Paper Title:
Tensile Strength of Forged Ti-6Al-4V Welded Joints by Electronic Beam Welding
  Abstract

Forged Ti-6Al-4V welded structure by electronic beam welding (EBW) as integrally bladed disk (blisk) structure in advanced aero-engine has been widely applied. It is necessary to analyze microstructure and mechanical properties of Ti-6Al-4V welded joints by EBW for failure analysis and structure design of blisk. Firstly the microstructure and mechanical properties of forged Ti-6Al-4V welded joints was focused on. Grains in the weld zone become coarse and large gradient organization structure appears in the heat affected zone (HAZ), which presents significant local heterogeneity. Microhardness of the weld zone is about 20% higher than that of the base metal. The size of different region of the welded joints was estimated. Then static tensile test of three different specimens were carried on. Experiment results show that the tensile and yield strength of welded joints are not less than that of the base metal. Finally the empirical relationship between strength and hardness of Ti-6Al-4V alloy is established. Tensile strength of the weld zone and the base metal were estimated. Compared to experiment data, the deviation is 3.56%, 0.097% respectively.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
132-136
DOI
10.4028/www.scientific.net/AMR.255-260.132
Citation
H. Y. Qi, J. Xie, D. Pan, S. L. Li, X. G. Yang, "Tensile Strength of Forged Ti-6Al-4V Welded Joints by Electronic Beam Welding", Advanced Materials Research, Vols. 255-260, pp. 132-136, 2011
Online since
May 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: Jun Tao, Tian Cang Zhang, Peng Tao Liu, Jing Li, Yu Mang
Abstract:Linear friction welding (LFW) has become a key manufacture and repair technology in the aeronautical engine manufacturing, especially in the...
811
Authors: Phill Doorbar, Mark Dixon, Amit Chatterjee
Abstract:The aero-engine has provided the major drive for the development of new improved titanium alloys in recent years. This paper covers these...
127
Authors: Hong Yu Qi, Jian Xie, Shao Lin Li, Xiao Guang Yang
Chapter 1: Industrial Engineering and Material Science
Abstract:The blisk (bladed disk) is a new structural component of the modern aero-engine and plays an important role in improving its performance....
308
Authors: Yan Hui Yang, Dong Liu, Guo Jie Gao, Jian Guo Wang
Chapter 2: Bio and Sustainable Manufacturing Technologies
Abstract:Isothermal compression tests were conducted at various temperature and strain rate combinations over the hot working range (880 to 1040°C and...
262