专利类型:  发明专利
申请号:  US201313908304
申请日期:  2013-06-03
公开号:  US9440286B2
公开日期:  2016-09-13
申请人:  WOJCIK C CRAIG
发明人:  WOJCIK C CRAIG
地址:  
摘要:  Processes for producing a nickel-titanium alloy are disclosed. The processes are characterized by the production of nickel-titanium alloy articles having improved microstructure. A pre-alloyed nickel-titanium alloy is melted and atomized to form molten nickel-titanium alloy particles. The molten nickel-titanium alloy particles are cooled to form nickel-titanium alloy powder. The nickel-titanium alloy powder is consolidated to form a fully-densified nickel-titanium alloy preform that is hot worked to form a nickel-titanium alloy article. Any second phases present in the nickel-titanium alloy article have a mean size of less than 10 micrometers measured according to ASTM E1245-03 (2008) or an equivalent method.
主权项:  A nickel-titanium alloy article comprising: 50.0 to 60.0 weight percent nickel based on the total weight of the article; and balance titanium and residual elements; wherein the residual elements comprise greater than 300 ppm oxygen; and wherein oxide inclusions and carbide inclusions present in the nickel-titanium alloy article have a mean size of less than 7.5 micrometers measured according to ASTM E1245-03 (2008) or an equivalent method.
专利分类号:  C22F1/10;B22F3/02;C22C1/04;B22F3/24;C22C19/03;C22F1/00;C22C14/00;B22F9/08;C22C30/00;B22F1/00;C22C19/00
专利状态:  有效专利
代理人:  
代理机构:  K&L Gates LLP
国家及地区:  
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