Enabling Ultrahigh Plastic Flow and Work Hardening in Twinned Gold Nanowires

Nano Letters ◽  
2009 ◽  
Vol 9 (4) ◽  
pp. 1517-1522 ◽  
Author(s):  
Chuang Deng ◽  
Frederic Sansoz
Keyword(s):  
Plastic Flow ◽  
Work Hardening ◽  
Gold Nanowires

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.

scholarly journals Atomic-Size Oscillations in Conductance Histograms for Gold Nanowires and the Influence of Work Hardening

2005 ◽  
Vol 95 (25) ◽  
Author(s):  
I. K. Yanson ◽  
O. I. Shklyarevskii ◽  
Sz. Csonka ◽  
H. van Kempen ◽  
S. Speller ◽  
...  
Keyword(s):  
Work Hardening ◽  
Gold Nanowires ◽  
Atomic Size

Plastic Deformation when Cutting into an Inclined Plane

1967 ◽  
Vol 9 (1) ◽  
pp. 1-10 ◽  
Author(s):  
W. B. Palmer
Keyword(s):  
Plastic Deformation ◽  
Plastic Flow ◽  
Work Hardening ◽  
Slip Line ◽  
Inclined Plane ◽  
Line Field ◽  
Hardening Material ◽  
Slip Line Field ◽  
Theory Of Plasticity

Plastic flow and tool forces were observed as an orthogonal tool cut slowly into an inclined plane of En 9 steel. A slip-line field is constructed which represents the observed flow, and on the basis of the theory of plasticity for work-hardening material estimates of stress are consistent with observed tool forces.

The effect of strain rate on the plastic flow characteristics of steel and aluminium sheet

1966 ◽  
Vol 1 (5) ◽  
pp. 439-446 ◽  
Author(s):  
A N Bramley ◽  
P B Mellor
Keyword(s):  
Strain Rate ◽  
Uniaxial Tension ◽  
Plastic Flow ◽  
Work Hardening ◽  
Sheet Steel ◽  
Flow Characteristics ◽  
Strain Rates ◽  
Plastic Strains ◽  
Aluminium Sheet

Work-hardening characteristics for sheet steel and aluminium have been obtained experimentally over a range of strain rates from 10−4 to 102/s. Use of the diaphragm test enables work-hardening characteristics to be obtained to much higher plastic strains than is possible in uniaxial tension. Results for killed steel show that the slope of the work-hardening characteristics decreases with increase in strain rate. Tentative extrapolation of the results suggests that if similar tests could be carried out at a strain rate of 104 then the work hardening characteristic would be that of an ideally plastic solid. In the case of aluminium the above phenomenon is not so marked and it is not possible to make even a tentative extrapolation to higher strain rates.

scholarly journals Масштабный эффект при автоволновой пластической деформации

2020 ◽  
Vol 46 (17) ◽  
pp. 18
Author(s):  
Л.Б. Зуев ◽  
В.И. Данилов ◽  
М.В. Надежкин
Keyword(s):  
Plastic Flow ◽  
Work Hardening ◽  
Pure Aluminum ◽  
Spatial Parameter ◽  
Logarithmic Law ◽  
Relationship Of ◽  
The Relationship

The relationship between the spatial parameter of the development of localized plastic flow (the length of the autowave of localized plasticity) and the length of the deformed sample is studied. In experiments conducted on polycrystalline samples from an alloy of zirconium and technically pure aluminum, the logarithmic law of the relationship of these quantities, acting at the stage of Taylor parabolic work hardening, was established.

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