Ultrasonic testing of ferritic or martensitic steel （铁素体和马氏体钢的超声波测试）.pdf

Non-destructive testing of steel forgings -Part 3: Ultrasonic testing of ferritic or martensitic steel forgings (BS EN 10228-3:1998) 1 Scope This part of EN 10228 describes the techniques to be used for the manual, pulse-echo, ultrasonic testing of forgings manufactured from ferritic and martensitic steel. Mechanized scanning techniques, such as immersion testing, may be used but should be agreed between the purchaser and supplier (see clause 4). This part of EN 10228 applies to four types of forgings, classified according to their shape and method of production. Types 1, 2 and 3 are essentially simple shapes. Type 4 covers complex shapes. This part of EN 10228 does not apply to: - closed die forgings; - turbine rotor and generator forgings. Ultrasonic testing of austenitic and austenitic-ferritic stainless steel forgings is the subject of Part 4 of this European Standard. 2 Normative references This part of EN 10228 incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this part of EN 10228 only when incorporated in by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 473, Qualification and certification of NDT personnel. prEN 12668-1, Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 1: Instruments. prEN 12668-2, Non-destructive testing - Characterization and verification of ultrasoni