High temperature compression properties of near α type Ti-1100 alloy prepared by titanium hydride based powder metallurgy

Piao Rongxun; Zhu Wenjin; Lv Shunshun

doi:10.7513/j.issn.1004-7638.2021.06.009

Volume 42 Issue 6

Dec. 2021

Turn off MathJax

Article Contents

Article Navigation > IRON STEEL VANADIUM TITANIUM > 2021 > 42(6): 72-77

Piao Rongxun, Zhu Wenjin, Lv Shunshun. High temperature compression properties of near α type Ti-1100 alloy prepared by titanium hydride based powder metallurgy[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 72-77. doi: 10.7513/j.issn.1004-7638.2021.06.009

Citation:

Piao Rongxun, Zhu Wenjin, Lv Shunshun. High temperature compression properties of near α type Ti-1100 alloy prepared by titanium hydride based powder metallurgy[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 72-77. doi: 10.7513/j.issn.1004-7638.2021.06.009

Citation:

PDF( 1737 KB)

High temperature compression properties of near α type Ti-1100 alloy prepared by titanium hydride based powder metallurgy

doi: 10.7513/j.issn.1004-7638.2021.06.009

Anhui University of Science and Technology, Huainan 232001, Anhui, China

Received Date: 2021-11-21
Accepted Date: 2021-11-22
Publish Date: 2021-12-31

Abstract

Abstract

The isothermal compression experiments were carried out on high temperature titanium alloy Ti-1100 prepared by powder metallurgy using titanium hydride powder as raw material. The compression deformation behavior was analyzed through the obtained stress-strain curve of compressed samples, and then the thermal compression constitutive equation was established by using Arrhenius hyperbolic sinusoidal constitutive model. Through the analysis of the stress-strain curve, it is found out that when the strain rate is 0.01 s⁻¹, all samples show steady-state rheological behavior. When the strain rate is 1 s⁻¹ and the temperature is 900 ℃ or 1 000 ℃, the flow stress increases with deformation after steady-state rheological state. The activation energy of thermal compression deformation for strain rate at 0.01, 0.1 s⁻¹ and 1 s⁻¹ are 96, 165 kJ/mol and 232 kJ/mol, respectively. The hardness test results show that microhardness decreases slightly with increase of temperature and strain rate. When the temperature is 950 ℃ and the strain rate is 0.1 s⁻¹, the hardness of the alloy is generally small and the best hot workability can be achieved.
- high temperature titanium alloy,
- powder metallurgy,
- titanium hydride,
- isothermal compression,
- activation energy,
- hardness

FullText(HTML)

References(18)

References

[1]	Fu B G, Wang H W, Zou C M, et al. Microstructural characterization of in situ synthesized TiB in cast Ti-1100-0.10 B alloy[J]. Transactions of Nonferrous Metals Society of China, 2015,25:2206. doi: 10.1016/S1003-6326(15)63833-X
[2]	Cui W F, Zhou L, Luo G Z, et al. Effect of yttrium on mechanical properties, thermal stability and creep resistance of high temperature titanium alloy Ti-1100[J]. Journal of Rare Earths, 1999, 17(1): 38-41.
[3]	Shams SAA, Mirdamadi S, Abbasi S M, et al. Mechanism of martensitic to equiaxed microstructure evolution during hot deformation of a near-alpha Ti alloy[J]. Metallurgical and Materials Transactions A, 2017,48(6):2979−2992.
[4]	付彬国. 合金元素对铸造Ti-1100合金组织及性能影响[D]. 哈尔滨: 哈尔滨工业大学, 2015. Fu Binguo. Effects of alloying elements on microstructures and properties of CAST Ti-1100 alloys[D]. Harbin: Harbin Institute of Technology, 2015.
[5]	Fang Z Z, Paramore J D, Sun P, et al. Powder metallurgy of titanium - past, present, and future[J]. International Materials Reviews, 2017,63(7):1−53. doi: 10.1080/09506608.2017.1366003
[6]	Lütjering G, Williams J C. Titanium[M]. Springer Berlin Heidelberg, 2007.
[7]	Hagiwara M, Emura S. Property enhancement of orthorhombic Ti2AlNb-based intermetallic alloys[J]. Materials Science Forum, 2003,352(1):85.
[8]	Fang Z Z, Sun P, Wang H T. Hydrogen sintering of titanium to produce high density fine grain titanium alloys[J]. Advced Engineering Material, 2012,14:383−387.
[9]	Zhang H R, Niu H Z, Zang M, et al. Microstructures and mechanical behavior of a near α titanium alloy prepared by TiH₂-based powder metallurgy[J]. Materials Science & Engineering A, 2020,770:138570.
[10]	Azevedo C R F, Rodrigues D, Neto F B. Ti–Al–V powder metallurgy (PM) via the hydrogenation–dehydrogenation (HDH) process[J]. Journal of Alloys and Compounds, 2003,353(1-2):217-227. doi: 10.1016/S0925-8388(02)01297-5
[11]	Ivasishin O M, Eylon D, Bondarchuk V I, et al. Diffusion during powder metallurgy synthesis of titanium alloys[J]. Defect and DiffusionForum, 2008,277:177-185. doi: 10.4028/www.scientific.net/DDF.277.177
[12]	马兰, 杨绍利, 李俊翰, 等. 钒钛材料[M]. 北京: 冶金工业出版社, 2020. Ma Lan, Yang Shaoli, Li Junhan, et al. Vanadium titanium materials[M]. Beijing: Matellurgy Industry Press, 2020.
[13]	Zhu Yuling, Yang Shaoli, Ma Lan, et al. Effect of titanium hydride content on near-alpha multicomponent high temperature titanium alloy[J]. Iron Steel Vanadium Titanium, 2019,40(5):50−54. (朱钰玲, 杨绍利, 马兰, 等. 氢化钛含量对近α型多元高温钛合金的影响[J]. 钢铁钒钛, 2019,40(5):50−54.
[14]	Yang J, Wang G, Jiao X, et al. High-temperature deformation behavior of the extruded Ti-22Al-25Nb alloy fabricated by powder metallurgy[J]. Materials Characterization, 2018,137:170−179. doi: 10.1016/j.matchar.2018.01.019
[15]	Yang J, Wang G, Jiao X, et al. Hot deformation behavior and microstructural evolution of Ti-22Al-25Nb-1.0B alloy prepared by elemental powder metallurgy[J]. Journal of Alloys and Compounds, 2017,695:1038−1044. doi: 10.1016/j.jallcom.2016.10.228
[16]	Liang Houquan, Guo Hongzhen, Ning Yongquan, et al. Analysis on the constitutive relationship of TC18 titanium alloy based on the softening mechanism[J]. Acta Metallurgical Sinica, 2014,50(7):871-878. (梁后权, 郭鸿镇, 宁永权, 等. 基于软化机制的 TC18钛合金本构关系研究[J]. 金属学报, 2014,50(7):871-878.
[17]	Jia B H, Song W D, Tang H P, et al. Hot deformation behavior and constitutive model of TC18 titanium alloy during compression[J]. Rare Metals, 2014,33(4):383-389. doi: 10.1007/s12598-014-0328-x
[18]	Quan G Z, Wen H R, Jia P, et al. Construction of processing maps based on expanded data by BP-ANN and identification of optimal deforming parameters for Ti-6Al-4V alloy[J]. Int. J. Precis. Eng. Manuf., 2016,17(2):171−180. doi: 10.1007/s12541-016-0022-z