Resolving ensembled microstructural information of bulk-metallic-glass-matrix composites using synchrotron x-ray diffraction

2010 ◽  
Vol 97 (17) ◽  
pp. 171910 ◽  
Author(s):  
J. W. Qiao ◽  
E. W. Huang ◽  
F. Jiang ◽  
T. Ungár ◽  
G. Csiszár ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Matrix ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
X Ray ◽  
Glass Matrix Composites

Synthesis and Properties of Bulk Metallic Glass Matrix Composites

1998 ◽  
Vol 554 ◽  
Author(s):  
Haein Choi-Yim ◽  
Ralf Busch ◽  
William L. Johnson
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Matrix ◽  
Compressive Strain ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
Glass Forming ◽  
The Matrix ◽  
Glass Matrix Composites ◽  
Thermal Stability Of

AbstractBulk metallic glass matrix composites are processed and investigated by X-ray diffraction, DSC, optical microscopy, SEM, microprobe, TEM, and mechanical testing. Ceramics such as SiC, WC, or TiC, and the metals W or Ta are introduced as reinforcements into the metallic melt. The metallic glass matrix remains amorphous after adding up to 30 vol% of particles. The thermal stability of the matrix does not deteriorate after adding the particles. ZrC layers form at the interfaces between the bulk metallic glasses and the WC or SiC particles. Si and W are released into the matrix in which Si enhanced the glass forming ability. The composites are tested in compression and tension experiments. Compressive strain to failure increases by over 300% compared to the unreinforced Zr57Nb5Al10Cu15.4Ni12.6 and the energy to break of the tensile samples increases by over 50% adding 15 vol. % W.

Tensile deformation micromechanisms for bulk metallic glass matrix composites: From work-hardening to softening

2011 ◽  
Vol 59 (10) ◽  
pp. 4126-4137 ◽  
Author(s):  
J.W. Qiao ◽  
A.C. Sun ◽  
E.W. Huang ◽  
Y. Zhang ◽  
P.K. Liaw ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Work Hardening ◽  
Glass Matrix ◽  
Tensile Deformation ◽  
Matrix Composites ◽  
Glass Matrix Composites

scholarly journals Plasticity-improved Zr–Cu–Al bulk metallic glass matrix composites containing martensite phase

2005 ◽  
Vol 87 (5) ◽  
pp. 051905 ◽  
Author(s):  
Y. F. Sun ◽  
B. C. Wei ◽  
Y. R. Wang ◽  
W. H. Li ◽  
T. L. Cheung ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Matrix ◽  
Martensite Phase ◽  
Matrix Composites ◽  
Glass Matrix Composites

On the Inoculation and Phase Formation of Zr47.5Cu45.5Al5Co2 and Zr65Cu15Al10Ni10 Bulk Metallic Glass Matrix Composites

2020 ◽  
Vol 1158 ◽  
pp. 43-97
Author(s):  
Muhammad Musaddique Ali Rafique
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Phase Formation ◽  
Glass Matrix ◽  
Structural Engineering ◽  
Matrix Composites ◽  
Strain Limit ◽  
Glass Matrix Composites ◽  
Evolution Of Microstructure ◽  
Electron Imaging

Bulk metallic glass matrix composites have emerged as new potential material for structural engineering applications owing to their superior strength, hardness and high elastic strain limit. However, their behaviour is dubious. They manifest brittleness and inferior ductility which limit their applications. Various methods have been proposed to overcome this problem. Out of these, introduction of foreign particles (inoculants) during solidification have been proposed as most effective. In this study, an effort has been made to delimit this drawback. A systematic tale has been presented which explain the evolution of microstructure in Zr47.5Cu45.5Al5Co2 and Zr65Cu15Al10Ni10 bulk metallic glass matrix composites with varying percentage of ZrC inoculant as analysed by secondary electron and back scatter electron imaging of as cast unetched samples. A support is provided to hypothesis that inoculation remain successful in promoting phase formation and crystallinity and improve toughness.

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