Abstract: The present invention provides a galvanized steel sheet including: a steel sheet; and a galvanizing layer provided on a surface of the steel sheet; wherein the galvanizing layer includes an amorphous coating layer having an inorganic oxoacid salt and metallic oxide on a surface layer of the galvanizing layer; the galvanizing layer includes a ? phase and a ?1 phase; the galvanizing layer includes, by mass, 8 to 13% of Fe; Zn in the metallic oxide exists up to an outermost surface layer of the amorphous layer; and an X-ray diffraction intensity ratio I, which is obtained by dividing an X-ray diffraction intensity of the ? phase at d=0.126, after removing background intensity, by an X-ray diffraction intensity of the ?1 phase at d=0.126, after removing background intensity, is 0.06 to 0.35.

Abstract: The present invention provides a galvanized steel sheet including: a steel sheet; and a galvanizing layer provided on a surface of the steel sheet; wherein the galvanizing layer includes an amorphous coating layer having an inorganic oxoacid salt and metallic oxide on a surface layer of the galvanizing layer; the galvanizing layer includes a ? phase and a ?1 phase; the galvanizing layer includes, by mass, 8 to 13% of Fe; Zn in the metallic oxide exists up to an outermost surface layer of the amorphous layer; and an X-ray diffraction intensity ratio I, which is obtained by dividing an X-ray diffraction intensity of the ? phase at d=0.126, after removing background intensity, by an X-ray diffraction intensity of the ?1 phase at d=0.126, after removing background intensity, is 0.06 to 0.35.

Abstract: An ultrasonic inspection apparatus is provided in which the size of the apparatus can be made compact by using laser light, the degradation and deformation of the inspected object is prevented, and a broad range of inspections can be carried out. An ultrasonic inspection apparatus (1) is provided with a laser apparatus (5) that irradiates laser light and a volumetric inspection ultrasonic wave transmitter (17) having a transmitting diaphragm (39) that is irradiated by the laser light emitted by the laser apparatus (5) and that generates ultrasonic waves (C); and the ultrasonic inspection apparatus (1) carries out volumetric inspections by irradiating the ultrasonic waves (C) that are generated by the transmitting diaphragm (39) of the ultrasonic wave transmitting portion (17) to the inspected object.

Abstract: An ultrasonic inspection apparatus is provided in which the size of the apparatus can be made compact by using laser light, the degradation and deformation of the inspected object is prevented, and a broad range of inspections can be carried out. An ultrasonic inspection apparatus (1) is provided with a laser apparatus (5) that irradiates laser light and a volumetric inspection ultrasonic wave transmitter (17) having a transmitting diaphragm (39) that is irradiated by the laser light emitted by the laser apparatus (5) and that generates ultrasonic waves (C); and the ultrasonic inspection apparatus (1) carries out volumetric inspections by irradiating the ultrasonic waves (C) that are generated by the transmitting diaphragm (39) of the ultrasonic wave transmitting portion (17) to the inspected object.