Patterns of the localization of plastic deformation in Hadfield steel single crystals under tension

2018 ◽  
Author(s):  
Sergey Kolosov ◽  
Svetlana Barannikova ◽  
Yulia Li ◽  
Lev Zuev
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Hadfield Steel ◽  
Localization Of Plastic Deformation

On the localization of plastic deformation in BCC single crystals

1980 ◽  
Vol 14 (1) ◽  
pp. 47-52 ◽  
Author(s):  
B. Pegel ◽  
K. Schlaubitz ◽  
P. Burck ◽  
A. Luft ◽  
B. Brenner ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Localization Of Plastic Deformation

Localization of plastic deformation in alloyed γ-iron single crystals electrolytically saturated with hydrogen

2013 ◽  
Vol 43 (8) ◽  
pp. 480-484 ◽  
Author(s):  
G. V. Shlyakhova ◽  
S. A. Barannikova ◽  
L. B. Zuev ◽  
D. A. Kosinov
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Localization Of Plastic Deformation

Localization of plastic deformation in Cu and Ni single crystals

2002 ◽  
Vol 47 (4) ◽  
pp. 672-678 ◽  
Author(s):  
V. I. Danilov ◽  
S. A. Barannikova ◽  
K. V. Gonchikov ◽  
L. B. Zuev
Keyword(s):  
Plastic Deformation ◽  
Single Crystals ◽  
Localization Of Plastic Deformation

Investigation of shock-wave deformation history from recovered structure

1986 ◽  
Vol 44 ◽  
pp. 434-435
Author(s):  
M.A. Mogilevsky ◽  
L.S. Bushnev
Keyword(s):  
Shock Wave ◽  
Plastic Deformation ◽  
Dislocation Density ◽  
Shock Waves ◽  
Shock Front ◽  
Single Crystals ◽  
Residual Deformation ◽  
Deformation Structure ◽  
Deformation History ◽  
Deformation Velocity

Single crystals of Al were loaded by 15 to 40 GPa shock waves at 77 K with a pulse duration of 1.0 to 0.5 μs and a residual deformation of ∼1%. The analysis of deformation structure peculiarities allows the deformation history to be re-established.After a 20 to 40 GPa loading the dislocation density in the recovered samples was about 1010 cm-2. By measuring the thickness of the 40 GPa shock front in Al, a plastic deformation velocity of 1.07 x 108 s-1 is obtained, from where the moving dislocation density at the front is 7 x 1010 cm-2. A very small part of dislocations moves during the whole time of compression, i.e. a total dislocation density at the front must be in excess of this value by one or two orders. Consequently, due to extremely high stresses, at the front there exists a very unstable structure which is rearranged later with a noticeable decrease in dislocation density.

On effect of surface hardening on impact and abrasive wear resistance of Hadfi eld steel

2020 ◽  
pp. 252-255
Author(s):  
V.I. Bolobov ◽  
V.S. Bochkov ◽  
E.V. Akhmerov ◽  
V.A. Plashchinsky ◽  
E.A. Krivokrisenko E.A.
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Work Hardening ◽  
Surface Hardening ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
Hadfield Steel ◽  
Mining Equipment ◽  
Effect Of Surface

On the example of Hadfield steel, as the most common material of fast-wearing parts of mining equipment, the effect of surface hardening by plastic deformation on their impact and abrasive wear resistance is considered. Wear test is conducted on magnetic ironstone as typical representative of abrasive and hard rock. As result of wear of initial samples with hardness of ∼200 HB and samples pre-hardened with different intensities to the hardness of 300, 337 and 368 HB, it is found that during the initial testing period, the initial samples pass the “self-cold-work hardening” stage with increase in hardness to ∼250 HB, which remains virtually unchanged during further tests; the hardness of the pre-hardened samples does not change significantly throughout the tests. It is established that the rate of impact-abrasive wear of pre-hardened samples is significantly (up to 1.4 times) lower than the original ones that are not subjected to plastic deformation, and decreases with increasing degree of cold-work hardening. Preliminary surface hardening by plastic deformation can serve as effective way to increase the service life of fast-wearing working parts of mining equipment.

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