Cu precipitation-mediated formation of reverted austenite during ageing of a 15–5 PH stainless steel

Crystallography of Widmanstätten austenite in duplex stainless steel weld metal

Two kinds of austenite grow from d-ferrite during the cooling of the duplex stainless steel weld deposits studied here, Widmanstätten plates and allotriomorphs which precipitate at d–d grain boundaries. It is found using microtexture measurements that the preferred crystallographic orientation of the Widmanstätten austenite can be estimated using established theory if it is assumed that there i...

Enhanced bone formation on newly fabricated Cu-bearing stainless steel

313 ©2014 Society for Biomaterials

Effect of ageing heat treatment on corrosion behaviorof 17-4 PH stainless steel in 3.5% NaCl

The 17-4PH alloy is a martensitic stainless steel with 3–5 wt% Cu, strengthened by the precipitation hardening. Due to excellent mechanical properties, corrosion resistance and ease of heat treatment, this alloy has unique applications in nuclear power plants and marine constructions. In this paper, the influence of ageing heat treatment, solution annealing followed by ageing at 480, 550 and 62...

EVALUATION OF PRECIPITATION HARDENING HEAT TREATMENT OF PH 17-7 STAINLESS STEEL SPRING

In this paper, the influence of heat treatment on PH17-7 stainless steel spring was evaluated. Precipitation hardening phenomenon of  PH 17-7 steel was evaluated in three stages. First, the spring constant changes with time and temperature was evaluated. Second, the spring constant changes with respect to its original length at constant temperature and time with blocking (spring length aft...

Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnects