Microstructure, mechanical properties and shape memory effect of a new metastable Ti-W alloy

被引：5
作者：
Shao, Yang [1 ]
Zhu, Wendi [1 ]
Ge, Libo [1 ]
Cui, Liying [1 ]
Yu, Weikang [1 ]
Ma, Huan [2 ,3 ]
机构：
[1] Dalian Maritime Univ, Dept Mat Sci & Engn, Dalian 116026, Peoples R China
[2] Dalian Jiaotong Univ, Key Lab Near Net Forming Light Met Liaoning Prov, Dalian 116028, Peoples R China
[3] Dalian Jiaotong Univ, Engn Res Ctr Continuous Extrus, Minist Educ, Dalian 116028, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2024年 / 895卷
关键词：
Ti -W alloys; Metastable alloys; Martensitic transformation; Shape memory effect; TUNGSTEN COILS; TA ALLOYS; DEGRADATION; COMPOSITES; MARTENSITE; TRANSITION; BEHAVIOR;
D O I：
10.1016/j.msea.2024.146208
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of tungsten content on the microstructure, mechanical properties and shape memory effect of Ti-W alloys were investigated in detail. The results showed that the microstructures and phase constitutions of Ti-W alloys were sensitive to tungsten contents. Only hexagonal alpha ' phase was found in Ti-10W alloy, while orthorhombic alpha '' martensite formed in Ti-15W alloy. When the content of W increased to 20 wt.%, metastable beta phase was found. The content of alpha '' phase decreased with further increasing W content. Transmission electron microscope results confirmed the presence of omega phase in Ti-20W and Ti-25W. The density of Ti-25W alloy was 5.65 g/ cm3. The elastic modulus, yield strength and hardness of Ti-W alloys decreased firstly and then increased with the additions of W. Ti-15W alloy exhibited the lowest elastic modulus of 68.4 GPa and yield strength of 309 MPa among all studied alloys, while the tensile elongation monotonically increased with increasing W additions. The Ti-10W alloy showed the highest yield strength of 516 MPa and the lowest elongation of 7.4%. The X-ray diffraction and transmission electron microscope results also confirmed the occurrence of the stress induced martensitic transformation of beta to alpha '' during tensile tests for Ti-25W alloy. Shape memory effect was also observed in Ti-W alloys. The Ti-25W alloy showed the maximal shape memory recovery ratio of 22%.
引用
收藏
页数：7
相关论文
共 50 条
[41]   Dynamic properties of Ti-W alloys fabricated by Spark Plasma Sintering [J].
Lomnitz, Alon ;
Amir, Ben ;
Kalabukhov, Sergey ;
Hayun, Shmuel ;
Sadot, Oren .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2025, 35 :4634-4646
[42]   Effect of microstructure variations on the formation of deformation-induced martensite and associated tensile properties in a β metastable Ti alloy [J].
T. Grosdidier ;
Y. Combres ;
E. Gautier ;
M. -J. Philippe .
Metallurgical and Materials Transactions A, 2000, 31 :1095-1106
[43]   The effect of strain rate on mechanical properties and microstructure of a metastable FeMnCoCr high entropy alloy [J].
He, Z. F. ;
Jia, N. ;
Wang, H. W. ;
Liu, Y. ;
Li, D. Y. ;
Shen, Y. F. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 776
[44]   Influence of Aging on Microstructure, Martensitic Transformation and Mechanical Properties of NiTiRe Shape Memory Alloy [J].
El-Bagoury, Nader ;
Hessien, M. M. ;
Zaki, Z. I. .
METALS AND MATERIALS INTERNATIONAL, 2014, 20 (06) :997-1002
[45]   Effects of hot rolling on the microstructure, thermal and mechanical properties of CuAlBeNbNi shape memory alloy [J].
Pedrosa, Marcus T. M. A. ;
Silva, David D. S. ;
Brito, Ieverton C. A. ;
Alves, Ricardo F. ;
Caluete, Rafael E. ;
Gomes, Rodinei M. ;
Oliveira, Danniel F. .
THERMOCHIMICA ACTA, 2022, 711
[46]   Effects of electropulsing treatment on mechanical properties in Ti rich TiNi shape memory alloy [J].
Cao, W. H. ;
Zhang, J. L. ;
Shek, C. H. .
MATERIALS SCIENCE AND TECHNOLOGY, 2013, 29 (09) :1135-1138
[47]   Effect of Y addition on microstructure and martensitic transformation of a Ni-rich Ti–Ni shape memory alloy [J].
A. L. Liu ;
J. H. Sui ;
Y. C. Lei ;
W. Cai ;
Z. Y. Gao ;
L. C. Zhao .
Journal of Materials Science, 2007, 42 :5791-5794
[48]   A Review of Investigations on Microstructure and Mechanical Properties of the Present Achievements of the Ti-Au-based Shape Memory Alloys [J].
Chiu, Wan -Ting ;
Tahara, Masaki ;
Hosoda, Hideki .
ISIJ INTERNATIONAL, 2023, 63 (07) :1159-1171
[49]   Effect of Aging on Microstructure and Shape Memory Properties of a Ni-48Ti-25Pd (At. Pct) Alloy [J].
Sasaki, Taisuke T. ;
Hornbuckle, B. Chad ;
Noebe, Ronald D. ;
Bigelow, Glen S. ;
Weaver, Mark L. ;
Thompson, Gregory B. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2013, 44A (03) :1388-1400
[50]   The effect of TiC on microstructure and mechanical properties of Ti-5553 beta phase titanium alloy [J].
Ali, Tayyeb ;
Wang, Lin ;
Cheng, Xingwang ;
Gu, Di ;
Zhou, Zhe ;
Min, Xinhua .
MATERIALS & DESIGN, 2022, 214
12345