Nickel-chromium alloy and method of making the same
AssigneeAmetek, Inc.
InventorsRyan A. Smith, Muktesh Paliwal, Kerry B. Daley
Life of this patent
Estimating the term…
Abstract
A nickel and chromium alloy having a combined wt. % of nickel and chromium of at least 97 wt. %, wherein the chromium accounts for 33 to 50 wt. % of the alloy. The alloy may be provided in strip form and has adequate ductility for the manufacture of various products, such as sheaths for flux cored welding electrodes. A method of making the alloy strip includes forming a powder charge that is 97 to 100 wt. % of nickel and chromium combined and the chromium accounts for 33 to 50 wt. % of the charge, roll compacting the powder charge to form a green strip, sintering the green strip to form a sintered strip, and cold rolling and annealing the sintered strip to form the alloy strip.
Claims20
An alloy comprising nickel and chromium having a combined wt. % of nickel and chromium of at least 97 wt. %, wherein the chromium accounts for 33 to 50 wt. % of the alloy, wherein the alloy is provided in strip form, and
- wherein the strip has a tensile elongation as determined using ASTM E8 of at least 30%.
An alloy comprising nickel and chromium having a combined wt. % of nickel and chromium of at least 99.8 wt. %, wherein the chromium accounts for 33 to 50 wt. % of the alloy, wherein the alloy is provided in strip form, and
- wherein the strip has a tensile elongation as determined using ASTM E8 of at least 30%.
A method of making an alloy strip comprising:
- forming a powder charge, wherein the powder charge comprises 97 to 100 wt. % of nickel and chromium combined and the chromium accounts for 33 to 50 wt. % of the charge;
- roll compacting the powder charge to form a green strip;
- sintering the green strip to form a sintered strip;
- and
- cold rolling and annealing the sintered strip to form the alloy strip.
A method of making an alloy strip comprising:
- forming a powder charge, wherein the powder charge comprises at least 99.8 wt. % of nickel and chromium combined and the chromium accounts for 33 to 50 wt. % of the charge;
- roll compacting the powder charge to form a green strip;
- sintering the green strip to form a sintered strip;
- and
- cold rolling and annealing the sintered strip to form the alloy strip.
Dependencies are inferred from the claim text.