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ENTC 207 Exam II review Test Questions Exam Prep Questions And Answers (
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ENTC 207 Exam II review Test Questions Exam Prep Questions And Answers (202472025) How does paint protect against corrosion? - ✔✔Prevents oxygen from touching the metal, acts like a coat What environments affect corrosion? - ✔✔pH, Temperature, velocity, concentration, inhibitors, cleaning, aeration, gases, acids, bases, salts, & solvents opera ting conditions affect corrosion: Temperature - ✔✔Increase rate of reaction operating conditions affect corrosion: Velocity - ✔✔veolocity of a corrodent over a metal surface affects corrosion rate operating conditions affect corrosion: Impurities - ✔✔Abrasive impurities, (increase corrosion). Chemical impurities (organic solvent pitting corrosion) operating conditions affect corrosion: Aeration - ✔✔none, increased, or decreased corrosion; introduci ng oxygen into a reaction What microstructure is produced by hardening 4340 steel? - ✔✔Martensite That phases are present after 52100 steel has been raised above the Ac3, soaked for the appropriate time, then oil quenched? - ✔✔Austenite & cementite A we lded steel structure is raised to 1100F and held for 1 hour per inch of thickness What probably is being done to it? - ✔✔Stress relieving (Widely used Tempering) What is thd result of heating a 1020 steel 50F above the Ac3, soaking for the appropriate tim e, then furnace cooling? - ✔✔MartensiteThe benefits of buying summaries with Stuvia:
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