Published June 28, 2007 | Version v1
Journal article Metadata-only

Effect of Dy addition on the microstructure and martensitic transformation of a Ni-rich TiNi shape memory alloy

Creators

  • 1. School of Materials Science and Engineering, P.O. Box 405, Harbin Institute of Technology, Harbin 150001 (China)

Description

The effect of rare earth element Dy addition on the microstructure and martensitic transformation behavior of Ti49.3Ni50.7 shape memory alloy was investigated by optical microscope (OM), scanning electronic microscope (SEM), X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The results show that the microstructure of TiNiDy ternary alloy consists of Ti2Ni phase, DyNi phase and the matrix. One-step martensitic transformation is observed in quenched TiNiDy ternary alloys, which is the same as that in quenched TiNi binary alloys. The martensitic transformation temperatures increase evidently with Dy addition, and the maximum increase of M s is about 110 oC

Additional details

Identifiers

DOI
10.1016/j.jallcom.2006.08.006;
PII
S0925-8388(06)01001-2;

Publishing Information

Journal Title
Journal of Alloys and Compounds
Journal Volume
437
Journal Issue
1-2
Journal Page Range
p. 339-343
ISSN
0925-8388
CODEN
JALCEU

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39013614
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BINARY ALLOY SYSTEMS; CALORIMETRY; DYSPROSIUM ALLOYS; MICROSTRUCTURE; NICKEL ALLOYS; OPTICAL MICROSCOPES; PHASE TRANSFORMATIONS; SCANNING ELECTRON MICROSCOPY; TEMPERATURE RANGE 0273-0400 K; TERNARY ALLOY SYSTEMS; TITANIUM ALLOYS; X-RAY DIFFRACTION
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; MICROSCOPES; MICROSCOPY; RARE EARTH ALLOYS; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.