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Deformation mechanisms of a ZrTiAlV alloy with two ductile phases

Published online by Cambridge University Press:  18 September 2013

Shunxing Liang ,
Lixia Yin ,
Ran Jing ,
Xinyu Zhang ,
Mingzhen Ma  and
Riping Liu
Shunxing Liang*
Affiliation:
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China; and College of Equipment Manufacture, Hebei University of Engineering, Handan 056038, Hebei, China
Lixia Yin
Affiliation:
College of Equipment Manufacture, Hebei University of Engineering, Handan 056038, Hebei, China
Ran Jing
Affiliation:
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
Xinyu Zhang
Affiliation:
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
Mingzhen Ma*
Affiliation:
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
Riping Liu*
Affiliation:
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
*
b)e-mail: [email protected]
a)Address all correspondence to these authors. e-mail: [email protected]
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Abstract

Deformation mechanisms of a ZrTiAlV alloy with two ductile phases including a hexagonal close-packed (hcp) structure phase were investigated. A ZrTiAlV alloy was prepared via smelting, breakdown, forging, and suitable heat treatments. X-ray diffraction results show that the proposed ZrTiAlV alloy has two ductile phase structures, namely, hcp structure α-phase and bcc (body-centered cubic) structure β-phase. Scanning electron microscopy (SEM) results show that the plastic deformation of the examined ZrTiAlV alloy starts from the α-phase. Transmission electron microscopy (TEM) analysis shows that only dislocation slips can be found near fractured areas, and the main slip plane in the α-phase is the (0001) lattice plane. Both of the SEM and TEM results show the inexistence of deformation twin in the examined ZrTiAlV alloy including a hcp structure α-phase. Reasons for the abnormal deformation behavior of the hcp structure α-phase are also discussed.

Keywords

deformation mechanismsecond phaseZr alloymicrostructure
Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 19 , 14 October 2013 , pp. 2715 - 2719
Copyright
Copyright © Materials Research Society 2013 

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