scholarly journals The effect of residual strain on twinning in shock-loaded copper

1986 ◽  
Vol 44 ◽  
pp. 422-423
Author(s):  
G.T. Gray
Keyword(s):  
Thin Films ◽  
Plastic Strain ◽  
Residual Strain ◽  
Shock Loading ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Experimental Techniques ◽  
Published Data ◽  
Loading Conditions

Under shock-loading, twinning is observed in metals that do not twin under conventional loading conditions, for example copper and nickel where the stacking fault energy is about 78 and 128 ergs/cm2, respectively. Contradictions in the published data on the twinning stress in copper (from 1.6 GPa in thin films to 14.5-20 GPa in bulk specimens suggest differences associated with experimental techniques. This study examines the role of residual plastic strain (eres) on the deformation substructures, particularly twinning, in shock-roaded copper.

The role of stacking fault energy on galling and wear behavior

Wear ◽  
1982 ◽  
Vol 75 (2) ◽  
pp. 241-252 ◽  
Author(s):  
K.J. Bhansali ◽  
A.E. Miller
Keyword(s):  
Wear Behavior ◽  
Stacking Fault ◽  
Stacking Fault Energy

Interaction between Dislocation Sliding and Damage Structure in Ion-irradiated Stainless Steels

2008 ◽  
Vol 1125 ◽  
Author(s):  
Terumitsu Miura ◽  
Katsuhiko Fujii ◽  
Koji Fukuya
Keyword(s):  
Shear Strength ◽  
Plastic Strain ◽  
Stainless Steels ◽  
Austenitic Stainless Steels ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Dislocation Loops ◽  
Number Density ◽  
Damage Structure

ABSTRACTThe interaction between dislocation sliding and damage structure in ion-irradiated austenitic stainless steels was investigated. Solution annealed type 316 and 304 stainless steels (316SS and 304SS) were irradiated with 2.8 MeV Fe2+ ions at 300 °C up to 10 dpa and tensiled to 2% plastic strain at 300 °C. Dislocations moving from unirradiated matrix were prevented due to the interactions with the damage structures consisted of dislocation loops and voids in the damage region. The prevention of dislocation movements by the damage structures became strong in 304SS compared in 316SS; probably due to lower stacking fault energy in 304SS. The prevention of dislocation movements was weak for Fe ion-irradiated specimens in which the increase in shear strength calculated from the size and number density of the defects was small compared to He ion-irradiated specimens.

Role of stacking-fault energy in the mechanical behavior of materials

1970 ◽  
Vol 13 (3) ◽  
pp. 326-330
Author(s):  
L. D. Sokolov ◽  
G. P. Guslyakova ◽  
V. A. Skudnov ◽  
A. M. Shneiberg
Keyword(s):  
Mechanical Behavior ◽  
Stacking Fault ◽  
Stacking Fault Energy

Some Dislocation Features in Deformed Copper and Alpha Brass

1968 ◽  
Vol 26 ◽  
pp. 272-273
Author(s):  
F. I. Grace
Keyword(s):  
Shock Loading ◽  
Cell Structure ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
304 Stainless Steel ◽  
Cell Structures ◽  
Dislocation Arrays ◽  
A Cell ◽  
Silicon Bronze ◽  
Alpha Brass

The nature of the dislocation arrays in f.c.c. metals after conventional deformation has been shown to be a function of the stacking fault energy. For metals with high stacking fault energy, such as copper, nickel and aluminum, the dislocations responsible for plastic deformation appear in the form of a cell structure. When the stacking fault energy is low, cell structures are not observed. At present, there are indications that the stacking fault energy may also be important when unconventional means of deformation are encountered, as in the case of shock loading. Nolder and Thomas and Johari and Thomas observed cell structures in nickel and copper while Otte and Holland and Inman, Murr and Rose observed layered-type structures in silicon bronze and 304 stainless steel after shock deformation.

Role of stacking fault energy in strengthening due to cryo-deformation of FCC metals

2010 ◽  
Vol 527 (29-30) ◽  
pp. 7624-7630 ◽  
Author(s):  
V. Subramanya Sarma ◽  
J. Wang ◽  
W.W. Jian ◽  
A. Kauffmann ◽  
H. Conrad ◽  
...  
Keyword(s):  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Fcc Metals
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