Zobrazeno 1 - 8
of 8
pro vyhledávání: '"A. B. Vainman"'
Publikováno v:
Power Technology and Engineering. 46:227-234
The main causes of damage to the water-wall tubes of hot-water boilers are discussed. The quality of the system water, design factors, and furnace conditions contribute to the damage. Transverse fatigue and corrosion-fatigue cracks on the outer and i
Autor:
A. B. Vainman, N. A. Malakhov
Publikováno v:
Thermal Engineering. 54:390-398
This paper is concerned with characteristic features and drawbacks of water chemistry conditions for supercritical-pressure power units start-up. A corrosion-active combination of the low quality of working medium and high oxygen content there in is
Autor:
A. V. Zhabrov, A. B. Vainman
Publikováno v:
Power Technology and Engineering. 37:45-52
Kinds of damage in drums of high-pressure powerplant boilers in the places of welding of separation devices by austenite electrodes are described. Results of a complex study of damaged metal are presented. The mechanism of damage caused by contact (e
Publikováno v:
Scopus-Elsevier
We present the comparative analysis of the data on corrosion characteristics and cyclic corrosion crack-growth resistance of the unused and worn-out metal of feed pipelines of supercritical-pressure power units. It is shown that the electrochemical c
Publikováno v:
Materials Science. 31:624-635
We present the results of the investigation of damaged metals of various components of steam-and-water systems of supercritical-pressure power units operating in water-chemical modes with dosing of oxygen. It is shown that the influence of working me
Publikováno v:
Materials Science. 30:484-490
We analyze the characteristics of acoustic emission (AE) observed in the process of mechanical testing of hydrogenated and hydrogen-free specimens of thermal power equipment in uniaxial tension and three-point bending. It is shown that, in both cases
Publikováno v:
Soviet Materials Science. 27:25-29
Reasons are examined for damage to unheated bends in thermal power station pipes made of steel 20 and steel 12Kh1MF. Corrosion and thermal fatigue are accompanied by creep and by a substantial contribution from the development of brittle cracks on ac
Publikováno v:
Soviet Materials Science. 23:421-425
A significant number of failures encountered in high-pressure steam boilers of thermal electric power stations are caused by damage of the tubes of the steam superheaters, which are made of 20, 12Kh1MF, 12Kh2MFSR and 12Kh18N10T steels. A statistical