Low Temperature Failure of Fe76Ni2Si9B13 Compacted from Amorphous Glass Powder

2009 ◽  
Vol 409 ◽  
pp. 358-361
Author(s):  
Jozef Miškuf ◽  
Kornel Csach ◽  
Alena Juríková ◽  
Elena D. Tabachnikova ◽  
Vladimir Z. Bengus ◽  
...  
Keyword(s):  
Fracture Surface ◽  
Brittle Failure ◽  
Amorphous Alloys ◽  
Fracture Stress ◽  
Glass Powder ◽  
Amorphous Powder ◽  
Fracture Surface Morphology ◽  
Explosive Compaction ◽  
Bulk Amorphous Alloys ◽  
Amorphous Glass

The fracture surface morphology of Fe76Ni2Si9B13 bulk amorphous alloys failed in compression at temperatures from 4.2 to 300 K was investigated. The samples were prepared by the explosive compaction technique from amorphous powder. It has been found that fracture stress decreases with temperature from 300 to 4.2 K. In this temperature range, the brittle failure prevails. The failure propagates across particles and along particle boundaries too. The fracture micromorphology is riverlike pattern with fine dimples.

Local Deformation of Microsized Amorphous Powder at Low Temperatures

2013 ◽  
Vol 586 ◽  
pp. 210-213
Author(s):  
Jozef Miškuf ◽  
Kornel Csach ◽  
Alena Juríková ◽  
Elena D. Tabachnikova ◽  
Vladimir Z. Bengus
Keyword(s):  
Shock Wave ◽  
Fracture Toughness ◽  
Fracture Surface ◽  
Low Temperatures ◽  
Brittle Failure ◽  
Amorphous Alloys ◽  
Amorphous Powder ◽  
Local Deformation ◽  
Failure Characteristics ◽  
Bulk Amorphous Alloys

The investigations of the failure characteristics of Fe76Ni2Si9B13 bulk amorphous alloys prepared by shock wave consolidation of powders were performed. The strength decreased with the lowering temperature from 300 to 4.2 K. For this temperature interval, the brittle failure prevails. The failure propagates across particles as well as along particle boundaries. The riverlike pattern with fine dimples was observed on the fracture surface. The apparent surface energy and the fracture toughness values estimated by means of the fractography were similar to these for typical brittle materials.

Effect of Co and Cu Alloying on Nd-Fe-Al Based Bulk Amorphous Alloys

2000 ◽  
Vol 343-346 ◽  
pp. 97-102 ◽  
Author(s):  
G.J. Fan ◽  
Jürgen Eckert ◽  
W. Löser ◽  
S. Roth ◽  
Ludwig Schultz
Keyword(s):  
Amorphous Alloys ◽  
Bulk Amorphous Alloys

Crystallization and fracture behavior of the Zr65−xAl7.5Cu17.5Ni10Six bulk amorphous alloys

2005 ◽  
Vol 89 (1) ◽  
pp. 122-129 ◽  
Author(s):  
J.S.C. Jang ◽  
Y.W. Chen ◽  
L.J. Chang ◽  
H.Z. Cheng ◽  
C.C. Huang ◽  
...  
Keyword(s):  
Amorphous Alloys ◽  
Fracture Behavior ◽  
Bulk Amorphous Alloys

Corrosion behavior of the Mg65Cu25Gd10 bulk amorphous alloys

2007 ◽  
Vol 449-451 ◽  
pp. 636-639 ◽  
Author(s):  
F.X. Qin ◽  
G.T. Bae ◽  
Z.H. Dan ◽  
H. Lee ◽  
N.J. Kim
Keyword(s):  
Corrosion Behavior ◽  
Amorphous Alloys ◽  
Bulk Amorphous Alloys

Effect of peanut and walnut shells powders on tensile properties and morphological test by using heat cured PMMA as a matrix for prosthetic Denture

2021 ◽  
Vol 39 (2A) ◽  
pp. 196-205
Author(s):  
Zainab M. Abdul Monem ◽  
Jawad K. Oleiwi ◽  
Qahtan A. Hamad
Keyword(s):  
Fracture Surface ◽  
Surface Morphology ◽  
Matrix Material ◽  
Weight Fraction ◽  
Fracture Surface Morphology ◽  
Ductile Materials ◽  
Walnut Shells ◽  
Peanut Shells ◽  
The Matrix ◽  
Material Powder

In the current Research , the heat cured   matrix material powder of PMMA was reinforced with peanut and walnut shells (natural powders) which are chemically treated with 5% (w/v) (NaOH) to improve the matrix bonding (PMMA) before being used as a reinforcing powder and adding to exactly similar averages particle sizes ≤ (53µm), with different weight fractions of (4, 8, and 12 wt.%). The ASTM D638 is used for composite specimens of the tensile test. The results indicated that the Elastic modulus values reached its maximum value at (8 wt.%.) when reinforced with peanut shells particles (1.053Gpa) , while ,the values of tensile strength, elongation percentage at break, decrease as the weight fraction of peanut and walnut shells powder increase and the lowest values is obtained by reinforcing with peanut shells particles to reach their minimum values at (12 wt.%.) where the lowest values of them are (29 MPa, 2.758% ) respectively. The fracture surface morphology of pure PMMA seemed to be homogenous morphology in (SEM) test, whereas the fracture surface morphology of PMMA composite reinforced by (peanut and walnut shells) powders and shows a roughness fracture surface morphology this refer to semi ductile to ductile materials.

scholarly journals Correction to: Influence of Alloying on the Corrosion Resistance of Bulk Amorphous Alloys Based on Iron

2018 ◽  
Vol 54 (1) ◽  
pp. 138-138
Author(s):  
O. M. Hertsyk ◽  
M. O. Kovbuz ◽  
L. M. Boichyshyn ◽  
T. G. Pereverzeva ◽  
O. V. Reshetnyak
Keyword(s):  
Corrosion Resistance ◽  
Amorphous Alloys ◽  
Bulk Amorphous Alloys
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