Effects of shock loading on the structure and properties of austenitic dispersion-hardening steel

1982 ◽  
Vol 18 (3) ◽  
pp. 355-358
Author(s):  
O. A. Bannykh ◽  
V. M. Blinov ◽  
I. N. Gavril'ev ◽  
A. A. Deribas ◽  
T. M. Sobolenko ◽  
...  
Keyword(s):  
Shock Loading ◽  
Dispersion Hardening ◽  
Structure And Properties

scholarly journals THE INFLUENCE OF MECHANICALLY ALLOYED MODIFYING MASTER LIGATURES ON STRUCTURE AND PROPERTIES OF WELDED JOINTS

2018 ◽  
pp. 102-108
Author(s):  
F. G. Lovshenko ◽  
G. F. Lovshenko ◽  
A. I. Khabibulin
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Mechanical Alloying ◽  
Weld Metal ◽  
Welded Joints ◽  
Dispersion Hardening ◽  
Structure And Properties ◽  
Mechanically Alloyed ◽  
Actual Problem ◽  
Effective Technology

Actual problem of modern welding production is the creation of electrodes for maximum performance and efficiency of the process whithin the required reliability and durability of the structure. A promising way to improve mechanical properties of the weld metal is the implementation of the mechanism of dispersion hardening. Reactionary mechanical alloying is an effective technology of obtaining nanocrystalline modifying ligatures and modifiers. The use of electrodes with an experimental coating containing a mechanically alloyed, composite ligature to resolve transcrystalline type of structure of the weld metal and reduce the grain size by 2.5–3.0 times (from # 8–9 to #11–12) reduces by 20–30% the threshold of cold brittleness and increase by 15– 25% of the mechanical properties of the weld metal.

Effect of sulfur on structure and properties of Fe-Ni-Cr-based dispersion hardening alloys

1983 ◽  
Vol 25 (12) ◽  
pp. 912-915
Author(s):  
V. A. Strizhak ◽  
S. I. Stepanov ◽  
V. V. Kiselev ◽  
I. A. Gorlach ◽  
O. A. Khomenko ◽  
...  
Keyword(s):  
Dispersion Hardening ◽  
Structure And Properties

scholarly journals Structure and properties of fully-penetrated metal of two-phase titanium alloy with dispersion hardening at AAW

2016 ◽  
Vol 2016 (11) ◽  
pp. 9-16
Author(s):  
G.M. Grigorenko ◽  
◽  
S.V. Akhonin ◽  
O.M. Zadorozhnyuk ◽  
I.N. Klochkov ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Dispersion Hardening ◽  
Structure And Properties ◽  
Two Phase

Effect of Shock Loading with Ultrasound on the Structure and Properties of the Metal of Welds and Products

Metallurgist ◽  
2005 ◽  
Vol 49 (5-6) ◽  
pp. 242-246 ◽  
Author(s):  
V. I. Slavov ◽  
V. I. Malygin ◽  
V. A. Bazanov ◽  
A. A. Komkov ◽  
V. N. Serebryanyi
Keyword(s):  
Shock Loading ◽  
Structure And Properties

scholarly journals Structure and properties of fully-penetrated metal of two-phase titanium alloy with dispersion hardening at AAW

2016 ◽  
Vol 2016 (11) ◽  
pp. 11-19
Author(s):  
G.M. Grigorenko ◽  
◽  
S.V. Akhonin ◽  
O.M. Zadorozhnyuk ◽  
I.N. Klochkov ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Dispersion Hardening ◽  
Structure And Properties ◽  
Two Phase

Electron Microscope Observations of Mechanical Metamorphism in Iron Meteorites

1970 ◽  
Vol 28 ◽  
pp. 488-489
Author(s):  
D. Faulkner ◽  
G.W. Lorimer ◽  
H.J. Axon
Keyword(s):  
Electron Microscope ◽  
Defect Structure ◽  
Shock Loading ◽  
List Type ◽  
Iron Meteorites

It is now generally accepted that meteorites are fragments produced by the collision of parent bodies of asteroidal dimensions. Optical metallographic evidence suggests that there exists a group of iron meteorites which exhibit structures similar to those observed in explosively shock loaded iron. It seems likely that shock loading of meteorites could be produced by preterrestrial impact of their parent bodies as mentioned above.We have therefore looked at the defect structure of one of these meteorites (Trenton) and compared the results with those made on a) an unshocked ‘standard’ meteorite (Canyon Diablo)b) an artificially shocked ‘standard’ meteorite (Canyon Diablo) andc) an artificially shocked specimen of pure α-iron.

Electron Microscopy of Shock Loaded Polycrystalline Beryllium

1974 ◽  
Vol 32 ◽  
pp. 506-507 ◽  
Author(s):  
J. M. Galbraith ◽  
L. E. Murr ◽  
A. L. Stevens
Keyword(s):  
Electron Microscopy ◽  
Wave Propagation ◽  
Structural Change ◽  
Single Crystal ◽  
Diffraction Pattern ◽  
Shock Loading ◽  
Slip Systems ◽  
Compression Tests ◽  
X Ray Diffraction ◽  
X Ray

Uniaxial compression tests and hydrostatic tests at pressures up to 27 kbars have been performed to determine operating slip systems in single crystal and polycrystal1ine beryllium. A recent study has been made of wave propagation in single crystal beryllium by shock loading to selectively activate various slip systems, and this has been followed by a study of wave propagation and spallation in textured, polycrystal1ine beryllium. An alteration in the X-ray diffraction pattern has been noted after shock loading, but this alteration has not yet been correlated with any structural change occurring during shock loading of polycrystal1ine beryllium.This study is being conducted in an effort to characterize the effects of shock loading on textured, polycrystal1ine beryllium. Samples were fabricated from a billet of Kawecki-Berylco hot pressed HP-10 beryllium.

Effect of Shock Loading on the Microstructure of Uniloy 326

1974 ◽  
Vol 32 ◽  
pp. 504-505
Author(s):  
K. P. Staudhammer ◽  
L. E. Murr
Keyword(s):  
Grain Size ◽  
Shock Loading ◽  
Current Investigation ◽  
Two Phase ◽  
05 C ◽  
Shock Deformation ◽  
Heat Treated

The effect of shock loading on a variety of steels has been reviewed recently by Leslie. It is generally observed that significant changes in microstructure and microhardness are produced by explosive shock deformation. While the effect of shock loading on austenitic, ferritic, martensitic, and pearlitic structures has been investigated, there have been no systematic studies of the shock-loading of microduplex structures.In the current investigation, the shock-loading response of millrolled and heat-treated Uniloy 326 (thickness 60 mil) having a residual grain size of 1 to 2μ before shock loading was studied. Uniloy 326 is a two phase (microduplex) alloy consisting of 30% austenite (γ) in a ferrite (α) matrix; with the composition.3% Ti, 1% Mn, .6% Si,.05% C, 6% Ni, 26% Cr, balance Fe.

Comparison of Recovery and Recrystallization in Stainless Steel Following Plane-Wave Shock Loading and Explosive Forming

1970 ◽  
Vol 28 ◽  
pp. 428-429 ◽  
Author(s):  
J. A. Korbonski ◽  
L. E. Murr
Keyword(s):  
Stainless Steel ◽  
Shock Loading ◽  
Pressure Pulse ◽  
Shock Pressure ◽  
304 Stainless Steel ◽  
Strain Rates ◽  
Two Dimensional ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Explosive Forming

Comparison of recovery rates in materials deformed by a unidimensional and two dimensional strains at strain rates in excess of 104 sec.−1 was performed on AISI 304 Stainless Steel. A number of unidirectionally strained foil samples were deformed by shock waves at graduated pressure levels as described by Murr and Grace. The two dimensionally strained foil samples were obtained from radially expanded cylinders by a constant shock pressure pulse and graduated strain as described by Foitz, et al.

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