Restoration of Steam Turbine Last Stage Rotor Blades by Laser Surfacing

被引：0
|
作者：
Nasteka D.V. [1 ]
Grachev O.E. [2 ]
Silevich V.M. [3 ]
Lebedeva A.I. [4 ]
机构：
[1] JSC Quartz Group, Moscow
[2] PJSC Unipro, Moscow
[3] OJSC NPO TsKTI, St. Petersburg
[4] National Research University MEI (NIU MEI), Moscow
来源：
Power Technology and Engineering | 2019年 / 53卷 / 02期
关键词：
blade restoration; erosion damage; laser-powder surfacing; rotor blades; steam turbine;
D O I：
10.1007/s10749-019-01061-5
中图分类号：
学科分类号：
摘要：
Technology is provided for restoring erosion damaged rotor blades of the last stages of steam turbine low-pressure cylinders (LPC) using laser-powder surfacing and application of an erosion-resistant coating. For this method there is typically low heat input into the blade basic metal, which improves its restoration reliability. Results are obtained for comprehensive experimental studies on specimens and blades, confirming the high quality of welded joints obtained by laser surfacing of nickel alloy proposed for restoring the blade profile of blade steels ÉI961-Sh and 15Kh11MF-Sh, and application of a stellite-6 erosion-resistant coating. The possibility is concluded of using the laser-powder surfacing method during refurbishment of steam turbine LPC rotor blades. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.
引用
下载
收藏
页码：208 / 212
页数：4
相关论文
共 50 条
  • [1] UNSTEADY FORCES IN LAST STAGE LP STEAM TURBINE ROTOR BLADES WITH EXHAUST HOOD
    Rzadkowski, Romuald
    Surwilo, Jan
    Kubitz, Leszek
    Lampart, Piotr
    Szymaniak, Mariusz
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2016, VOL 7B, 2016,
  • [2] AERODYNAMIC PARAMETRIZATION OF LAST STAGE STEAM TURBINE BLADES
    Schippling, Stefan
    Fuhrer, Christopher
    Vogt, Damian M.
    PROCEEDINGS OF ASME TURBO EXPO 2023: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, GT2023, VOL 10, 2023,
  • [3] THE DEVELOPMENT OF LONG LAST STAGE STEAM TURBINE BLADES
    McBean, Ivan
    Havakechian, Said
    Masserey, Pierre-Alain
    PROCEEDINGS OF THE ASME TURBO EXPO 2010: TURBOMACHINERY: AXIAL FLOW FAN AND COMPRESSOR AERODYNAMICS DESIGN METHODS, AND CFD MODELING FOR TURBOMACHINERY, VOL 7, PTS A-C, 2010, : 2245 - 2256
  • [4] Investigation into vibration characteristics of last stage blades in a steam turbine
    Zhao, Wen-Sheng
    Wang, Peng-Fei
    Li, Yan-Hui
    Liu, Mei-Qing
    Jiang, Jin
    Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science), 2016, 44 (08): : 8 - 12
  • [5] Restoration of Aircraft Gas Turbine Engine Titanium Compressor Blades by Laser Surfacing
    Gorunov, A. I.
    METALLURGIST, 2017, 61 (5-6) : 498 - 504
  • [6] Restoration of Aircraft Gas Turbine Engine Titanium Compressor Blades by Laser Surfacing
    A. I. Gorunov
    Metallurgist, 2017, 61 : 498 - 504
  • [7] Failure study of steam turbine Last-Stage rotor blades under a High-Speed wet steam environment
    Gao, Jiashun
    Xu, Zhilong
    Tang, Zhuolin
    Lei, Yu
    Sun, Wenbing
    Guo, Bicheng
    Zhao, Zhenye
    ENGINEERING FAILURE ANALYSIS, 2023, 154
  • [8] INFLUENCE OF A CYLINDRICAL EXHAUST HOOD INSTALLATION ON THE LAST STAGE ROTOR BLADES OF A LOW PRESSURE MODEL STEAM TURBINE
    Mueller, Fabian F.
    Schatz, Markus
    Vogt, Damian M.
    Aschenbruck, Jens
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2017, VOL 8, 2017,
  • [9] Flow around the rotor blade tips of steam turbine last stage
    Stastny, M
    Matas, R
    Safarik, P
    Jung, AR
    Mayer, JF
    Stetter, H
    THIRD EUROPEAN CONFERENCE ON TURBOMACHINERY - VOLS A AND B: FLUID DYNAMICS AND THERMODYNAMICS, 1999, 1999 (1A-1B): : 703 - 712
  • [10] Reconditioning of steam turbine blades and rotor disks
    Zhuchenko L.A.
    Kortenko V.V.
    Sakhnin Yu.A.
    Ermolaev V.V.
    Power Technology and Engineering, 2002, 36 (2) : 64 - 66
12345