Powder metallurgy (PM) Ni-based superalloys are widely used for aeroengine turbine disc
applications due to their excellent mechanical properties and good corrosion resistance at …

Characterizing the microstructure and deformation mechanism associated with the
performances and properties of metallic materials is of great importance in understanding …

疲劳是机械结构最普遍的失效模式之一. 自1854 年第一次提出“Fatigue”(疲劳) 概念以来,
相关研究已有160 余年的历程, 逐步形成了以疲劳研究为基础的机械结构强度理论与技术 …

The mechanistic basis of microstructurally short crack paths and growth rates is investigated
in Ni-based superalloy single crystals using Crystal Plasticity (CP) and eXtended Finite …

SiC p/Al matrix composite (SiC p/AMCs) has been widely used in aerospace field of
structural frames, but it is difficult to realize the lightweight connection of complex structural …

This study provides direct observation of the crack closure mechanism of a naturally
occurring, tortuous, 3D microstructurally small fatigue crack (SFC) in additively manufactured …

Nickel (Ni)-based superalloys are used for safety-critical components in the aerospace
industry because of their high strength at elevated temperatures. These materials are …

The qualification of engineering materials requires extensive testing of the time-dependent
performance of the material, namely the fatigue behavior. Model-based approaches for …

During cyclic loading, localization of intragranular deformation due to crystallographic slip
acts as a precursor for crack initiation, often at coherent twin boundaries. A suite of high …

The in-situ synthesized Ti-52 at% Al alloy was additively manufactured for the first time by
electron beam freeform fabrication (EBF 3) with pure Ti and Al wires. The chemical …