Ductile ultrafine-grained Ti-based alloys with high yield strength

被引：90
作者：
Zhang, Lai-Chang
Lu, Hai-Bo
Mickel, Christine
Eckert, Jurgen
机构：
[1] IFW Dresden, Inst Komplexe Mat, D-01171 Dresden, Germany
[2] Inst Met Werkstoffe, D-01171 Dresden, Germany
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 05期
关键词：
D O I：
10.1063/1.2766861
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The authors report on ductile ultrafine-grained (Ti0.72Fe0.28)(100-x)Ta-x (0 <= x <= 4) alloys with not only high fracture strength but simultaneously high yield strength exceeding 2000 MPa along with distinct plasticity, which are superior to high-strength Ti-based bulk metallic glasses and bimodal composites. All alloys mainly consist of beta-Ti and FeTi solid solutions but display different microstructures. The alloys exhibit a high fracture strength > 2500 MPa and a high yield strength > 2000 MPa as well as large plasticity of similar to 5%-7.5%. The microstructure-property correlation of these ultrafine-grained alloys is discussed. (c) 2007 American Institute of Physics.
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相关论文
共 24 条
[1]  
[Anonymous], 2003, TITANIUM TITANIUM AL, DOI DOI 10.1002/3527602119
[2]   Structural short-range order of the β-Ti phase in bulk Ti-Fe-(Sn) nanoeutectic composites [J].
Das, J. ;
Eckert, J. ;
Theissmann, R. .
APPLIED PHYSICS LETTERS, 2006, 89 (26)
[3]   High-strength Ti-base ultrafine eutectic with enhanced ductility -: art. no. 161907 [J].
Das, J ;
Kim, KB ;
Baier, F ;
Löser, W ;
Eckert, J .
APPLIED PHYSICS LETTERS, 2005, 87 (16) :1-3
[4]   White organic light-emitting diodes based on tandem structures [J].
Guo, FW ;
Ma, DG .
APPLIED PHYSICS LETTERS, 2005, 87 (17) :1-3
[5]   Novel Ti-base nanostructure-dendrite composite with enhanced plasticity [J].
He, G ;
Eckert, J ;
Löser, W ;
Schultz, L .
NATURE MATERIALS, 2003, 2 (01) :33-37
[6]   A new Ti-Zr-Hf-Cu-Ni-Si-Sn bulk amorphous alloy with high glass-forming ability [J].
Huang, Y. J. ;
Shen, J. ;
Sun, J. F. ;
Yu, X. B. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 427 (1-2) :171-175
[7]   Deformation behavior and plastic instabilities of ultrafine-grained titanium [J].
Jia, D ;
Wang, YM ;
Ramesh, KT ;
Ma, E ;
Zhu, YT ;
Valiev, RZ .
APPLIED PHYSICS LETTERS, 2001, 79 (05) :611-613
[8]  
Koch C.C., 2003, JMNM, V18, P9, DOI [10.4028/www.scientific.net/jmnm.18.9, DOI 10.4028/WWW.SCIENTIFIC.NET/JMNM.18.9]
[9]   Correlating elasticity and cleavage [J].
Lazar, P ;
Podloucky, R ;
Wolf, W .
APPLIED PHYSICS LETTERS, 2005, 87 (26) :1-3
[10]   High-strength binary Ti-Fe bulk alloys with enhanced ductility [J].
Louzguine, DV ;
Kato, H ;
Louzguina, LV ;
Inoue, A .
JOURNAL OF MATERIALS RESEARCH, 2004, 19 (12) :3600-3606
123