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Direct Observation Apparatus and method of Hot Crack in Coexistence Zone of Solid phase and Liquid phase
Direct Observation Apparatus and method of Hot Crack in Coexistence Zone of Solid phase and Liquid phase
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机译:固液相共存区热裂纹的直接观测装置及方法
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摘要
PURPOSE: An apparatus for directly observing hot crack in a zone where a solid state and a liquid state coexist, and a method thereof are provided to conveniently observe the generation of the hot crack. CONSTITUTION: A heating coil(104) heats one side of a test piece(103) fixed by a tension tester(100). A cooling gas nozzle(105) sprays cooling gas cooling the other side of the test piece. A camera(106) takes a photograph of a zone where a solid state and a liquid state of the test piece coexist in tensioning the test piece. An image processor(107) processes the photographed image by using an image processing program capable of tracing a position to derivate the transformed quantity and the transforming rate of the test piece.
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