Effect of phase transformations on the mechanical properties of a multiphase alloy based on NiAl+Fe

J. A. Horton; C. T. Liu; I. Vergara; E. P. George

Effect of phase transformations on the mechanical properties of a multiphase alloy based on NiAl+Fe

J. A. Horton
, C. T. Liu
, I. Vergara
, E. P. George

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

Shape memory alloys based on NiAl+Fe have the potential as actuators in under-the-hood automotive applications requiring alloys with transition temperatures above 100 °C. Alloying with iron and boron results in two-phase alloys with L1₂ and B2 phases and with about 7% room temperature tensile ductility. These alloys show a two-way shape memory effect over a range of transition temperatures with austenite peak temperature between 100 to 200 °C based on composition. Unfortunately, the B2 phase and its low temperature body centered tetragonal martensitic form are not stable and both can transform to Ni₅Al₃ with a loss in ductility. The shape memory properties of one such alloy as a function of prior cold work and tensile loading are presented.

Original language	English
Title of host publication	Proceedings of the TMS Fall Meeting
Publisher	Minerals, Metals & Materials Soc (TMS)
Pages	91-98
Publication status	Published - 1994
Externally published	Yes
Event	Proceedings of the 1994 TMS Fall Symposium - Rosemont, IL, USA Duration: 2 Oct 1994 → 6 Oct 1994

Conference

Conference	Proceedings of the 1994 TMS Fall Symposium
City	Rosemont, IL, USA
Period	2/10/94 → 6/10/94

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@inproceedings{3786123970f14b84aa174e9555835532,

title = "Effect of phase transformations on the mechanical properties of a multiphase alloy based on NiAl+Fe",

abstract = "Shape memory alloys based on NiAl+Fe have the potential as actuators in under-the-hood automotive applications requiring alloys with transition temperatures above 100 °C. Alloying with iron and boron results in two-phase alloys with L12 and B2 phases and with about 7\% room temperature tensile ductility. These alloys show a two-way shape memory effect over a range of transition temperatures with austenite peak temperature between 100 to 200 °C based on composition. Unfortunately, the B2 phase and its low temperature body centered tetragonal martensitic form are not stable and both can transform to Ni5Al3 with a loss in ductility. The shape memory properties of one such alloy as a function of prior cold work and tensile loading are presented.",

author = "Horton, \{J. A.\} and Liu, \{C. T.\} and I. Vergara and George, \{E. P.\}",

year = "1994",

language = "English",

pages = "91--98",

booktitle = "Proceedings of the TMS Fall Meeting",

publisher = "Minerals, Metals \& Materials Soc (TMS)",

note = "Proceedings of the 1994 TMS Fall Symposium ; Conference date: 02-10-1994 Through 06-10-1994",

}

Effect of phase transformations on the mechanical properties of a multiphase alloy based on NiAl+Fe. / Horton, J. A.; Liu, C. T.; Vergara, I. et al.
Proceedings of the TMS Fall Meeting. Minerals, Metals & Materials Soc (TMS), 1994. p. 91-98.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Effect of phase transformations on the mechanical properties of a multiphase alloy based on NiAl+Fe

AU - Horton, J. A.

AU - Liu, C. T.

AU - Vergara, I.

AU - George, E. P.

PY - 1994

Y1 - 1994

N2 - Shape memory alloys based on NiAl+Fe have the potential as actuators in under-the-hood automotive applications requiring alloys with transition temperatures above 100 °C. Alloying with iron and boron results in two-phase alloys with L12 and B2 phases and with about 7% room temperature tensile ductility. These alloys show a two-way shape memory effect over a range of transition temperatures with austenite peak temperature between 100 to 200 °C based on composition. Unfortunately, the B2 phase and its low temperature body centered tetragonal martensitic form are not stable and both can transform to Ni5Al3 with a loss in ductility. The shape memory properties of one such alloy as a function of prior cold work and tensile loading are presented.

AB - Shape memory alloys based on NiAl+Fe have the potential as actuators in under-the-hood automotive applications requiring alloys with transition temperatures above 100 °C. Alloying with iron and boron results in two-phase alloys with L12 and B2 phases and with about 7% room temperature tensile ductility. These alloys show a two-way shape memory effect over a range of transition temperatures with austenite peak temperature between 100 to 200 °C based on composition. Unfortunately, the B2 phase and its low temperature body centered tetragonal martensitic form are not stable and both can transform to Ni5Al3 with a loss in ductility. The shape memory properties of one such alloy as a function of prior cold work and tensile loading are presented.

UR - https://www.scopus.com/pages/publications/0028680268

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0028680268&origin=recordpage

M3 - RGC 32 - Refereed conference paper (with host publication)

SP - 91

EP - 98

BT - Proceedings of the TMS Fall Meeting

PB - Minerals, Metals & Materials Soc (TMS)

T2 - Proceedings of the 1994 TMS Fall Symposium

Y2 - 2 October 1994 through 6 October 1994

ER -

Effect of phase transformations on the mechanical properties of a multiphase alloy based on NiAl+Fe

Abstract

Conference

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this