استاندارد ASTM E709

توضیح کامل تست ذرات مغناطیسی

MT - Magnetic Particles

یکی از تست های غیر مخرب

41 صفحه - به زبان انگلیسی

Standard Guide for
Magnetic Particle Testing

Scope
1.1 This guide describes techniques for both dry and wet
magnetic particle testing, a nondestructive method for detecting cracks and other discontinuities at or near the surface in
ferromagnetic materials. Magnetic particle testing may be applied to raw material, semifinished material (billets, blooms,
castings, and forgings), finished material and welds, regardless of heat treatment or lack thereof. It is useful for preventive
maintenance testing.
1.1.1 This guide is intended as a reference to aid in the preparation of specifications/standards, procedures and techniques.
1.2 This guide is also a reference that may be used as follows:
1.2.1 To establish a means by which magnetic particle testing, procedures recommended or required by individual
organizations, can be reviewed to evaluate their applicability and completeness.
1.2.2 To aid in the organization of the facilities andpersonnel concerned in magnetic particle testing.
1.2.3 To aid in the preparation of procedures dealing with the examination of materials and parts. This guide describes magnetic particle testing techniques that are recommended for a great variety of sizes and shapes of ferromagnetic materials
and widely varying examination requirements. Since there are
many acceptable differences in both procedure and technique, the explicit requirements should be covered by a written
procedure.

...