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

被引：2
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
[31]   Effect of Yttrium on the microstructure, phase transformation and superelasticity of a Ti-Ni-Cu shape memory alloy [J].
Zhao, Guangwei ;
Chen, Jian ;
Ding, Chong ;
Fang, Dong ;
Huang, Caihua ;
Ye, Xicong .
VACUUM, 2020, 177
[32]   Effect of different stages of deformation on the microstructure evolution of Ti-rich NiTi shape memory alloy [J].
Tadayyon, Ghazal ;
Guo, Yina ;
Mazinani, Mohammad ;
Zebarjad, Seyed Mojtaba ;
Tiernan, Peter ;
Tofail, Syed A. M. ;
Biggs, Manus J. P. .
MATERIALS CHARACTERIZATION, 2017, 125 :51-66
[33]   The Enhanced Shape Memory Effect and Mechanical Properties in Thermomechanically Processed Semi-Equiatomic NiTi Shape Memory Alloy [J].
Shamsolhodaei, A. ;
Zarei-Hanzaki, A. ;
Abedi, H. R. .
ADVANCED ENGINEERING MATERIALS, 2016, 18 (02) :251-258
[34]   Effect of Ti addition on the structural, mechanical and damping properties of magnetron sputtered Ni-Mn-Sn ferromagnetic shape memory alloy thin films [J].
Choudhary, Nitin ;
Kaur, Davinder .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2012, 45 (49)
[35]   Effect of precipitation on the microstructure and the shape memory response of the Ni50.3Ti29.7Zr20 high temperature shape memory alloy [J].
Evirgen, A. ;
Karaman, I. ;
Noebe, R. D. ;
Santamarta, R. ;
Pons, J. .
SCRIPTA MATERIALIA, 2013, 69 (05) :354-357
[36]   The role of deformation in the microstructure, mechanical properties, and shape memory characteristics of Cu-Al-Ni shape memory alloys [J].
Al-Mahdi, Mohammed R. ;
Ahlatci, Hayrettin ;
Al-Humairi, Safaa N. Saud N. .
METALLURGICAL RESEARCH & TECHNOLOGY, 2023, 120 (03) :3794-3801
[37]   Effect of Y addition on the martensitic transformation and shape memory effect of Ti-Ta high-temperature shape memory alloy [J].
Zheng, X. H. ;
Sui, J. H. ;
Zhang, X. ;
Tian, X. H. ;
Cai, W. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 539 :144-147
[38]   Microstructure and shape memory effect of Ti-20Zr-10Nb alloy [J].
Cui, Yan ;
Li, Yan ;
Luo, Kun ;
Xu, Huibin .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (03) :652-656
[39]   The effect of Zr on the transformation behaviors, microstructure and the mechanical properties of Ti-Ni-Cu shape memory alloys [J].
Li, Jun ;
Yi, Xiaoyang ;
Sun, Kuishan ;
Sun, Bin ;
Gao, Weihong ;
Wang, Haizhen ;
Meng, Xianglong ;
Song, Wenlong .
JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 747 :348-353
[40]   Structure Features and Mechanical Properties of Metastable Cu-39.5 wt % Zn (α plus β) Alloy with Shape Memory Effect Subjected to Thermomechanical Treatment [J].
Svirid, A. E. ;
Pushin, V. G. ;
Kuranova, N. N. ;
Afanasyev, S. V. ;
Davydov, D. I. ;
Stashkova, L. A. .
PHYSICS OF METALS AND METALLOGRAPHY, 2024, 125 (08) :862-869
12345