Paper Title:
Study on Dynamic Mechanical Response of TC21 Alloy
  Abstract

Some results of an experimental study on high strain rate deformation of TC21 alloy are discussed in this paper. Cylindrical specimens of the TC21 alloys both in binary morphology and solution and aging morphology were subjected to high strain rate deformation by direct impact using a Split Hopkinson Pressure Bar. The deformation process is dominated by both thermal softening effect and strain hardening effect under high strain rate loading. Thus the flow stress doesn’t increase with strain rate at the strain hardening stage, while the increase is obvious under qusi-static compression. Under high strain rate, the dynamic flow stress is higher than that under quasi-static and dynamic flow stress increase with the increase of the strain rate, which indicates the strain rate hardening effect is great in TC21 alloy. The microstructure affects the dynamic mechanical properties of TC21 titanium alloy obviously. Under high strain rate, the solution and aging morphology has higher dynamic flow stress while the binary morphology has better plasticity and less prone to be instability under high strain rate condition. Shear bands were found both in the solution and aging morphology and the binary morphology.

  Info
Periodical
Chapter
Chapter 10: Vibration, Dynamics and Acoustic Control
Edited by
Xingui He, Ertian Hua, Yun Lin and Xiaozhu Liu
Pages
674-678
DOI
10.4028/www.scientific.net/AMM.88-89.674
Citation
S. Z. Zhao, X. W. Cheng, F. C. Wang, "Study on Dynamic Mechanical Response of TC21 Alloy", Applied Mechanics and Materials, Vols. 88-89, pp. 674-678, 2011
Online since
August 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chun Zheng Duan, Min Jie Wang, Tao Dou
Abstract:The microstructure observation and microhardness measurement were performed on the adiabatic shear bands in primary shear zone in the...
1887
Authors: Yi Xia Yan, Xi Cheng Huang, Wen Jun Hu
Abstract:In this work, LS-DYNA program was adopted to simulate the loading process of Vanadium Alloy specimen conducted on the Split Hopkinson...
1630
Authors: J.Q. Li, Tao Tao Dong, Min Jie Wang
Abstract:The adiabatic shear, which may produce serrated chip, usually occurs for a large number of materials in high speed machining. Adiabatic shear...
224
Authors: Li Ma, Jian Xin, Li Ke Wang, Ping Xu
Abstract:Adiabatic shearing is a typical response of materials under high strain rate loading. Based on the instability analysis for the...
135
Authors: Zhi Ping Xiong, Lei Gang Gu, Ye Ke Wang, Ji Cheng Zhao, Wei Ping Bao, Xue Ping Ren
Chapter 3: Metallurgical Technologies
Abstract:Influence of strain rate on mechanical properties of Fe-30Mn-3Si-4Al TWIP steel was studied by compression experiments, indicating that TWIP...
1018