High hardness, corrosion resistant PM Nitinol implements and components

摘要

A manufacturing method for making components includes: providing at least one of a prealloyed powder of a composition of Ni—Ti in the range of Ni-36Ti to Ni-45Ti or a mix of powders that forms a composition of Ni—Ti in the range of Ni-36Ti to Ni-45Ti; loading at least one of the prealloyed powder and the mix powders into a container; hot isostatically pressing (HIP) the container to full density to obtain a compact; rolling the compact in a mill with multiple passes to produce a sheet or other mill form material; and cutting blanks for the components from the sheet material to produce a component blank.

主权项

1. A manufacturing method for making components, comprising:
providing at least one of a prealloyed powder of a composition of Ni—Ti in the range of Ni-36Ti to Ni-45Ti or a mix of powders that forms a composition of Ni—Ti in the range of Ni-36Ti to Ni-45Ti; loading at least one of the prealloyed powder or the mix of powders into a container; hot isostatically pressing (HIP) the container to full density to obtain a compact; rolling the compact in a mill above 1200° F. to avoid cracking with multiple passes to produce a sheet or other mill form material; cutting blanks for the components from the sheet material to produce a component blank, heat treating the component blank to achieve a low hardness HRC(27-35) for optimal finishing operations, conducting finishing metal forming and removal or grinding operations on the component blank in the low hardness condition; and heat treating a finished component blank to high hardness HRC(45-65) for fine finishing for edge retention and/or durability.