A directionally solidified Ni-based superalloy DS200 is investigated under low (750° C) and
high temperature (900° C) transverse creep. In-situ creep tests with strain measurements are …

High temperature aircraft engines components made from single crystal nickel-based
superalloys typically have homogenous γ/γ′ microstructure after conventional solution and …

In this study, thermal cycling creep tests under (950° C/15 min+ 1100° C/1 min)/100 MPa
were performed to simulate the overheating service condition of a directionally solidified …

Nonisothermal service conditions are one of the main abnormal failure modes of aero-
engines. The creep tests of a Ni-based directionally solidified superalloy under …

Microstructural stability at elevated temperatures is one of the main concerns for the service
reliability of aero-engine turbine blades. Thermal exposure, as an important approach to …

Cracking is the precursor of the final fracture for most engineering materials, often affected
by various microstructural characteristics including grain orientation, boundary, precipitation …

The microstructural degradation of the substrate and coating restricts service lives of gas
turbine blades. In this study, microstructure evolution of DS Ni-based superalloy, which were …

Nickel base superalloys are widely used to manufacture turbine blades, and overheating
poses a serious threat to the safe service of turbine blades. In this study, a second …

Surface hardening procedures such as mechanical shot peening and deep cold rolling
introduce extensive surface cold work and compressive residual stress. While both methods …

Directionally solidified (DS) superalloys consist of coarse columnar grains with< 001>
preferred orientation parallel to the maximum stress axis; but, grain orientations in the …