Results 41 to 50 of about 3,427 (205)

Elimination of misrun and gas hole defects of investment casting TiAl alloy turbocharger based on numerical simulation and experimental study [PDF]

China Foundry, 2020
Casting technology of thin-wall TiAl alloy turbochargers was studied by investment casting and numerical simulation. Misruns and gas holes were the main defects observed in preliminary work due to the poor fluidity of alloy, and to gas entrapment.
Jun Zhao, Zhi-yong Zhang, Shi-bing Liu
doaj   +1 more source

Interfacial microstructure and shear strength of Ti-6Al-4V/TiAl laminate composite sheet fabricated by hot packed rolling

, 2011
A two layer Ti-6Al-4V(wt%)/Ti-43Al-9V-Y(at%) laminate composite sheet with a uniform interfacial microstructure and no discernible defects at the interfaces has been prepared by hot-pack rolling, and its interfacial microstructure and shear strength were
Chen, Yuyong, Yuyong Chen, Kong, Fantao, Fantao Kong, Deliang Zhang, Zhang, Deliang   +5 more
core   +1 more source

Non-isothermal oxidation characteristic of titanium-aluminium intermetallic alloys

Cailiao gongcheng
The non-isothermal oxidation behaviors of TiAl and Ti3Al alloys at 1450-1570 ℃ in a pure oxygen atmosphere were studied by using TGA/DSC simultaneous thermal analysis, SEM and EPMA characterizations and theoretical calculation.
OUYANG Peixuan, CHEN Hang, SUN Ruochen, LI Peijie, MI Guangbao   +4 more
doaj   +1 more source

Interactions between TiAl Alloy and Different Oxide Moulds under High-temperature and Long-time Condition

High Temperature Materials and Processes, 2013
Interactions between Ti-47Al-2Cr-2Nb (at.%) alloy and alumina, zirconia and yttria moulds were studied under high-temperature and long-time condition, and the reaction mechanisms were explored.
Cui Yongshuang, Tang Xiaoxia, Gao Ming, Ma Limin, Hu Zhang   +4 more
doaj   +1 more source

Effects of Powder Preparation and Sintering Temperature on Properties of Spark Plasma Sintered Ti-48Al-2Cr-8Nb Alloy

Metals, 2019
TiAl alloy has become a key element in aerospace and automotive engine development due to its favorable high temperature mechanical properties and low density.
Zhenhua Wang, Haoxuan Sun, Yulei Du, Juntang Yuan   +3 more
doaj   +1 more source

Microstructure and High-Temperature Compressive Properties of a Core-Shell Structure Dual-MAX-Phases-Reinforced TiAl Matrix Composite

Crystals
As an advanced high-temperature structural material, TiAl alloy, is often used in the manufacturing of hot-end components of aviation and aerospace engines.
Shiqiu Liu, Huijun Guo
doaj   +1 more source

Microstructure and shear property of high-temperature brazing of TiAl alloy and 316L stainless steel with a Ni-based amorphous filler

Frontiers in Materials, 2022
High-quality joining of TiAl alloy to stainless steel is of great significance to the aerospace field. However, the hybrid structure of TiAl and 316L always suffers from insufficient strength when serving at elevated temperatures.
Shun Guo, Shun Guo, Xiaopeng Li, Xiaopeng Li, Kewei Dong, Kewei Dong, Jieren Gu, Jieren Gu, Qi Zhou, Qi Zhou, Kehong Wang, Kehong Wang   +11 more
doaj   +1 more source

The Role of Boron in TiAl Alloy Development – A Review [PDF]

, 2016
Boron was found to be a unique grain refiner in cast TiAl alloys in the beginning of 1990s and has become an element in most of the TiAl alloys developed to date.
Hu, Dawei; id_orcid
core   +1 more source

Experimental investigation of laser peening on TiAl alloy microstructure and properties

, 2015
In order to study the effect of laser peening on microstructures and properties of TiAl alloy, TiAl alloy samples were treated by Nd:YAG laser system with the wavelength of 1064nm, pulse-width of 18ns, and pulse-energy of 0-10J.
Gao Y(高宇), Zhao JB(赵吉宾), Qiao HC(乔红超)   +2 more
core   +2 more sources

Positive effects of pre-oxidation on high temperature oxidation behavior of TiAl composites with multilayered structure

Journal of Materials Research and Technology
In order to study the pre-oxidation on high temperature oxidation behavior of TiAl composites with high-efficiency, the TiAl composites with multilayered structure were successfully prepared via spark plasma sintering (SPS) by introducing 0.5 wt% BN, 0.5 
Junqin Wu, Yupeng Wang, Genhua Zeng, Xiaohong Wang, Lei Li, Meng Li, Tengfei Ma   +6 more
doaj   +1 more source