Effect of Aging Heat Treatment H950 and H1000 on Mechanical and Pitting Corrosion Properties of UNS S46500 Stainless Steel

Experimental validation of ball burnishing numerical simulation on ball-end milled martensitic stainless-steel considering friction and the initial surface topography

“…To extend the applicability of Amini et al model [3] to other ferrous materials (skipping one of the aforementioned FEM limitations [18]), a ball burnishing process on a UNS S46500 milled martensitic precipitation hardening stainless-steel has been simulated and validated. Although this material is industrially relevant due to its wide use in aerospace application [38], it has not previously been studied,. In addition, in order to evaluate different tribo-contact scenarios as well as their numerical conceptualization accuracy, ball burnishing experiments have been performed under two loading conditions, 270 N and 470 N. These two load levels entail two different friction coefficients and therefore, a different final surface and subsurface quality (reproduced by the 3D FEM model with accuracy).…”

Influence of Austenitization Parameters on the Precipitation Sequence and the Chemical Homogenization of Austenite in a High-Performance Fe–Ni–Cr–Al–Ti–Mo Stainless Maraging Steel

“…Indeed, microsegregations in Ni during ageing lead to the local reversion of martensite into austenite. [5,6] Still in the 1970s, stainless maraging steels designed with addition of Cr emerged. In the 1990/2000s, high-performance stainless maraging steels were developed to further improve both mechanical resistance and fracture toughness (for instance Custom 465 [7] and MLX17 [8,9] steels), using new combinations of hardening intermetallic phases (often a NiAl and Ni 3 Ti combined precipitation) and by controlling the fractions of retained and reverted austenites.…”