Deformation Failure: Excessive elastic deformation; plastic deformation.

Fracture Failure: Brittle fracture failure; plastic fracture failure.

Fatigue Failure: high-cycle fatigue failure; low cycle fatigue failure; thermal fatigue failure.

Environment Induced Failure: several stress corrosion failure; hydrogen induced cracking failure; corrosion fatigue failure.

Corrosion Failure: uniform corrosion or general corrosion failure; bimetallic corrosion; crevice corrosion failure; pitting failure; intergranular corrosion failure; selective leaching or demetalization failure; eroding corrosion failure; microbe induced corrosion failure; stress corrosion cracking failure.

Abrasion Failure: abrasive wearing failure; erosive wearing failure; adhesive wearing failure; fretting wearing failure; cavitation failure; droplets impacting failure; rolling contact fatigue failure.

Crack Failure: soldering cracks, such as soldering heat crack, cold crack, crystallizing crack, liquefied crack, multilateral crack, delayed crack, reheat crack, lamellar tearing; casting cracks, such as thermal cracking casting, casting heat cracks ; forging rolling crack, such as forging burnt crack, forging cold cracking, forging fold crack, copper brittleness crack , hot brittle crack; heat treating crack, such as quenching cracks, hardening flow, overheated crack, temper brittle crack, grinding crack.