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Title: On the occurrence of dynamic strain aging in near-alpha alloy Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si

Abstract

Alloy Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si (IMI 834) is the most recently developed near-alpha type titanium alloy for high-temperature application up to 873 K, as discs and blades in the high pressure part of compressors, in advanced jet engines. It possesses a good combination of creep and fatigue resistance at elevated temperature, in properly heat-treated condition, and has a fine bimodal microstructure, consisting of a small volume fraction of equiaxed alpha in a fine-grained matrix of transformed beta. Some investigations have already been done on the tensile behavior of this alloy, in different heat-treated conditions, over a wide range of temperature from 293 to 923 K. However, no report has been made on the occurrence of dynamic strain aging (DSA) in this alloy. The purpose of this article is to present the observation on the occurrence of DSA in the titanium alloy IMI 834, in the as-received (hot-rolled and mill-annealed) condition, over the temperature range 623 to 823 K.

Authors:
; ;  [1]
  1. Banaras Hindu Univ., Varanasi (India)
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
684471
Resource Type:
Journal Article
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 30; Journal Issue: 9; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MICROSTRUCTURE; TENSILE PROPERTIES; STRAIN AGING; TITANIUM BASE ALLOYS; CHEMICAL COMPOSITION; TEMPERATURE RANGE 0400-1000 K; STRAIN RATE

Citation Formats

Singh, N., Prasad, N., and Singh, V. On the occurrence of dynamic strain aging in near-alpha alloy Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si. United States: N. p., 1999. Web. doi:10.1007/s11661-999-0263-x.
Singh, N., Prasad, N., & Singh, V. On the occurrence of dynamic strain aging in near-alpha alloy Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si. United States. doi:10.1007/s11661-999-0263-x.
Singh, N., Prasad, N., and Singh, V. Wed . "On the occurrence of dynamic strain aging in near-alpha alloy Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si". United States. doi:10.1007/s11661-999-0263-x.
@article{osti_684471,
title = {On the occurrence of dynamic strain aging in near-alpha alloy Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si},
author = {Singh, N. and Prasad, N. and Singh, V.},
abstractNote = {Alloy Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si (IMI 834) is the most recently developed near-alpha type titanium alloy for high-temperature application up to 873 K, as discs and blades in the high pressure part of compressors, in advanced jet engines. It possesses a good combination of creep and fatigue resistance at elevated temperature, in properly heat-treated condition, and has a fine bimodal microstructure, consisting of a small volume fraction of equiaxed alpha in a fine-grained matrix of transformed beta. Some investigations have already been done on the tensile behavior of this alloy, in different heat-treated conditions, over a wide range of temperature from 293 to 923 K. However, no report has been made on the occurrence of dynamic strain aging (DSA) in this alloy. The purpose of this article is to present the observation on the occurrence of DSA in the titanium alloy IMI 834, in the as-received (hot-rolled and mill-annealed) condition, over the temperature range 623 to 823 K.},
doi = {10.1007/s11661-999-0263-x},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 9,
volume = 30,
place = {United States},
year = {1999},
month = {9}
}