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1.发明授权公开(公告)号：US11807929B2
公开(公告)日：2023-11-07
申请号：US16794438
申请日：2020-02-19
发明人： Gordon Tajiri , Emily Marie Phelps , Joseph Richard Schmitt , Lakshmi Krishnan , Guru Venkata Dattu Jonnalagadda , Gary Stephen Shipley , Ashley Rose Dvorak
CPC分类号： C22F1/10 , C22C19/03 , C25D3/12 , C22C2200/02
摘要： Nickel-cobalt materials, methods of forming a nickel-cobalt material, and methods of thermally stabilizing a nickel-cobalt material are provided. A nickel-cobalt material may include a metal matrix composite with amorphous regions and crystalline regions substantially encompassed by a nanocrystalline grain structure with a grain size distribution of about 50 nanometers to about 800 nanometers, and the nanocrystalline grain structure may include widespread intragranular twinning. The metal matrix composite may have a chemical makeup that includes nickel, cobalt, and a dopant such as phosphorus and/or boron. A nickel-cobalt material may be heat treated within a first temperature zone below the onset temperature for grain growth and then within a second temperature zone above the onset temperature for grain growth in the material. Chemical composition and heat treatment may yield a thermally stabilized nickel-cobalt material.
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2.发明申请公开(公告)号：US20200291508A1
公开(公告)日：2020-09-17
申请号：US16794438
申请日：2020-02-19
发明人： Gordon Tajiri , Emily Marie Phelps , Joseph Richard Schmitt , Lakshmi Krishnan , Guru Venkata Dattu Jonnalagadda , Gary Stephen Shipley , Ashley Rose Dvorak
摘要： Nickel-cobalt materials, methods of forming a nickel-cobalt material, and methods of thermally stabilizing a nickel-cobalt material are provided. A nickel-cobalt material may include a metal matrix composite with amorphous regions and crystalline regions substantially encompassed by a nanocrystalline grain structure with a grain size distribution of about 50 nanometers to about 800 nanometers, and the nanocrystalline grain structure may include widespread intragranular twinning. The metal matrix composite may have a chemical makeup that includes nickel, cobalt, and a dopant such as phosphorus and/or boron. A nickel-cobalt material may be heat treated within a first temperature zone below the onset temperature for grain growth and then within a second temperature zone above the onset temperature for grain growth in the material. Chemical composition and heat treatment may yield a thermally stabilized nickel-cobalt material.
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