scope:

About the Course

This courses covers the test methods that describe notched-bar impact testing of metallic materials by the Charpy (simple-beam) test and the Izod (cantilever-beam) test. The course covers the requirements for: test specimens, test procedures, test reports, test machines verifying Charpy impact machines, optional test specimen configurations, designation of test specimen orientation, and determining the percent of shear fracture on the surface of broken impact specimens.

In addition, information is provided on the significance of notched-bar impact testing, and methods of measuring the center of strike.

Learning Outcomes

By the end of this course you will be able to:

• Define precautions in operation of machine.

• Identify apparatus and related components used for notched-bar impact testing of metallic materials.

• Recognize test specimen requirements for both Charpy and Izod specimens.

• Recall test procedures, including Charpy and Izod test procedures.

• Recall information obtainable from impact tests.

• Identify reporting requirements for ASTM E23.

Reference Materials Included

ASTM E23