Electric-Spark Alloying Technology for Improving the Working Life of Steam Turbine Rotor Blades and Equipment for its Implementation1

被引：1
|
作者：
Belyakov A.V. [1 ]
Sarantsev V.V. [2 ]
Gorbachev A.N. [1 ]
Panteleenko F.I. [2 ]
Azarenko E.L. [2 ]
Reutov B.F. [1 ]
机构：
[1] JSC “All-Russia Heat Engineering Institute” (VTI), Moscow
[2] Belorussian National Technical University, Minsk
来源：
Power Technology and Engineering | 2016年 / 50卷 / 1期
关键词：
blade trailing edge; coating erosion resistance; electric-spark alloying; electric-spark coatings; electromechanical vibrator; leading edge; single pulse energy; steam turbine blades; thermal power station;
D O I：
10.1007/s10749-016-0661-3
中图分类号：
学科分类号：
摘要：
Work is devoted to studying development of technology for forming erosion-resistant coatings for steam turbine rotor blades by electric-spark alloying. Comparative analysis is provided for current methods of steam turbine rotor blade strengthening and repair. It is shown that electric-spark coating formation on leading edges is important, and development of forming technology is connected with a search for new materials. New engineering solutions are found for coating formation from cobalt stellites, the properties of cobalt stellite and cermet hard alloy VK8 electric-spark coatings are studied, and the effect of operating unit parameters on coating formation is demonstrated. New vibrator structures are created for forming electric-spark coatings making it possible to expand the range of electrode vibration to 260 Hz, and specimens are prepared for testing with coating formation. © 2016, Springer Science+Business Media New York.
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页码：71 / 74
页数：3
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