Determination should be based upon metals common to aircraft construction, including
- ferrous metals
- iron—used to make steel
- steel—used with alloys: carbon, sulfur, silicon, phosphorous, nickel, and chromium
- nonferrous metals
- aluminum—copper, magnesium, manganese, and zinc
- copper—as an alloy, used as a base to create brass, bronze, and beryllium
- magnesium—as an alloy, combined with zinc, aluminum, thorium, zirconium, and manganese
- nickel—combined with copper to form Monel and with chromium, iron, and others to form Inconel
- titanium—alpha, alpha-beta, and beta alloys create compounds of various strengths
The student should also determine whether the used hardware or suspected unapproved parts (SUPS) were used.
ACS:
AM.I.E.K1
AM.I.E.K9
AM.I.E.K11
AM.I.E.R3
AM.I.E.S12
Process/Skill Questions:
- What are methods that can be used to determine if a metal is ferrous or nonferrous?
- What is an alloy?
- How does one determine the suitability of materials for aircraft repairs?