Improved very high cycle bending fatigue behavior of Ni microbeams with Au coatings

A computational and experimental comparison on the nucleation of fatigue cracks in statistical volume elements

“…More recently, new fabrication processes have innovated on metallic MEMS, which can have superior mechanical properties [2] (e.g., better fracture toughness, lower degradation at high temperature). Thus, there is an increasing need to study of the mechanical reliability of microscopic metallic components, among which fatigue failure is a leading concern [3][4][5][6][7][8][9][10][11].…”

The formation of discontinuous gradient regimes during crack initiation in high strength steels under very high cycle fatigue

“…Regardless the large variability in the loading history of materials in real engineering practice, researchers categorized laboratory fatigue tests into low cycle fatigue, high cycle fatigue (HCF), and very high cycle fatigue (VHCF) [1][2][3][4][5][6][7][8][9]. The latter is particularly referred to fatigue failure beyond 10 7 loading cycles [10][11][12][13]. VHCF becomes a new regime of fatigue research for the everlasting demand of faster speed and longer duration.…”

Ultra-high cycle fatigue behavior of a novel 1.9 GPa grade super-high-strength maraging stainless steel

“…Fatigue is often divided into three stage, i.e. crack initiation, crack propagation and final rupture [32][33][34][35] . Before crack initiation, the specimen first undergoes localized plastic deformation and reaches its limit, resulting in…”