Published April 2005 | Version v1
Journal article Metadata-only

Irradiation-induced changes of martensitic transformation temperatures in a TiNiNb shape memory alloy

Creators

  • 1. Department of Material Forming and Controlling Engineering, Sichuan University, Chengdu 610065 (China)
  • 2. Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054 (China)
  • 3. Department of Mechanics, Fudan University, Shanghai 200433 (China)

Description

Effects of electron irradiations on the transition behavior of 1123 K annealed Ti44Ni47Nb9 shape memory alloy specimens were studied. The transformation temperatures and the latent heat of phase transformation were measured by differential scanning calorimeter (DSC). The microstructure changes were determined by XRD and TEM. The 1.7 MeV electron irradiation increases the martensitic transformation start temperature, finish temperature, austenite transformation start, finish temperature by ∼20 K. The XRD and TEM observation showed that the volume fraction of β-Nb precipitate increased after electron irradiation, which contributed to the observed changes of the transformation temperatures

Additional details

Identifiers

DOI
10.1016/j.tca.2004.09.022;
PII
S0040-6031(04)00468-X;

Publishing Information

Journal Title
Thermochimica Acta
Journal Volume
428
Journal Issue
1-2
Journal Page Range
p. 41-45
ISSN
0040-6031
CODEN
THACAS

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38082135
Subject category
S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ANNEALING; AUSTENITE; CALORIMETERS; CALORIMETRY; ELECTRON BEAMS; ELECTRONS; HEAT; IRRADIATION; METALLURGICAL EFFECTS; MEV RANGE 01-10; MICROSTRUCTURE; NICKEL ALLOYS; NIOBIUM ALLOYS; PHASE TRANSFORMATIONS; PRECIPITATION; SHAPE MEMORY EFFECT; TEMPERATURE RANGE 1000-4000 K; TITANIUM ALLOYS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
Descriptors DEC
ALLOYS; BEAMS; CARBON ADDITIONS; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; FERMIONS; HEAT TREATMENTS; IRON ALLOYS; LEPTON BEAMS; LEPTONS; MEASURING INSTRUMENTS; MEV RANGE; MICROSCOPY; PARTICLE BEAMS; SCATTERING; SEPARATION PROCESSES; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.