Damage causes and failure analysis of a steam turbine blade made of martensitic stainless steel after 72,000 h of working

A Rivaz, SHM Anijdan, M Moazami-Goudarzi… - Engineering Failure …, 2022 - Elsevier
The harsh operating environment, and the extreme working condition, of the steam turbine
blades have led to the use of alloys with special characteristics. Of these properties are high …

Failure analysis and damage causes of a steam turbine blade of 410 martensitic stainless steel after 165,000 h of working

A Rivaz, SHM Anijdan, M Moazami-Goudarzi - Engineering Failure …, 2020 - Elsevier
Due to the special working environment of steam turbine blades, such as high temperature
and cyclic stresses, they are routinely under heavy damage conditions. Of the most …

Numerical investigations of crack initiation in impulse steam turbine rotors subject to thermo-mechanical fatigue

M Banaszkiewicz - Applied Thermal Engineering, 2018 - Elsevier
The study presents the analysis of non-stationary stresses and fatigue cracking in impulse
steam turbine rotors. Field experience with cracking of rotors is reviewed, and the most …

Damage evaluation and life assessment of steam turbine blades

DM Graciano, JA Rodríguez, G Urquiza… - Theoretical and Applied …, 2023 - Elsevier
Steam turbines in their last stages, L-0 stage, generate approximately 12% of the total power
produced by thermoelectric plants. These steam turbines blades present centrifugal loads …

Vibration response of steam turbine healthy and cracked blade under the stress stiffening and spin softening effects

RK Bhamu, A Shukla, SC Sharma… - Proceedings of the …, 2022 - journals.sagepub.com
In the present paper, vibration responses of the healthy and cracked blade under the
influence of stress-stiffening and spin-softening have been studied. The three-dimensional …

Diagnostic and failure analysis in blades of a 300 MW steam turbine

JA Segura, L Castro, I Rosales, JA Rodriguez… - Engineering Failure …, 2017 - Elsevier
A steam turbine from a thermoelectric central was put into maintenance due to a forced
outage for high vibrations. Visual inspection of the steam turbine of 300 MW showed blades …

Optimization of operating conditions for steam turbine using an artificial neural network inverse

YE Hamzaoui, JA Rodríguez, JA Hernández… - Applied Thermal …, 2015 - Elsevier
The useful life (UL) of the failure assessment in blades of steam turbines is optimized using
the artificial intelligence. The objective of this paper is to develop an integrated approach …

Estimation method of relative slip in fretting fatigue contact by Digital Image Correlation

Y Su, SS Rui, QN Han, ZH Shang, LS Niu, H Li… - Metals, 2022 - mdpi.com
An experimental method that can quantify relative slip was developed using digital image
correlation (DIC) in order to evaluate the sliding portion. The bridge-type test setup was …

Failure analysis of AISI 410 stainless-steel piston rod in spillway floodgate

DC Moreira, HC Furtado, JS Buarque… - Engineering Failure …, 2019 - Elsevier
We investigate the causes of failure of a piston rod of a hydraulic cylinder, which moves a
spillway floodgate of a hydroelectric power plant, after 30 years of service. The fractured …

[PDF][PDF] 地热流体的腐蚀与结垢控制现状

刘明言 - 新能源进展, 2015 - xnyjz.giec.ac.cn
在地热发电或直接利用过程中, 与地热流体(液体或蒸汽) 接触的设备, 管道或管件存在着腐蚀和
结垢现象, 往往成为地热开发利用的技术瓶颈. 因此, 开展地热流体的腐蚀与结垢控制技术研究至 …