METHODS FOR PREPARING SUPERALLOY ARTICLES AND RELA

专利名称：METHODS FOR PREPARING SUPERALLOY

ARTICLES AND RELATED ARTICLES

发明人：DETOR, Andrew Joseph,DIDOMIZIO,

Richard,HANLON, Timothy,SHEN,Chen,ZHOU, Ning

申请号：EP17178125.5申请日：20170627公开号：EP3263722A1公开日：20180103

专利附图：

摘要：A method for preparing an improved article including a nickel-based superalloy

is presented. The method includes heat-treating a workpiece 102 including a nickel-basedsuperalloy at a temperature above the gamma-prime solvus temperature of the nickel-based superalloy and cooling the heat-treated workpiece 104 with a cooling rate lessthan 50 degrees Fahrenheit/minute from the temperature above the gamma-primesolvus temperature of the nickel-based superalloy so as to obtain a cooled workpiece.The cooled workpiece includes a coprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein the gamma-prime phase of the coprecipitate has anaverage particle size less than 250 nanometers. An article having a minimum dimensiongreater than 6 inches is also presented. The article includes a material having acoprecipitate of a gamma-prime phase and a gamma-double-prime phase, wherein thegamma-prime phase of the coprecipitate has an average particle size less than 250nanometers.

申请人：General Electric Company

地址：1 River Road Schenectady, NY 12345 US

国籍：US

代理机构：Lee, Brenda

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