Paper Title:
Mechanical Behavior of As-Cast and High Temperature Exposed Ni-Base Superalloy B1900
  Abstract

Microstructural evolution during high temperature exposure and its effects on tensile and stress rupture properties of the Ni-base superalloy B1900 have been studied. Tensile deformation of the as-cast specimen was concentrated in the localized slip bands in general. Stacking faults and deformation twins were observed in the as-cast tensile specimen tested at 871°C where the alloy exhibited the lowest ductility. Dense dislocation network formed at γ/γ´ interface during thermal exposure caused homogenous deformation in the thermally exposed tensile specimen. Thermal exposure did not have significant effect on the stress rupture lives of the alloy at 760°C and at and above 871°C but it reduced stress rupture life of the alloy at 816°C γ´ coarsening and coherency loss at the γ/γ´ interface during thermal exposure were primarily responsible for the deterioration of mechanical properties and characteristic deformation behavior of the alloy.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
541-544
DOI
10.4028/www.scientific.net/MSF.449-452.541
Citation
I.S. Kim, B. G. Choi, S. M. Seo, C. Y. Jo, "Mechanical Behavior of As-Cast and High Temperature Exposed Ni-Base Superalloy B1900", Materials Science Forum, Vols. 449-452, pp. 541-544, 2004
Online since
March 2004
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: A. Bahrami, A. Razaghian, M. Emamy, H.R. Jafari Nodooshan, G.S. Mousavi
Abstract:In this study, the relationship between microstructures and mechanical properties of the extrusion processed Al-15wt.%Mg2Si composite was...
1171
Authors: Xin Zhao, Xiao Ling Yang
Abstract:Gray iron was hot-compressed on a Gleeble 3500 machine. The effect of hot compression on mechanical properties of gray iron was studied. The...
1080
Authors: Xiu Li Hou, Zhan Yi Cao, Li Dong Wang, Li Min Wang
Metal alloy Materials
Abstract:The influences of hot forging and ageing treatment on the microstructure and mechanical properties of Mg−8Gd−2Y−1Nd−0.3Zn−0.6Zr (wt.%) alloy...
1598
Authors: Ping Wang, Fu Yin Han, Yong Sheng Wang, Lu Geng, Shao Feng Meng, Wei Liang
Chapter 5: Metal Alloy Materials
Abstract:The microstructure and mechanical properties of AZ61-4Si magnesium alloy before and after equal channel angular processing (ECAP) were...
602
Authors: Dong Qing Zhao, Xu Guang Dong, Xin En Zhang, An Jiang Gao, Ji Xue Zhou, Yuan Sheng Yang
Abstract:The microstructures and tensile properties of as-cast, solution-treated and aged Mg-4Zn-2Sn-2Al (wt.%) alloy have been investigated. The...
398