Ultrasonic phased arrays for nondestructive inspection of forgings

Journal Article · Tue Jun 01 00:00:00 EDT 1993 · Materials Evaluation; (United States)

OSTI ID:6413629

Wuestenberg, H; Rotter, B ^[1]; Klanke, H P ^[2]; Harbecke, D ^[3]

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1. Bundesanstalt fuer Materialforschung undpruefung, Berlin (Germany)
2. Vereinigte Schmiedegesellschaft, Osnabarueck (Germany)
3. Krautkraemer, Huerth (Germany)

Ultrasonic examinations on large forgings like rotor shafts for turbines or components for nuclear reactors are carried out at various manufacturing stages and during in-service inspections. During the manufacture, most of the inspections are carried out manually. Special in-service conditions, such as those at nuclear pressure vessels, have resulted in the development of mechanized scanning equipment. Ultrasonic probes have improved, and well-adapted sound fields and pulse shapes and based on special imaging procedures for the representation of the reportable reflectors have been applied. Since the geometry of many forgings requires the use of a multitude of angles for the inspections in-service and during manufacture, phased-array probes can be used successfully. The main advantages of the phased-array concept, e.g. the generation of a multitude of angles with the typical increase of redundancy in detection and quantitative evaluation and the possibility to produce pictures of defect situations, will be described in this contribution.

• OSTI ID: 6413629
• Journal Information: Materials Evaluation; (United States), Journal Name: Materials Evaluation; (United States) Vol. 51:6; ISSN MAEVAD; ISSN 0025-5327
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
ACOUSTIC TESTING
FABRICATION
FORGING
IN-SERVICE INSPECTION
INSPECTION
MANUFACTURING
MATERIALS TESTING
MATERIALS WORKING
NONDESTRUCTIVE TESTING
PROBES
REACTOR COMPONENTS
TECHNOLOGY ASSESSMENT
TESTING
ULTRASONIC TESTING
ULTRASONOGRAPHY