Abstract:
An austenitic alloy may generally comprise, in weight percentages based on total alloy weight: up to 0.2 carbon; up to 20 manganese; 0.1 to 1.0 silicon; 14.0 to 28.0 chromium; 15.0 to 38.0 nickel; 2.0 to 9.0 molybdenum; 0.1 to 3.0 copper; 0.08 to 0.9 nitrogen; 0.1 to 5.0 tungsten; 0.5 to 5.0 cobalt; up to 1.0 titanium; up to 0.05 boron; up to 0.05 phosphorous; up to 0.05 sulfur; iron; and incidental impurities.
Abstract:
An austenitic alloy may generally comprise, in weight percentages based on total alloy weight: up to 0.2 carbon; up to 20 manganese; 0.1 to 1.0 silicon; 14.0 to 28.0 chromium; 15.0 to 38.0 nickel; 2.0 to 9.0 molybdenum; 0.1 to 3.0 copper; 0.08 to 0.9 nitrogen; 0.1 to 5.0 tungsten; 0.5 to 5.0 cobalt; up to 1.0 titanium; up to 0.05 boron; up to 0.05 phosphorous; up to 0.05 sulfur; iron; and incidental impurities.
Abstract:
Una aleación austenítica generalmente puede comprender, en porcentajes en peso basados en el peso total de la aleación: hasta 0,2 carbono; hasta 20 manganeso; de 0,1 a 1,0 silicio; de 14,0 a 28,0 cromo; de 15,0 a 38,0 níquel; de 2,0 a 9,0 molibdeno; de 0,1 a 3,0 cobre; de 0,08 a 0,9 nitrógeno; de 0,1 a 5,0 tungsteno; de 0,5 a 5,0 cobalto; hasta 1,0 titanio; hasta 0,05 boro; hasta 0,05 fósforo; hasta 0,05 azufre; hierro e impurezas inevitables.
Abstract:
An austenitic alloy may generally comprise, in weight percentages based on total alloy weight: up to 0.2 carbon; up to 20 manganese; 0.1 to 1.0 silicon; 14.0 to 28.0 chromium; 15.0 to 38.0 nickel; 2.0 to 9.0 molybdenum; 0.1 to 3.0 copper; 0.08 to 0.9 nitrogen; 0.1 to 5.0 tungsten; 0.5 to 5.0 cobalt; up to 1.0 titanium; up to 0.05 boron; up to 0.05 phosphorous; up to 0.05 sulfur; iron; and incidental impurities.
Abstract:
Embodiments of the present invention provide methods of processing cobalt alloys including, in weight percent, from 26 to 30 chromium, from 5 to 7 molybdenum, and greater than 50 cobalt, the methods comprises cold working and aging the alloys such that after aging the cobalt alloys have a hardness of at least Rockwell C 50. Other embodiments provide methods of selectively cold working at least one portion of a cobalt alloy, and subsequently aging the alloy, such after aging, the selectively cold worked portions of the alloy have a higher hardness value then portions of the alloy that were not selectively cold worked. The present invention also discloses cobalt alloys, implants, and articles of manufacture made from cobalt alloys within the present invention.
Abstract translation:本发明的实施方案提供了处理钴合金的方法,其包括重量百分比为26至30铬,5至7种钼和大于50种钴,该方法包括冷加工和老化合金,使得在老化之后,钴 合金具有至少为Rockwell C 50的硬度。其他实施例提供选择性冷加工钴合金的至少一部分的方法,然后在老化之后老化合金,合金的选择性冷加工部分具有较高的硬度 然后是没有选择性冷加工的合金部分。 本发明还公开了在本发明中由钴合金制成的钴合金,植入物和制品。
Abstract:
An austenitic alloy may generally comprise, in weight percentages based on total alloy weight: up to 0.2 carbon; up to 20 manganese; 0.1 to 1.0 silicon; 14.0 to 28.0 chromium; 15.0 to 38.0 nickel; 2.0 to 9.0 molybdenum; 0.1 to 3.0 copper; 0.08 to 0.9 nitrogen; 0.1 to 5.0 tungsten; 0.5 to 5.0 cobalt; up to 1.0 titanium; up to 0.05 boron; up to 0.05 phosphorous; up to 0.05 sulfur; iron; and incidental impurities.
Abstract:
The invention comprises an implant (10) comprising a cobalt alloy, the cobalt alloy having a percent elongation of at least 10 percent, the implant (10) further comprising a wear surface (12) including at least a first portion (14) having a Knoop Hardness Number of at least 560, and a subsurface region (16) including at least a second portion (18) adjacent the first portion (14) and having a Knoop Hardness Number that is less than the Knoop Hardness Number of the first portion.
Abstract:
A cobalt-nickel-chromium-molybdenum alloy useful in surgical implant applications includes, in weight percent based on total alloy weight, at least 20 cobalt, 33.0 to 37.0 nickel, 19.0 to 21.0 chromium, 9.0 to 10.5 molybdenum, and less than 30 ppm nitrogen. Embodiments of the alloy lack significant levels of titanium nitride and mixed carbonitride inclusions. The alloy may be cold drawn to thin-gauge wire without damage to the die as may be caused by hard particle inclusions in certain conventional alloy formulations.