Paper Title:
Effect of Initial Lamellar Structure on Globularization of Hot Multi-Forged ELI Grade Ti-6Al-4V Alloy
  Abstract

The effect of initial lamellar structure of β heat treated Ti-6Al-4V alloy on the globularization behavior during the multi-step forging was investigated. Specimens of different lamellar thicknesses were upsetted and stretched by side pressing repeatedly, i.e. multi-step forging, at the sub-transus temperature to break down the lamellar structure. The microstructural changes after multi-step forging were analyzed in the light of globularization behavior. The results showed that the thick lamellar structure was more difficult to be transformed to homogeneous equiaxed structure than thin lamellar structure.

  Info
Periodical
Materials Science Forum (Volumes 558-559)
Edited by
S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara
Pages
529-532
DOI
10.4028/www.scientific.net/MSF.558-559.529
Citation
J. Y. Kim, I. O. Shim, S. H. Hong, "Effect of Initial Lamellar Structure on Globularization of Hot Multi-Forged ELI Grade Ti-6Al-4V Alloy", Materials Science Forum, Vols. 558-559, pp. 529-532, 2007
Online since
October 2007
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: You Hwan Lee, T.J. Shin, Jong Taek Yeom, Nho Kwang Park, S.S. Hong, In Ok Shim, Sang Moo Hwang, Chong Soo Lee
Abstract:Prediction of final microstructures after high temperature forming of Ti-6Al-4V alloy was´attempted in this study. Using two typical...
189
Authors: He Ping Guo, Zhi Qiang Li
Abstract:Ti2AlNb orthorhombic alloys exhibit great potential as advanced aerospace and structural materials serviced at elevated temperature. In this...
453
Authors: Tao Wang, Hong Zhen Guo, Jian Hua Zhang, Ze Kun Yao
Abstract:The microstructures and room temperature and 600°C tensile properties of Ti-5.8Al-4.0Sn-4.0Zr-0.7Nb -0.4Si-1.5Ta alloy after isothermal...
153
Authors: Yan Zhao, Hong Zhen Guo, Zhi Feng Shi, Yong Qiang Zhang, Tao Wang, Ze Kun Yao, Rui Di Zhang
Abstract:A study was conducted by optical microscope (OM) and transmission electron microscope (TEM) on the microstructure evolution of TA15 alloy by...
332
Authors: Yutaka Matsuda, Goroh Itoh, Yoshinobu Motohashi
V. Processing
Abstract:Friction stir processing (FSP) causes fine-equiaxed microstructure[1]. In this study, microstructure and mechanical properties of a 7075...
316