Contents of the Paton Welding Journal
no.8, 2009 |
|
Page |
CHAIR OF WELDING INGINEERING OF THE ADMIRAL MAKAROV NATIONAL SHIPBUILDING UNIVERSITY IS 50 YEARS | 2 |
Kvasnitsky V.F., Bugaenko B.V., Goloborodko Zh.G., Ilyushenko V.M., Romanchuk N.P., Solonichenko Yu.V. and Shamraj A.N. Status of welding production at shipbuilding plants of Ukraine |
2 |
|
It is shown that in spite of economic problems all over the world the shipbuilding enterprises of Ukraine have available the modern efficient technologies and equipment which allows successful production of competitive products at the world market. |
Makhnenko V.I. and Kvasnitsky V.V. Peculiarities of formation of stress-strain state in diffusion bonds between dissimilar materials |
7 |
|
Stress-strain state (SSS), allowing for plastic creep strains, in cylindrical parts of metals with different physical-mechanical properties in diffusion bonding was studied by computer modelling based on the finite element method. The mechanisms of creep in diffusion bonds, as well as formation of SSS in them, were established. |
Dragan S.V., Yaros Yu.A. and Yaros A.A. Technology of automatic submerged-arc welding and cladding by low-density current |
12 |
|
The paper describes the results of application of power sources with a combined external volt-ampere characteristic for narrow-gap welding of plates and repair cladding of freight car wheel flanges. |
Kvasnitsky V.F., Matvienko M.V., Ermolaev G.V., Labartkava A.V. and Kuznetsov V.D. Influence of the ratio of dimensions of cylindrical parts from dissimilar materials on their stress-strain state in diffusion welding |
17 |
|
Computer simulation based on finite element method was used to study the influence of the ratio of dimensions (radii and height) of cylindrical parts of the type of cylinders and bushings from dissimilar materials on the stress-strain state in the butt zone in diffusion welding, allowing for plastic deformations under the conditions of loading by compression and thermal cycling, and to establish the regularities of its formation. |
Lebedev Yu.M. Influence of welding and post-weld heating on structural transformations and properties of HAZ of welded joints on hardening steels |
21 |
|
Experimental investigations of influence of welding and post-weld heating on hardness and impact toughness of simulated high-temperature areas of heat-affected zone (HAZ) of joints on low-carbon high-strength steels and medium-carbon 40Kh steel were carried out. Peculiarities of phase transformations in these steels were studied. It is determined that the most effective is fast post-weld heating of HAZ metal in a temperature interval, corresponding to intercritical interval of AC1--AC3. |
Vereshchago E.N. and Kostyuchenko V.I. Power supply systems based on resonance inverters |
27 |
|
The paper gives a generalizing analysis of development and application of promising resonance power sources for arc welding and related processes. Shown are the examples of development of special power supply systems on their basis with a reduced level of high-frequency noise and improved reliability. |
Kostin A.M. Experience of effective organisation of training of specialists of welding production for shipbuilding |
34 |
|
The positive experience of regional centre for training specialists of welding production for shipbuilding is described. |
SCIENTIFIC AND TECHNICAL | 2 |
Yushchenko K.A., Zadery B.A., Zvyagintseva A.V., Savchenko V.S., Gakh I.S. and Karasevskaya O.P. Peculiarities of structure of metal deposited on edges of single-crystal blades made from nickel superalloys |
36 |
|
Peculiarities of crystallography and structure of metal deposited on free edges of single-crystal blades made from heat-resistant alloy JS-26 are considered. Their dependence upon the crystallographic orientation of the initial metal has been established. It is shown that, in general, inheritance of the crystallographic orientation and changes in the structural state of the initial metal by the deposited metal in cladding obeys the same qualitative mechanisms as in welding. |
INDUSTRIAL | 2 |
Voronchuk A.P. Effect of concentration of hard particles on gas-abrasive wear resistance of composite alloy |
43 |
|
Effect of the concentration of hard particles on wear resistance of composite alloys is considered. The selectivity of wear of composite alloys is shown. Calculation of wear resistance of a composite alloy has been made by using the additivity rule, and comparative data on this alloy have been obtained by experiments. |
BRIEF INFORMATION | 2 |
Theses for scientific degrees |
45 |
NEWS | 2 |
Petranievsky Readings (devoted to 70th anniversary of creation of UONI-13 electrodes) |
47 |
To Centennial of Birth of G.V. Raevsky |
48 |
