PEC 材料工程英语证书考试-材料试验词汇A Adherence—The extent to which a coating bonds to a substrate. Adherence Index--Measure of the Adherence of porcelain enamel and ceramic coatings to sheet metal. Alpha Rockwell Hardness—Index of the resistance of a plastic to surface penetration by a specified indenter under specified load applied with a Rockwell Hardness tester. Higher values indicate higher indentation Hardness. Axial Strain—The Strain in the direction that the load is applied, or on the same axis as the applied load. Analogue board—A machine circuit board, which converts analogue signals into digital signal. Anchor Pin—A steel pin that connects a grip or jig to an eye end Auto Return—Auto Return, when set to on, causes the crosshead to return automatically to its Zero point at the end of the test. B Bend Test—Method for measuring Ductility of certain materials. There are no standardized terms for reporting bend test results for broad classes of materials; rather, terms associated with bend tests apply to specific forms or types of materials. For example, materials specifications sometimes require that a specimen be bent to a specified inside diameter (ASTM A-360, steel products). A bend test for Ductility of welds is given in ASTM E-190. Results of tests of fiberboard are reported by a description of the failure or photographs. Bending Strength—Alternate term for Flexural Strength. It is most commonly used to describe flexure properties of cast iron and wood products. Bond Strength—Stress (tensile load divided by area of bond) required to rupture a bond formed by an adhesive between two metal blocks. Break Elongation—The Elongation of the specimen to the break point. Breaking Load—Load...
