Effect of single alloying element (Ti, Nb, V, Cu) on microstructure and mechanical properties of dissimilar TiAl/Ni-based superalloy laser joints

2022 ◽  
Vol 146 ◽  
pp. 107575
Author(s):  
Xiaolong Cai ◽  
Hongmei Li ◽  
Bingkui Ji ◽  
Mingda Li ◽  
Xueping Yao ◽  
...  
2015 ◽  
Vol 30 (14) ◽  
pp. 2258-2269 ◽  
Author(s):  
Safaa N. Saud ◽  
Esah Hamzah ◽  
Tuty Abubakar ◽  
Mustafa K. Ibrahim ◽  
Abdollah Bahador

Abstract


2013 ◽  
Vol 395-396 ◽  
pp. 243-250 ◽  
Author(s):  
Li Zhou ◽  
Duo Liu ◽  
Hui Jie Liu ◽  
Lin Zhi Wu

The α + β dual-phase titanium alloy, Ti-6Al-4V, was thermohydrogen processed with 0.1, 0.3 and 0.5 wt% hydrogen. Hydrogen was removed from the hydrogenated titanium alloy by vacuum annealing. Microstructure and mechanical properties of the hydrogenated and dehydrogenated titanium alloy were investigated. Effect of hydrogen as a temporary alloying element on the microstructure and mechanical properties of Ti-6Al-4V titanium alloy was systematically discussed. It was found that hydrogen stabled the β phase and leaded to the formation of α martensite as well as δ hydride in the hydrogenated titanium alloy. Mechanical properties of hydrogenated titanium alloy deteriorated with increasing hydrogenation content. The α martensite and δ hydride decomposed during the dehydrogenation and the dehydrogenated titanium alloy only consisted of α and β phases. The mechanical properties of hydrogenated titanium alloy with different hydrogen content were recovered and were tend to be consistent after dehydrogenation.


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