scholarly journals Crystallization Behavior of Electrodeposited Pd-Ni-P Metallic Glass Films by Heat Treatment

2013 ◽  
Vol 64 (4) ◽  
pp. 244-247
Author(s):  
Chihiro MOCHIZUKI ◽  
Yuusei KIMURA ◽  
Hiroyuki ISSHIKI ◽  
Junji YAMANAKA ◽  
Masami SHIBATA
Keyword(s):  
Heat Treatment ◽  
Metallic Glass ◽  
Crystallization Behavior ◽  
Glass Films

TEM INVESTIGATION ON CRYSTALLIZATION BEHAVIOR OF A Fe68C10.5Si4.4B6.5P8.6Al2 BULK METALLIC GLASS

2009 ◽  
Vol 23 (06n07) ◽  
pp. 1223-1228
Author(s):  
KI BUEM KIM ◽  
HONG XIANG LI ◽  
SEONGHOON YI
Keyword(s):  
Heat Treatment ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Crystallization Behavior ◽  
Amorphous Matrix ◽  
Treatment Time ◽  
Annealing Treatment ◽  
Primary Crystallization ◽  
Heat Treatment Time ◽  
Nano Scale

TEM investigations on crystallization behavior of a Fe 68 C 10.5 Si 4.4 B 6.5 P 8.6 Al 2 bulk metallic glass reveals that the nano-scale fcc Fe phase formed by primary crystallization is homogeneously embedded in the amorphous matrix after heat treatment at 783 K for 30 min. With increasing heat treatment time (783 K for 45 min), a tetragonal Fe 3( C , B , P ) phase encapsulates the primary fcc Fe phase suppressing the growth of the fcc Fe phase. The Fe 3( C , B , P ) phase decomposes into a mixture of orthorhombic Fe 3( C , P ) and tetragonal Fe 3( B , P ) upon further annealing treatment at 783K.

Crystallization Behavior of an Au Based Metallic Glass at High Temperature

2019 ◽  
Author(s):  
F.X. Bai ◽  
S.J. Zheng ◽  
Y.X. Wang ◽  
J. Pan ◽  
J.H. Yao ◽  
...  
Keyword(s):  
High Temperature ◽  
Metallic Glass ◽  
Crystallization Behavior

Influence of sub-Tg annealing on microstructure and crystallization behavior of TiZr-based bulk metallic glass

2021 ◽  
Vol 565 ◽  
pp. 120855
Author(s):  
J.W. Lv ◽  
D.W. Yin ◽  
F.L. Wang ◽  
Y.J. Yang ◽  
M.Z. Ma ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Crystallization Behavior

Crystallization behavior, Al-Ce intermetallic formation, and microstructure refinement of near-eutectic Al–Si alloys by rare-earth element additions

2020 ◽  
Vol 111 (11) ◽  
pp. 938-952
Author(s):  
Bo Chi ◽  
Zhiming Shi ◽  
Cunquan Wang ◽  
Liming Wang ◽  
Hao Lian ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Rare Earth ◽  
Rare Earth Element ◽  
Crystallization Behavior ◽  
Earth Element ◽  
Microstructural Refinement ◽  
Preferential Growth ◽  
Intermetallic Formation ◽  
The Matrix

Abstract Near-eutectic Al-Si alloys have low strength and high brittleness because of the presence of many eutectic b-Si flakes, needle-like Al-Fe-Si intermetallics, and coarse α-Al grains. This study disclosed the effects of cerium-rich RE (rare earth) element modification on orientation characters of crystals, formation of Al-Ce compounds, and microstructural refinement to improve the microstructure and mechanical properties of the alloys. The RE addition depressed preferential growth along the close-packed and/or sub-closepacked planes and promoted growth along the non-closepacked planes, in which La and other elements were dissolved into needle-like Al11Ce3 phase. When the temperature decreased, Al11Ce3 was preferentially crystallized from the melts and then devitrified by attaching to the surface of β-Al5FeSi needles. Moreover, many small Al11Ce3 particles were precipitated in the matrix and on the Si surface by a T6 heat treatment. Eutectic β-Si phases were constructed into discontinuous networks, short rods, and even particles by RE additions, which were further transformed into fine nodules following the T6 treatment. α-Al grains and primary β-Al5FeSi needles were simultaneously refined. The addition of 1.0 wt.% REs and subsequent T6 treatment yielded the highest tensile strength, elongation, and hardness of the alloy.

Influence of the heat treatment on the crystallization mechanisms of Al85Y5Ni8Co2 metallic glass

2004 ◽  
Vol 343 (1-3) ◽  
pp. 143-149 ◽  
Author(s):  
Á. Révész ◽  
L.K. Varga ◽  
S. Suriñach ◽  
M.D. Baró
Keyword(s):  
Heat Treatment ◽  
Metallic Glass

Influence of heat-treatment on magnetic, magnetostrictive and piezomagnetic properties and structure of Fe64Ni10Nb3Cu1Si13B9 metallic glass

2004 ◽  
Vol 375-377 ◽  
pp. 1065-1068 ◽  
Author(s):  
Z. Kaczkowski ◽  
G. Vlasák ◽  
P. Švec ◽  
P. Duhaj ◽  
P. Ruuskanen ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Metallic Glass

NANOSCALE DIMPLES AND PERIODIC CORRUGATIONS ON FRACTURE SURFACE OF Zr-BASED BULK METALLIC GLASS COMPOSITE

2019 ◽  
Vol 26 (08) ◽  
pp. 1950037
Author(s):  
BO SHI ◽  
SHIYU LUAN ◽  
PEIPENG JIN
Keyword(s):  
Fracture Surface ◽  
Metallic Glass ◽  
Cooling Rate ◽  
Bulk Metallic Glass ◽  
Crystallization Behavior ◽  
Glass Composite ◽  
Bulk Metallic Glass Composite

Nanoscale dimples and periodic corrugations are observed on the fracture surface of Zr-based bulk metallic glass composite (BMGC). The nanoscale periodic corrugations display a curved shape, which is different from that observed in previous works. In addition, the crystallization behavior of [Formula: see text][Formula: see text][Formula: see text][Formula: see text] BMG was investigated. The second crystallization event of Zr-Cu-Ni-Al BMG can be controlled by annealing or tuning cooling rate. The in situ Zr-based BMGC was prepared via lowering cooling rate. The Zr-based BMGC displays completely brittleness.

Crystallization Behavior of Heat-Affected Zone by Laser Remelting Bulk Metallic Glass Zr55Al10Ni5Cu30

2010 ◽  
Vol 37 (8) ◽  
pp. 2104-2110 ◽  
Author(s):  
刘伟伟 Liu Weiwei ◽  
林鑫 Lin Xin ◽  
杨高林 Yang Gaolin ◽  
杨海欧 Yang Hai′ou ◽  
黄卫东 Huang Weidong ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Heat Affected Zone ◽  
Crystallization Behavior ◽  
Laser Remelting
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