Directionally solidified gas turbine blades are wildly used in land-based industrial gas
turbines for power generation. During long-term service, the harsh service environment …

For the past few decades, the gas turbines have been operated at elevated temperatures to
have the advantage of achieving higher and higher power output and engine efficiency. The …

The effect of thermal exposure on microstructure and creep properties of a fourth-generation
nickel-based single crystal superalloy was investigated. The thermal exposure of samples …

Microstructure evolution during long-term thermal exposure and stress rupture in Waspaloy
was investigated in detail. During thermal and stress exposure, γ′ phase and grain …

Abstract Service lives of turbine blades are closely related to microstructural degradation
introduced by normal and overheating service exposures. However, comparative …

The effect of 1000h thermal exposure on the microstructural instability and mechanical
properties degradation of IN738C at 850° C were investigated by means of TEM, SEM and …

High pressure temperature (HPT) turbine blade is the most important component of the gas
turbine and failures in this turbine blade can have dramatic effect on the safety and …

The aim of this paper was to develop a one-step in situ method to synthesize the TiN
reinforced Al metallic matrix composite coatings on Ti6Al4V alloy. In this method, the Al …

In the present study, the failure of a fifth stage blade of a gas turbine after 500 equivalent
operation hours is investigated. After hot gas path inspection, it was found that an airfoil of a …

The failure of first-stage blades in a 25 MW gas turbine, made of CM88Y nickel-based
superalloy were studied by metallurgical approaches. The blades were examined visually …