标准编号：ISO 12715:2014
中文名称：无损检验 超声波检测 接触式探头声束特性描述用参考模块和试验程序
英文名称：Non-destructive testing — Ultrasonic testing — Reference blocks and test procedures for the characterization of contact probe sound beams
发布日期：2014-06
标准范围
This International Standard introduces two metal reference blocks, the hemicylindrical-stepped (HS)block and the side-drilled-hole (SDH) block. This International Standard establishes procedures formeasuring the sound beam profiles generated by probes in contact with the test object. The probesinclude straight-beam, angle-beam (refracted compressional and refracted shear wave), focused beam,and dual-element probes. The side dimension of the probe has to be no greater than 25 mm.The methodology of this International Standard provides guidelines for probes to be used for differentmetals including forged or rolled steel, aluminium, or titanium alloy products. The frequency range ofthe probes used in this International Standard extends from 1 MHz to 15 MHz, where 1 MHz to 5 MHzis best suited for steels and 5 MHz to 15 MHz is best for fine grain structured alloys such as aluminiumproducts.If this International Standard is to be used for materials other than steels, users should be aware of thefact that the wave velocities in these materials can be different from that of steels and the angle-beamprobes are normally designed based on the steel applications. Snell’s law of refraction is described inthis International Standard so that correct angles of refraction in other homogeneous and fine-grainedmaterials can be calculated. This International Standard applies to angle-beam probes of all practicalangles (0° to 70°) and to focused and dual-element probes. This International Standard does not addressthe use of surface (Rayleigh) wave probes.This International Standard does not address the estimation of equivalent defect sizes which requiresreference blocks with flat-bottomed holes. This International Standard establishes no acceptancecriteria, but does establish the technical basis for criteria that can be defined by users.
立即下载标准文件