Ductility enhancement and superelasticity in Fe-Ni-Co-Al-Ti-B polycrystalline alloy

被引：62

作者：

Lee, Doyup ^{[1
]}

Omori, Toshihiro ^{[1
]}

Kainuma, Ryosuke ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 617卷

关键词：

Shape memory; Microstructure; Precipitation; Mechanical properties; MEMORY; TEXTURE;

D O I：

10.1016/j.jallcom.2014.07.136

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The microstructure, martensitic transformation and superelasticity were examined in Fe-30Ni-15Co-10Al-2.5Ti-0.05B polycrystalline alloy sheets. Thermoelastic transformation was obtained in an aged specimen at 550 degrees C with the gamma (FCC) + gamma' (L1(2)) structure. Moreover, it was found that a {012}< 100 > recrystallization texture was formed and that the high fraction of low energy boundaries was increased in a 98.5% cold-rolled specimen. Suppression of brittle precipitation during aging was directly observed at those boundaries, resulting in improvement of ductility, and superelastic strain of over 4% was obtained in the polycrystalline alloy in a tensile test at room temperature. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：120 / 123

页数：4

共 18 条

[1] The shape-memory effect and superelasticity in single-crystal ferromagnetic alloy FeNiCoAlTi [J].

Chumlyakov, Yu. I. ;

Kireeva, I. V. ;

Poklonov, V. V. ;

Pobedennaya, Z. V. ;

Karaman, I. .

TECHNICAL PHYSICS LETTERS, 2014, 40 (09) :747-750

[2] Effect of aging on the superelastic response of a single crystalline FeNiCoAlTa shape memory alloy [J].

Evirgen, A. ;

Ma, J. ;

Karaman, I. ;

Luo, Z. P. ;

Chumlyakov, Y. I. .

SCRIPTA MATERIALIA, 2012, 67 (05) :475-478

[3] PARTITION OF ALLOYING ELEMENTS BETWEEN GAMMA-(A1), GAMMA(')-(L12), AND BETA-(B2) PHASES IN NI-AL BASE SYSTEMS [J].

JIA, CC ;

ISHIDA, K ;

NISHIZAWA, T .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1994, 25 (03) :473-485

[4] NEARLY PERFECT SHAPE MEMORY EFFECT IN FE-NI-C ALLOYS [J].

KAJIWARA, S .

TRANSACTIONS OF THE JAPAN INSTITUTE OF METALS, 1985, 26 (08) :595-596

[5] Shape memory behavior and tension-compression asymmetry of a FeNiCoAlTa single-crystalline shape memory alloy [J].

Ma, J. ;

Kockar, B. ;

Evirgen, A. ;

Karaman, I. ;

Luo, Z. P. ;

Chumlyakov, Y. I. .

ACTA MATERIALIA, 2012, 60 (05) :2186-2195

[6] THERMOELASTIC MARTENSITE IN AN AUSAGED FE-NI-TI-CO ALLOY [J].

MAKI, T ;

KOBAYASHI, K ;

MINATO, M ;

TAMURA, I .

SCRIPTA METALLURGICA, 1984, 18 (10) :1105-1109

[7] Thermoelastic martensitic transformation and superelasticity in Fe-Ni-Co-Al-Nb-B polycrystalline alloy [J].

Omori, T. ;

Abe, S. ;

Tanaka, Y. ;

Lee, D. Y. ;

Ishida, K. ;

Kainuma, R. .

SCRIPTA MATERIALIA, 2013, 69 (11-12) :812-815

[8] Effect of grain size on superelasticity in Fe-Mn-Al-Ni shape memory alloy wire [J].

Omori, T. ;

Okano, M. ;

Kainuma, R. .

APL MATERIALS, 2013, 1 (03)

[9] Superelastic Effect in Polycrystalline Ferrous Alloys [J].

Omori, T. ;

Ando, K. ;

Okano, M. ;

Xu, X. ;

Tanaka, Y. ;

Ohnuma, I. ;

Kainuma, R. ;

Ishida, K. .

SCIENCE, 2011, 333 (6038) :68-71

[10]

Otsuka K., 1988, SHAPE MEMORY MAT

← 1 2 →