Effect of Sm on thermal and mechanical properties of Cu-Zr-Al bulk metallic glasses

被引：8

作者：

Sikan, F. ^{[1
]}

Atabay, S. E. ^{[1
]}

Motallebzadeh, A. ^{[2
]}

Ozerinc, S. ^{[3
]}

Kalay, I. ^{[4
]}

Kalay, Y. E. ^{[1
]}

机构：

[1] Middle East Tech Univ, Met & Mat Engn Dept, TR-06800 Ankara, Turkey

[2] Koc Univ, Surface Sci & Technol Ctr, TR-34450 Istanbul, Turkey

[3] Middle East Tech Univ, Mech Engn Dept, TR-06800 Ankara, Turkey

[4] Cankaya Univ, Dept Mat Sci & Engn, TR-06790 Ankara, Turkey

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 743卷

关键词：

Metallic glasses; Nanocrystallization; Micropillar compression test; RARE-EARTH-ELEMENTS; PHASE-SEPARATION; FORMING ABILITY; QUASI-CRYSTALS; COOLING RATE; BEHAVIOR; SIZE; FRACTURE; STRAIN; PLASTICITY;

D O I：

10.1016/j.msea.2018.11.068

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of rare-earth (Sm) microalloying on the thermal stability and phase selection along with the effect of nanocrystallization on the mechanical properties of amorphous melt-spun ribbons of Zr50Cu40Al10, Zr49Cu39.2Al9.8Sm2 and Zr48Cu38.4Al9.6Sm4 alloys were investigated using differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscopy (TEM), Vickers and nanoindentation hardness tests and micropillar compression analysis. XRD and TEM analyses showed that all samples were fully amorphous in as-spun state; however, crystallization sequences for the Sm-free and the Sm micro-alloyed samples were different during devitrification. Combined study of XRD, DSC and TEM on melt-spun ribbons show that Zr48Cu38.4Al9.6Sm4 have nanocrystallization of Cu2Sm phase with an average diameter of 10 nm, which was absent in Zr50Cu40Al10, prior to crystallization of Cu10Zr7 phase. The nanoindentation and micropillar compression tests revealed Cu2Sm nanocrystals embedded in Zr48Cu38.4Al9.6Sm4 alloy improves strength and hardness. On the other hand, presence of these nanocrystals deteriorate shear band stability and thus result in a catastrophic brittle fracture through a single shear band burst.

引用

页码：168 / 174

页数：7

共 58 条

[1] MECHANISM OF FRACTURE IN GLASSY MATERIALS CAPABLE OF SOME INELASTIC DEFORMATION [J].

ARGON, AS ;

SALAMA, M .

MATERIALS SCIENCE AND ENGINEERING, 1976, 23 (2-3) :219-230

[2] Thin film metallic glasses: Unique properties and potential applications [J].

Chu, Jinn P. ;

Jang, J. S. C. ;

Huang, J. C. ;

Chou, H. S. ;

Yang, Y. ;

Ye, J. C. ;

Wang, Y. C. ;

Lee, J. W. ;

Liu, F. X. ;

Liaw, P. K. ;

Chen, Y. C. ;

Lee, C. M. ;

Li, C. L. ;

Rullyani, Cut .

THIN SOLID FILMS, 2012, 520 (16) :5097-5122

[3] Work-hardenable ductile bulk metallic glass [J].

Das, J ;

Tang, MB ;

Kim, KB ;

Theissmann, R ;

Baier, F ;

Wang, WH ;

Eckert, J .

PHYSICAL REVIEW LETTERS, 2005, 94 (20)

[4] Roles of minor rare-earth elements addition in formation and properties of Cu-Zr-Al bulk metallic glasses [J].

Deng, Liang ;

Zhou, Bingwen ;

Yang, Hongshuo ;

Jiang, Xin ;

Jiang, Boyu ;

Zhang, Xingguo .

JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 632 :429-434

[5] A combinatorial thin film sputtering approach for synthesizing and characterizing ternary ZrCuAl metallic glasses [J].

Deng, Y. P. ;

Guan, Ye ;

Fowkes, J. D. ;

Wen, S. Q. ;

Liu, F. X. ;

Phaff, G. M. ;

Liaw, P. K. ;

Liu, C. T. ;

Rack, P. D. .

INTERMETALLICS, 2007, 15 (09) :1208-1216

[6] Mechanically alloyed Zr55Al10Cu30Ni5 metallic glass composites containing nanocrystalline W particles [J].

Eckert, J ;

Kübler, A ;

Schultz, L .

JOURNAL OF APPLIED PHYSICS, 1999, 85 (10) :7112-7119

[7] Nanocrystallization and fracture characteristics in Co-based ribbons [J].

Elbaile, L. ;

Riba, J. A. ;

Quintana, R. ;

Garcia, J. A. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2008, 354 (47-51) :5113-5116

[8] Ductility of bulk nanocrystalline composites and metallic glasses at room temperature [J].

Fan, C ;

Inoue, A .

APPLIED PHYSICS LETTERS, 2000, 77 (01) :46-48

[9] Phase formation and mechanical properties of Ti-Cu-Ni-Zr bulk metallic glass composites [J].

Gargarella, P. ;

Pauly, S. ;

Khoshkhoo, M. Samadi ;

Kuehn, U. ;

Eckert, J. .

ACTA MATERIALIA, 2014, 65 :259-269

[10] Bulk metallic glasses: At the cutting edge of metals research [J].

Greer, A. L. ;

Ma, E. .

MRS BULLETIN, 2007, 32 (08) :611-615

← 1 2 3 4 5 6 →