Morphological and crystallographic aspects of C11b-type precipitates nucleated in martensitic and parent phase matrices in Ti-rich Ti-Pd shape memory alloys

V. C. Solomon, Minoru Nishida

研究成果: ジャーナルへの寄稿Conference article

1 引用 (Scopus)

抄録

Ti2Pd phase with C11b-type structure which precipitates in Ti-rich Ti-Pd shape memory alloys may nucleate either in martensitic phase or parent phase depending upon thermal treatment conditions, since the transformation temperatures are around 800 K. In the alloy aged above Af, three C11b-type precipitate variants are always observed by TEM. The orientation relationship between those three variants and the B19 structure, which was transformed from B2 structure after the precipitation, is as follows: Variant I (001)Ti2Pd// (101̄)B19; Variant II (001)Ti2Pd// (101)B19; Variant III (001)Ti2Pd// (010)B19. The shape of the precipitates was deduced to be disk-like and/or elliptic. On the other hand, only the variants I and II are observed when the precipitates are nucleated in martensitic phase. Since the difference between the lattice spacing of (010)B19 and (001)/3Ti2Pd is about 20%, the formation of a third variant in the martensitic matrix is energetically unfavorable.

元の言語英語
ページ(範囲)1039-1042
ページ数4
ジャーナルJournal De Physique. IV : JP
112 II
出版物ステータス出版済み - 10 1 2003
イベントInternational Conference on Martensitic Transformations - Espoo, フィンランド
継続期間: 6 10 20026 14 2002

Fingerprint

shape memory alloys
precipitates
matrix
matrices
transmission electron microscopy
spacing
temperature
thermal treatment

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

@article{41225a6f41094961ad314f28cbaffc40,
title = "Morphological and crystallographic aspects of C11b-type precipitates nucleated in martensitic and parent phase matrices in Ti-rich Ti-Pd shape memory alloys",
abstract = "Ti2Pd phase with C11b-type structure which precipitates in Ti-rich Ti-Pd shape memory alloys may nucleate either in martensitic phase or parent phase depending upon thermal treatment conditions, since the transformation temperatures are around 800 K. In the alloy aged above Af, three C11b-type precipitate variants are always observed by TEM. The orientation relationship between those three variants and the B19 structure, which was transformed from B2 structure after the precipitation, is as follows: Variant I (001)Ti2Pd// (101̄)B19; Variant II (001)Ti2Pd// (101)B19; Variant III (001)Ti2Pd// (010)B19. The shape of the precipitates was deduced to be disk-like and/or elliptic. On the other hand, only the variants I and II are observed when the precipitates are nucleated in martensitic phase. Since the difference between the lattice spacing of (010)B19 and (001)/3Ti2Pd is about 20{\%}, the formation of a third variant in the martensitic matrix is energetically unfavorable.",
author = "Solomon, {V. C.} and Minoru Nishida",
year = "2003",
month = "10",
day = "1",
language = "English",
volume = "112 II",
pages = "1039--1042",
journal = "European Physical Journal: Special Topics",
issn = "1951-6355",
publisher = "Springer Verlag",

}

TY - JOUR

T1 - Morphological and crystallographic aspects of C11b-type precipitates nucleated in martensitic and parent phase matrices in Ti-rich Ti-Pd shape memory alloys

AU - Solomon, V. C.

AU - Nishida, Minoru

PY - 2003/10/1

Y1 - 2003/10/1

N2 - Ti2Pd phase with C11b-type structure which precipitates in Ti-rich Ti-Pd shape memory alloys may nucleate either in martensitic phase or parent phase depending upon thermal treatment conditions, since the transformation temperatures are around 800 K. In the alloy aged above Af, three C11b-type precipitate variants are always observed by TEM. The orientation relationship between those three variants and the B19 structure, which was transformed from B2 structure after the precipitation, is as follows: Variant I (001)Ti2Pd// (101̄)B19; Variant II (001)Ti2Pd// (101)B19; Variant III (001)Ti2Pd// (010)B19. The shape of the precipitates was deduced to be disk-like and/or elliptic. On the other hand, only the variants I and II are observed when the precipitates are nucleated in martensitic phase. Since the difference between the lattice spacing of (010)B19 and (001)/3Ti2Pd is about 20%, the formation of a third variant in the martensitic matrix is energetically unfavorable.

AB - Ti2Pd phase with C11b-type structure which precipitates in Ti-rich Ti-Pd shape memory alloys may nucleate either in martensitic phase or parent phase depending upon thermal treatment conditions, since the transformation temperatures are around 800 K. In the alloy aged above Af, three C11b-type precipitate variants are always observed by TEM. The orientation relationship between those three variants and the B19 structure, which was transformed from B2 structure after the precipitation, is as follows: Variant I (001)Ti2Pd// (101̄)B19; Variant II (001)Ti2Pd// (101)B19; Variant III (001)Ti2Pd// (010)B19. The shape of the precipitates was deduced to be disk-like and/or elliptic. On the other hand, only the variants I and II are observed when the precipitates are nucleated in martensitic phase. Since the difference between the lattice spacing of (010)B19 and (001)/3Ti2Pd is about 20%, the formation of a third variant in the martensitic matrix is energetically unfavorable.

UR - http://www.scopus.com/inward/record.url?scp=0242581405&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0242581405&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0242581405

VL - 112 II

SP - 1039

EP - 1042

JO - European Physical Journal: Special Topics

JF - European Physical Journal: Special Topics

SN - 1951-6355

ER -