Method for evaluating embrittlement of amorphous alloy ribbon and test device for evaluating embrittlement of amorphous alloy ribbon
AssigneeProterial, Ltd.
InventorsNakao Moritsugu, Hiroshi Takashima
Life of this patent
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Abstract
A new method for evaluating embrittlement of an amorphous alloy ribbon is provided. The method includes: pressing a pressurization member from one side to a plurality of positions of an amorphous alloy ribbon; scattering, in the amorphous alloy ribbon, pressurization portions where the pressurization member is pressed to form indentation; and evaluating embrittlement by the number or distribution of pressurization portions where cracks have occurred.
Claims19
A method for evaluating embrittlement of an amorphous alloy ribbon, the method comprising:
- pressing a pressurization member from one side to a plurality of positions of an amorphous alloy ribbon, wherein an elastic member is placed on a side of the amorphous alloy ribbon opposite to a surface on which the pressurization member is pressed, so as not to hinder a deformation by the pressurization member;
- scattering, in the amorphous alloy ribbon, pressurization portions where the pressurization member is pressed to form indentation;
- and
- evaluating embrittlement by the number or distribution of pressurization portions where cracks have occurred.
A test device for evaluating embrittlement of an amorphous alloy ribbon, the test device including:
- a measurement table including a plane on which an amorphous alloy ribbon is placed,
- an elastic member placed on a side of the amorphous alloy ribbon opposite to a surface on which a pressurization member is pressed, so as not to hinder a deformation by the pressurization member, and
- a pressurization device for pressing the pressurization member from one side to a plurality of positions of the amorphous alloy ribbon and scattering, in the amorphous alloy ribbon, pressurization portions where the pressurization member is pressed to form indentation.
Dependencies are inferred from the claim text.