Electron microscopy studies of twin morphologies in B19′ martensite in the Ti-Ni shape memory alloy

Minoru Nishida, H. Ohgi, I. Itai, A. Chiba, K. Yamauchi

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

Twins in the B19′ martensite in the Ti-Ni shape memory alloy have been investigated by conventional transmission electron microscopy (CTEM) and electron diffraction. The following five twinning modes were observed. The 〈011〉 Type II twin was dominantly observed among those and confirmed to be a lattice invariant shear since most martensite variants consisted of the 〈011〉 Type II twinning. The {111-} Type I twinning was morphologically and characteristically divided into three types, i.e. a deformation twin, a variant accommodation twin and a lattice invariant shear. (100) and (001) compound twinnings were considered to be a deformation twin. The 011 Type I twinning was inevitably reconfirmed and considered to be a lattice invariant shear rather than a deformation twin since it extended over the whole martensite plate. The formation order and mechanism of each twinning mode were qualitatively discussed in view of the elastic interaction accumulated during the martensitic transformation.

Original languageEnglish
Pages (from-to)1219-1227
Number of pages9
JournalActa Metallurgica Et Materialia
Volume43
Issue number3
DOIs
Publication statusPublished - Jan 1 1995
Externally publishedYes

Fingerprint

Twinning
Shape memory effect
Martensite
Electron microscopy
Martensitic transformations
Electron diffraction
titanium nickelide
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Electron microscopy studies of twin morphologies in B19′ martensite in the Ti-Ni shape memory alloy. / Nishida, Minoru; Ohgi, H.; Itai, I.; Chiba, A.; Yamauchi, K.

In: Acta Metallurgica Et Materialia, Vol. 43, No. 3, 01.01.1995, p. 1219-1227.

Research output: Contribution to journalArticle

@article{b34db21cb3494db5bb91f127d5c2ba76,
title = "Electron microscopy studies of twin morphologies in B19′ martensite in the Ti-Ni shape memory alloy",
abstract = "Twins in the B19′ martensite in the Ti-Ni shape memory alloy have been investigated by conventional transmission electron microscopy (CTEM) and electron diffraction. The following five twinning modes were observed. The 〈011〉 Type II twin was dominantly observed among those and confirmed to be a lattice invariant shear since most martensite variants consisted of the 〈011〉 Type II twinning. The {111-} Type I twinning was morphologically and characteristically divided into three types, i.e. a deformation twin, a variant accommodation twin and a lattice invariant shear. (100) and (001) compound twinnings were considered to be a deformation twin. The 011 Type I twinning was inevitably reconfirmed and considered to be a lattice invariant shear rather than a deformation twin since it extended over the whole martensite plate. The formation order and mechanism of each twinning mode were qualitatively discussed in view of the elastic interaction accumulated during the martensitic transformation.",
author = "Minoru Nishida and H. Ohgi and I. Itai and A. Chiba and K. Yamauchi",
year = "1995",
month = "1",
day = "1",
doi = "10.1016/0956-7151(94)00332-C",
language = "English",
volume = "43",
pages = "1219--1227",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Elsevier Limited",
number = "3",

}

TY - JOUR

T1 - Electron microscopy studies of twin morphologies in B19′ martensite in the Ti-Ni shape memory alloy

AU - Nishida, Minoru

AU - Ohgi, H.

AU - Itai, I.

AU - Chiba, A.

AU - Yamauchi, K.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - Twins in the B19′ martensite in the Ti-Ni shape memory alloy have been investigated by conventional transmission electron microscopy (CTEM) and electron diffraction. The following five twinning modes were observed. The 〈011〉 Type II twin was dominantly observed among those and confirmed to be a lattice invariant shear since most martensite variants consisted of the 〈011〉 Type II twinning. The {111-} Type I twinning was morphologically and characteristically divided into three types, i.e. a deformation twin, a variant accommodation twin and a lattice invariant shear. (100) and (001) compound twinnings were considered to be a deformation twin. The 011 Type I twinning was inevitably reconfirmed and considered to be a lattice invariant shear rather than a deformation twin since it extended over the whole martensite plate. The formation order and mechanism of each twinning mode were qualitatively discussed in view of the elastic interaction accumulated during the martensitic transformation.

AB - Twins in the B19′ martensite in the Ti-Ni shape memory alloy have been investigated by conventional transmission electron microscopy (CTEM) and electron diffraction. The following five twinning modes were observed. The 〈011〉 Type II twin was dominantly observed among those and confirmed to be a lattice invariant shear since most martensite variants consisted of the 〈011〉 Type II twinning. The {111-} Type I twinning was morphologically and characteristically divided into three types, i.e. a deformation twin, a variant accommodation twin and a lattice invariant shear. (100) and (001) compound twinnings were considered to be a deformation twin. The 011 Type I twinning was inevitably reconfirmed and considered to be a lattice invariant shear rather than a deformation twin since it extended over the whole martensite plate. The formation order and mechanism of each twinning mode were qualitatively discussed in view of the elastic interaction accumulated during the martensitic transformation.

UR - http://www.scopus.com/inward/record.url?scp=0029273487&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029273487&partnerID=8YFLogxK

U2 - 10.1016/0956-7151(94)00332-C

DO - 10.1016/0956-7151(94)00332-C

M3 - Article

VL - 43

SP - 1219

EP - 1227

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 3

ER -