Work-hardening and susceptibility to plastic flow in metallic glasses (rolling deformation)

1981 ◽  
Vol 16 (9) ◽  
pp. 2411-2418 ◽  
Author(s):  
S. Takayama
Keyword(s):  
Plastic Flow ◽  
Metallic Glasses ◽  
Work Hardening ◽  
Rolling Deformation

Critical growth and energy barriers of atomic-scale plastic flow units in metallic glasses

2021 ◽  
Vol 202 ◽  
pp. 114033
Author(s):  
J.H. Yu ◽  
L.Q. Shen ◽  
D. Şopu ◽  
B.A. Sun ◽  
W.H. Wang
Keyword(s):  
Plastic Flow ◽  
Metallic Glasses ◽  
Critical Growth ◽  
Atomic Scale ◽  
Energy Barriers ◽  
Flow Units

Plastic Flow Localization Viewed as an Auto-Wave Process Generated in Deforming Metals

2011 ◽  
Vol 172-174 ◽  
pp. 1279-1283 ◽  
Author(s):  
Lev Zuev ◽  
Svetlana A. Barannikova
Keyword(s):  
Plastic Flow ◽  
Work Hardening ◽  
Wave Process ◽  
Detailed Comparison ◽  
Wave Number ◽  
Flow Localization ◽  
Macro Scale ◽  
Quantitative Characteristics ◽  
Flow Phenomena ◽  
Scale Levels

The localized plastic flow auto-waves observed for the stages of easy glide and linear work hardening in a number of metals are considered. The propagation rates were determined experimentally for the auto-waves in question with the aid of focused-image holography. The dispersion relation of quadratic form derived for localized plastic flow auto-waves and the dependencies of phase and group rates on wave number are discussed. A detailed comparison of the quantitative characteristics of phase and group waves has revealed that the two types of wave observed for the stages of easy glide and linear work hardening are closely related. An invariant is introduced for localized plastic flow phenomena occurring on the micro- and macro-scale levels in the deforming solid.

Serrated Plastic Flow of Various Metallic Glasses during Nanoindentation

2016 ◽  
Vol 368 ◽  
pp. 3-6
Author(s):  
Mária Huráková ◽  
Kornel Csach ◽  
Jozef Miškuf ◽  
Alena Juríková ◽  
Štefan Demčák ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Plastic Flow ◽  
Metallic Glasses ◽  
Alloy Composition ◽  
Loading Rate ◽  
Glass Forming Ability ◽  
Loading Rates ◽  
Glass Forming ◽  
Wide Range ◽  
The Individual

Nanoindentation experiments were executed on amorphous metallic ribbons made of Fe40Ni40B20, Cu47Ti35Zr11Ni6Si1 and Zr65Cu17.5Ni10Al7.5 that differ in microhardness and glass forming ability. The individual serrated plastic flow events were analyzed in a wide range of the loading rates. In the individual pop-in events of the load-displacement (P-h) curve the contributions of plastic deformation (Δhpl) were calculated depending on the loading rate and the alloy composition. It is concluded that the contribution of the serrated plastic deformation flow varies with the composition of the alloy. The highest plastic deformation for the individual pop-ins was observed for Zr-based metallic glasses.

Origin of Intermittent Plastic Flow and Instability of Shear Band Sliding in Bulk Metallic Glasses

2013 ◽  
Vol 110 (22) ◽  
Author(s):  
B. A. Sun ◽  
S. Pauly ◽  
J. Hu ◽  
W. H. Wang ◽  
U. Kühn ◽  
...  
Keyword(s):  
Shear Band ◽  
Plastic Flow ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses
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