Standard Test Method for Evaluating Hygrothermal Corrosion Resistance of Permanent Magnet Alloys

Importancia y uso:

5.1 This test method provides a controlled corrosive environment which can be utilized to produce relative corrosion resistance information for sintered permanent magnets.

5.2 Although prediction of performance in natural environments has seldom been statistically correlated with corrosion test results, sufficient empirical results are available to support the usefulness of this test in quantifying relative resistance to corrosion from moisture and heat.

5.3 The reproducibility of results in this test method is dependent on the type, size, and shape of specimens tested, and the control of the operating variables. In any testing program, sufficient replicates should be included to establish confidence limits. Replicates may be run simultaneously, in subsequent test runs, or in duplicate test chambers.

5.4 When multiple test chambers and operators are utilized, efforts shall be made to perform a suitable repeatability and reproducibility study for the equipment, operators, and test method.

Subcomité:

A06.01

Volúmen:

03.07

Número ICS:

29.030 (Magnetic materials)

Palabras clave:

autoclave; BCT; bulk corrosion test; corrosion resistance; hygrothermal; permanent magnet;