High Pressure Phase-Transformation Induced Texture Evolution and Strengthening in Zirconium Metal: Experiment and Modeling

被引：21

作者：

Yu, Xiaohui ^{[1
,2
,3
]}

Zhang, Ruifeng ^{[4
]}

Weldon, David ^{[3
]}

Vogel, Sven C. ^{[3
]}

Zhang, Jianzhong ^{[3
]}

Brown, Donald W. ^{[3
]}

Wang, Yanbin ^{[5
]}

Reiche, Helmut M. ^{[3
]}

Wang, Shanmin ^{[6
,7
]}

Du, Shiyu ^{[8
]}

Jin, Changqing ^{[1
,2
,9
]}

Zhao, Yusheng ^{[1
,2
,6
,7
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

[3] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA

[4] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

[5] Univ Chicago, Ctr Adv Radiat Sources, Chicago, IL 60469 USA

[6] Univ Nevada, HiPSEC, Las Vegas, NV 89154 USA

[7] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

[8] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Div Funct Mat & Nanodevices, Ningbo 315201, Zhejiang, Peoples R China

[9] Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China

来源：

SCIENTIFIC REPORTS | 2015年 / 5卷

基金：

美国国家科学基金会;

关键词：

INITIO MOLECULAR-DYNAMICS; DEFORMATION-DIA; OMEGA-PHASE; TITANIUM; TRANSITION; ZR;

D O I：

10.1038/srep12552

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We studied the phase-transition induced texture changes and strengthening mechanism for zirconium metal under quasi-hydrostatic compression and uni-axial deformation under confined high pressure using the deformation-DIA (D-DIA) apparatus. It is shown that the experimentally obtained texture for omega-phase Zr can be qualitatively described by combining a subset of orientation variants previously proposed in two different models. The determined flow stress for the high-pressure alpha-phase is 0.5-1.2 GPa, more than three times higher than that of the a-phase. Using first-principles calculations, we investigated the mechanical and electronic properties of the two Zr polymorphs. We find that the observed strengthening can be attributed to the relatively strong directional bonding in the omega phase, which significantly increases its shear plastic resistance over the alpha-phase Zr. The present findings provide an alternate route for Zr metal strengthening by high-pressure phase transformation.

引用

页数：9

共 31 条

[1] Stability of the two-phase (α/ω) microstructure of shocked zirconium [J].

Brown, D. W. ;

Almer, J. D. ;

Balogh, L. ;

Cerreta, E. K. ;

Clausen, B. ;

Escobedo-Diaz, J. P. ;

Sisneros, T. A. ;

Mosbrucker, P. L. ;

Tulk, E. F. ;

Vogel, S. C. .

ACTA MATERIALIA, 2014, 67 :383-394

[2] Nanoindentation hardness and atomic force microscope imaging studies of pressure-quenched zirconium metal [J].

Catledge, SA ;

Spencer, PT ;

Vohra, YK .

APPLIED PHYSICS LETTERS, 2000, 77 (22) :3568-3570

[3] Formation of metastable omega-phase in Zr-Fe, Zr-Co, Zr-Ni, and Zr-Cu alloys [J].

Dobromyslov, AV ;

Kazantseva, NV .

SCRIPTA MATERIALIA, 1997, 37 (05) :615-620

[4] Peierls barriers and stresses for edge dislocations in Pd and Al calculated from first principles [J].

Hartford, J ;

von Sydow, B ;

Wahnstrom, G ;

Lundqvist, BI .

PHYSICAL REVIEW B, 1998, 58 (05) :2487-2496

[5] CRYSTAL STRUCTURES OF TITANIUM, ZIRCONIUM, AND HAFNIUM AT HIGH PRESSURES [J].

JAMIESON, JC .

SCIENCE, 1963, 140 (356) :72-&

[6] SOLID-SOLID TRANSITIONS IN TITANIUM AND ZIRCONIUM AT HIGH PRESSURES [J].

JAYARAMAN, A ;

KLEMENT, W ;

KENNEDY, GC .

PHYSICAL REVIEW, 1963, 131 (02) :644-&

[7] The Peierls stress of dislocations: An analytic formula [J].

Joos, B ;

Duesbery, MS .

PHYSICAL REVIEW LETTERS, 1997, 78 (02) :266-269

[8] DUCTILE AND BRITTLE CRYSTALS [J].

KELLY, A ;

TYSON, WR ;

COTTRELL, AH .

PHILOSOPHICAL MAGAZINE, 1967, 15 (135) :567-&

[9] ABINITIO MOLECULAR-DYNAMICS FOR LIQUID-METALS [J].

KRESSE, G ;

HAFNER, J .

PHYSICAL REVIEW B, 1993, 47 (01) :558-561

[10] Atomistic mechanisms governing elastic limit and incipient plasticity in crystals [J].

Li, J ;

Van Vliet, KJ ;

Zhu, T ;

Yip, S ;

Suresh, S .

NATURE, 2002, 418 (6895) :307-310

← 1 2 3 4 →