06-07-2017 дата публикации
Номер: US20170192392A1
Принадлежит:
An ornament includes a sintered body, in which Fe, Cr, Ni, Si, and C are contained, and when one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group, and having a higher group number in the periodic table than that of the first element or having the same group number as that of the first element and a higher period number than that of the first element is defined as a second element, the first element is contained in a proportion of 0.01 mass % or more and 0.5 mass % or less, and the second element is contained in a proportion of 0.01 mass % or more and 0.5 mass % or less. 1. An ornament , comprising a sintered body , wherein in the sintered body ,Fe is contained as a major component,Cr is contained in a proportion of 15 mass % or more and 26 mass % or less,Ni is contained in a proportion of 7 mass % or more and 22 mass % or less,Si is contained in a proportion of 0.3 mass % or more and 1.2 mass % or less,C is contained in a proportion of 0.005 mass % or more and 0.3 mass % or less, andwhen one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected from the group consisting of Ti, V, Y, Zr, Nb, Hf, and Ta, and having a higher group number in the periodic table than that of the first element or having the same group number in the periodic table as that of the first element and a higher period number in the periodic table than that of the first element is defined as a second element,the first element is contained in a proportion of 0.01 mass % or more and 0.5 mass % or less, andthe second element is contained in a proportion of 0.01 mass % or more and 0.5 mass % or less, and{'b': 1', '1', '2', '2', '2', '1', '2, 'in a cross section of a surface layer with a thickness of 200 μm from the surface, when the area ratio of a first region D in which Fe is contained as a major component is represented by P ...
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