Published March 2009 | Version v1
Journal article Metadata-only

Transmission electron microscopy investigation of microstructures in low-hysteresis alloys with special lattice parameters

Creators

  • 1. Electron Microscopy for Materials Science (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp (Belgium)
  • 2. Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, MN 55455 (United States)

Description

A sharp drop in hysteresis is observed for shape memory alloys satisfying the compatibility condition between austenite and martensite, i.e. λ2 = 1, where λ2 is the middle eigenvalue of the transformation strain matrix. The present work investigates the evolution of microstructure by transmission electron microscopy as the composition of the Ti50Ni50-xPdx system is systemically tuned to achieve the condition λ2 = 1. Changes in morphology, twinning density and twinning modes are reported along with twinless martensite and exact austenite-martensite interfaces

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2008.10.025

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2008.10.025;
PII
S1359-6462(08)00755-0;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
60
Journal Issue
5
Journal Page Range
p. 293-296
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40077595
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AUSTENITE; COMPATIBILITY; EIGENVALUES; HYSTERESIS; LATTICE PARAMETERS; MARTENSITE; MICROSTRUCTURE; MORPHOLOGY; PHASE TRANSFORMATIONS; SHAPE MEMORY EFFECT; STRAINS; TRANSMISSION ELECTRON MICROSCOPY; TWINNING
Descriptors DEC
ALLOYS; CARBON ADDITIONS; ELECTRON MICROSCOPY; IRON ALLOYS; MICROSCOPY; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.