High-rate plastic deformation of a copper single crystal under loading by spherical converging shock waves

AbstractA small single crystal of copper with a notch has been bent by use of the molecular dynamics method. The bend axis was [110]. Dislocations were created near the tip of the notch and moved on (111) slip plane. Pulling a copper single crystal, half dislocations were created in such a way that the bending was compensated.

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Anisotropy of Sliding Damage on the (001) Surface of Copper Single Crystal

Journal of Lubrication Technology ◽

10.1115/1.3555019 ◽

1969 ◽

Vol 91 (4) ◽

pp. 652-654

Author(s):

Norimune Soda ◽

Jun’Iti Sato

Keyword(s):

Plastic Deformation ◽

Single Crystal ◽

Work Hardening ◽

Wear Debris ◽

Elastic Anisotropy ◽

Elastic Recovery ◽

Liquid Paraffin ◽

Surface Damage ◽

Copper Single Crystal ◽

Slip Traces

Sliding tests are carried out on the (001) surface of a copper single crystal lubricated with liquid paraffin using a diamond cone slider. The experimental results show that widths of sliding tracks vary periodically with crystallographic directions. In the present experiment the surface is only deformed, and no wear debris is produced. The elastic anisotropy with respect to the direction of sliding is considered, and the distribution of slip traces around the track is observed on the (001) surface of copper. The results indicate that in the surface damage during sliding the plastic deformation and work-hardening are more important than elastic recovery of the surface.

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High-Rate deformation of Armco iron under loading by spherical converging shock waves

Doklady Physics ◽

10.1134/s1028335807080046 ◽

2007 ◽

Vol 52 (8) ◽

pp. 418-421 ◽

Cited By ~ 3

Author(s):

A. V. Dobromyslov ◽

E. A. Kozlov ◽

B. V. Litvinov ◽

N. I. Taluts

Keyword(s):

Shock Waves ◽

Armco Iron ◽

High Rate ◽

Converging Shock Waves ◽

High Rate Deformation

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Mapping mesoscale heterogeneity in the plastic deformation of a copper single crystal

The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics ◽

10.1080/14786430802558577 ◽

2009 ◽

Vol 89 (1) ◽

pp. 77-107 ◽

Cited By ~ 21

Author(s):

K.R. Magid ◽

J.N. Florando ◽

D.H. Lassila ◽

M.M. LeBlanc ◽

N. Tamura ◽

...

Keyword(s):

Plastic Deformation ◽

Single Crystal ◽

Copper Single Crystal

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Structure of Palladium Single-Crystal Films Prepared by Flash Evaporation onto (001) NaCl Substrates

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100069272 ◽

1970 ◽

Vol 28 ◽

pp. 456-457

Author(s):

L. E. Murr ◽

G. Wong

Keyword(s):

Single Crystal ◽

High Vacuum ◽

Ultra High Vacuum ◽

High Rate ◽

Flash Evaporation ◽

Optimum Load ◽

Single Crystal Films ◽

Crystal Films ◽

A Current

Palladium single-crystal films have been prepared by Matthews in ultra-high vacuum by evaporation onto (001) NaCl substrates cleaved in-situ, and maintained at ∼ 350° C. Murr has also produced large-grained and single-crystal Pd films by high-rate evaporation onto (001) NaCl air-cleaved substrates at 350°C. In the present work, very large (∼ 3cm2), continuous single-crystal films of Pd have been prepared by flash evaporation onto air-cleaved (001) NaCl substrates at temperatures at or below 250°C. Evaporation rates estimated to be ≧ 2000 Å/sec, were obtained by effectively short-circuiting 1 mil tungsten evaporation boats in a self-regulating system which maintained an optimum load current of approximately 90 amperes; corresponding to a current density through the boat of ∼ 4 × 104 amperes/cm2.

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