloy with Al-12Si filler wire

2010 ◽  
Vol 20 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Shu-hai CHEN ◽  
Li-qun LI ◽  
Yan-bin CHEN ◽  
De-jian LIU
Keyword(s):  
Laser Welding ◽  
Al Alloy ◽  
Filler Wire ◽  
Ti Alloy ◽  
Diffusion Behavior

Microstructure and mechanical property improvement of dissimilar metal joints for TC4 Ti alloy to Nitinol NiTi alloy by laser welding

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Yan Zhang ◽  
DeShui Yu ◽  
JianPing Zhou ◽  
DaQian Sun ◽  
HongMei Li
Keyword(s):  
Tensile Strength ◽  
Laser Welding ◽  
Mechanical Performance ◽  
Niti Alloy ◽  
Welding Process ◽  
Ti Alloy ◽  
The One ◽  
Fusion Weld ◽  
Welding Processes ◽  
Cu Interlayer

Abstract To avoid the formation of Ti-Ni intermetallics in a joint, three laser welding processes for Ti alloy–NiTi alloy joints were introduced. Sample A was formed while a laser acted at the Ti alloy–NiTi alloy interface, and the joint fractured along the weld centre line immediately after welding without filler metal. Sample B was formed while the laser acted on a Cu interlayer. The average tensile strength of sample B was 216 MPa. Sample C was formed while the laser acted 1.2 mm on the Ti alloy side. The one-pass welding process involved the creation of a joint with one fusion weld and one diffusion weld separated by the remaining unmelted Ti alloy. The mechanical performance of sample C was determined by the diffusion weld formed at the Ti alloy–NiTi alloy interface with a tensile strength of 256 MPa.

Diffusion of Ce-Al Melts Measured by Sliding Cell Technique

2017 ◽  
Vol 898 ◽  
pp. 679-683
Author(s):  
Cheng Chen ◽  
Jin Liang Hu ◽  
Lang Xiang Zhong ◽  
Bo Zhang
Keyword(s):  
Activation Energy ◽  
Temperature Dependence ◽  
Strong Interaction ◽  
Al Alloy ◽  
Diffusion Behavior ◽  
Diffusion Constants

The diffusion behavior of Ce-Al alloy melt at three temperatures of 943K, 953K and 963K was investigated by sliding shear method. The inter-diffusion constants D show Arrhenius-type temperature dependence in the investigated regimes. Compared with the previous results achieved in Ce-Cu melt, liquid Ce-Al displays a much slower diffusion behavior and rather higher activation energy ED, which was caused by the strong interaction between Ce and Al.

Nd:YAG pulsed laser welding of TC4 Ti alloy to 301L stainless steel using Ta/V/Fe composite interlayer

2018 ◽  
Vol 212 ◽  
pp. 54-57 ◽  
Author(s):  
Y. Zhang ◽  
D.Q. Sun ◽  
X.Y. Gu ◽  
Z.Z. Duan ◽  
H.M. Li
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Pulsed Laser ◽  
Ti Alloy ◽  
Pulsed Laser Welding

Optimization of weld bead geometry in laser welding with filler wire process using Taguchi’s approach

2012 ◽  
Vol 44 (7) ◽  
pp. 2020-2025 ◽  
Author(s):  
Yang dongxia ◽  
Li xiaoyan ◽  
He dingyong ◽  
Nie zuoren ◽  
Huang hui
Keyword(s):  
Laser Welding ◽  
Weld Bead ◽  
Bead Geometry ◽  
Filler Wire ◽  
Weld Bead Geometry

Comparative Study of Surface Contaminated Layer on Titanium Aluminum Alloy and Titanium Alloy Investment Castings

2021 ◽  
Vol 1035 ◽  
pp. 602-607
Author(s):  
Zhi Hua Feng ◽  
Xian Fei Ding ◽  
Xin Feng ◽  
Hai Nan ◽  
Ai Bin Zhang
Keyword(s):  
Titanium Alloy ◽  
Aluminum Alloy ◽  
Comparative Study ◽  
Chemical Reaction ◽  
Microhardness Measurement ◽  
Ceramic Mold ◽  
Al Alloy ◽  
Ti Alloy ◽  
Titanium Aluminum ◽  
Alloy Castings

A comparative study of the surface contaminated layer formed by chemical reaction between ceramic-mold and titanium aluminum alloy castings or titanium alloy castings were carried out. The morphology, thickness and hardness of the surface contaminated layer were characterized by means of metalloscopy and microhardness measurement. The results show that surface contaminated layers formed between Ti-Al alloy castings and ceramic-mold, also formed between Ti alloy castings and ceramic-mold. The surface contaminated layers of Ti-Al alloy castings were continuous and compact, their thickness was about 0~90 μm. The surface contaminated layers of titanium alloy castings were not even, their thickness was 0~900 μm. Titanium alloy is more liable to react with the ceramic -mold than the Ti-Al alloy.

Microstructures and Properties of Ultra-Narrow-Gap Multi-Pass Welded Joint of 50 mm Turbine Rotor Steel by Laser Welding with Filler Wire

2015 ◽  
Vol 42 (2) ◽  
pp. 0203007
Author(s):  
赵勇 Zhao Yong ◽  
王清曌 Wang Qingzhao ◽  
黄坚 Huang Jian ◽  
吴毅雄 Wu Yixiong
Keyword(s):  
Laser Welding ◽  
Welded Joint ◽  
Turbine Rotor ◽  
Rotor Steel ◽  
Filler Wire ◽  
Narrow Gap

Numerical simulation of effect of filler wire melting and filling mode on molten pool in laser welding

2018 ◽  
Vol 47 (3) ◽  
pp. 306005
Author(s):  
彭进 Peng Jin ◽  
张文洁 Zhang Wenjie ◽  
王星星 Wang Xingxing ◽  
郭国全 Guo Guoquan ◽  
张芙蓉 Zhang Furong
Keyword(s):  
Numerical Simulation ◽  
Laser Welding ◽  
Molten Pool ◽  
Filler Wire
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