Martensitic transformation and microstructure in Nb-Ru-Fe shape memory alloys

Xin Gao; Wei Cai; Y. F. Zheng; L. C. Zhao

doi:10.1016/j.msea.2006.02.079

Martensitic transformation and microstructure in Nb-Ru-Fe shape memory alloys

Xin Gao
, Wei Cai^*
, Y. F. Zheng
, L. C. Zhao

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The martensitic transformation behavior and microstructure in Nb-Ru-Fe alloys have been investigated by means of differential scanning calorimetry, X-ray diffraction, optical microscopy and transmission electron microscopy. It is shown that two-step phase transformation of β → β′ → β″ occurs during cooling from high temperature to room temperature. The monoclinic crystal structure remains unchanged with the addition of Fe, but all lattice parameters of the martensite unit cell decrease with increasing Fe content. The crystal symmetry of martensite is Cmmm. The β″ martensite variants exhibit self-accommodation morphology and the substructure is determined to be (1 0 1) type I twin.

Original language	English
Pages (from-to)	862-864
Number of pages	3
Journal	Materials Science and Engineering: A
Volume	438-440
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.msea.2006.02.079
State	Published - 25 Nov 2006
Externally published	Yes

Keywords

High-temperature shape memory alloy
Martensitic transformation
Microstructure
Nb-Ru-Fe alloy

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10.1016/j.msea.2006.02.079

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title = "Martensitic transformation and microstructure in Nb-Ru-Fe shape memory alloys",

abstract = "The martensitic transformation behavior and microstructure in Nb-Ru-Fe alloys have been investigated by means of differential scanning calorimetry, X-ray diffraction, optical microscopy and transmission electron microscopy. It is shown that two-step phase transformation of β → β′ → β″ occurs during cooling from high temperature to room temperature. The monoclinic crystal structure remains unchanged with the addition of Fe, but all lattice parameters of the martensite unit cell decrease with increasing Fe content. The crystal symmetry of martensite is Cmmm. The β″ martensite variants exhibit self-accommodation morphology and the substructure is determined to be (1 0 1) type I twin.",

keywords = "High-temperature shape memory alloy, Martensitic transformation, Microstructure, Nb-Ru-Fe alloy",

author = "Xin Gao and Wei Cai and Zheng, \{Y. F.\} and Zhao, \{L. C.\}",

year = "2006",

month = nov,

day = "25",

doi = "10.1016/j.msea.2006.02.079",

language = "英语",

volume = "438-440",

pages = "862--864",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

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TY - JOUR

T1 - Martensitic transformation and microstructure in Nb-Ru-Fe shape memory alloys

AU - Gao, Xin

AU - Cai, Wei

AU - Zheng, Y. F.

AU - Zhao, L. C.

PY - 2006/11/25

Y1 - 2006/11/25

N2 - The martensitic transformation behavior and microstructure in Nb-Ru-Fe alloys have been investigated by means of differential scanning calorimetry, X-ray diffraction, optical microscopy and transmission electron microscopy. It is shown that two-step phase transformation of β → β′ → β″ occurs during cooling from high temperature to room temperature. The monoclinic crystal structure remains unchanged with the addition of Fe, but all lattice parameters of the martensite unit cell decrease with increasing Fe content. The crystal symmetry of martensite is Cmmm. The β″ martensite variants exhibit self-accommodation morphology and the substructure is determined to be (1 0 1) type I twin.

AB - The martensitic transformation behavior and microstructure in Nb-Ru-Fe alloys have been investigated by means of differential scanning calorimetry, X-ray diffraction, optical microscopy and transmission electron microscopy. It is shown that two-step phase transformation of β → β′ → β″ occurs during cooling from high temperature to room temperature. The monoclinic crystal structure remains unchanged with the addition of Fe, but all lattice parameters of the martensite unit cell decrease with increasing Fe content. The crystal symmetry of martensite is Cmmm. The β″ martensite variants exhibit self-accommodation morphology and the substructure is determined to be (1 0 1) type I twin.

KW - High-temperature shape memory alloy

KW - Martensitic transformation

KW - Microstructure

KW - Nb-Ru-Fe alloy

UR - https://www.scopus.com/pages/publications/33750478689

U2 - 10.1016/j.msea.2006.02.079

DO - 10.1016/j.msea.2006.02.079

M3 - 文章

AN - SCOPUS:33750478689

SN - 0921-5093

VL - 438-440

SP - 862

EP - 864

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - SPEC. ISS.

ER -

Martensitic transformation and microstructure in Nb-Ru-Fe shape memory alloys

Abstract

Keywords

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