Published January 25, 2008 | Version v1
Journal article Metadata-only

Microstructure evolution in adiabatic shear band in fine-grain-sized Ti-3Al-5Mo-4.5V alloy

Creators

  • 1. School of Materials Science and Engineering, Central South University, Changsha, 410083 Hunan (China)

Description

Dynamic testing of Ti-3Al-5Mo-4.5V (TC16) alloy was carried out in a hat-shaped specimen by a split Hopkinson pressure bar (SHPB) at ambient temperature. The microstructure and phase transformation in adiabatic shear band (ASB) produced in TC16 alloy were investigated by means of optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). ASB in TC16 alloy is a 'white' band of width about 13 μm. The elongated cell structures of width about 0.2-0.5 μm with thick dislocation exist in the boundary of the shear band. Results suggest that the fine equiaxed grains with α-phase and α''-phase coexist in the shear band. The 'white' band is a transformation band. Calculation indicates that the maximum temperature within ASB is about 1069 K. The phase transformation and the microstructure evolution within ASB in TC16 alloy are explained

Availability note (English)

Available from http://dx.doi.org/10.1016/j.msea.2007.03.073

Additional details

Identifiers

DOI
10.1016/j.msea.2007.03.073;
PII
S0921-5093(07)00566-7;

Publishing Information

Journal Title
Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
Journal Volume
473
Journal Issue
1-2
Journal Page Range
p. 306-311
ISSN
0921-5093
CODEN
MSAPE3

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39068743
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM ALLOYS; AMBIENT TEMPERATURE; DISLOCATIONS; MICROSTRUCTURE; MOLYBDENUM ALLOYS; OPTICAL MICROSCOPY; PHASE TRANSFORMATIONS; RECRYSTALLIZATION; SCANNING ELECTRON MICROSCOPY; SHEAR; TEMPERATURE RANGE 1000-4000 K; TITANIUM ALLOYS; TRANSMISSION ELECTRON MICROSCOPY; VANADIUM ALLOYS
Descriptors DEC
ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTRON MICROSCOPY; LINE DEFECTS; MICROSCOPY; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.