The precipitation hardening processes include （） heat treatment and （） heat treatment.
举一反三
- 智慧职教: ______ cannot be hardened by heat treatment since they contain no hardening element.
- In which heat treatment process, the specimen should be cooled in water or oil A: Tempering B: Annealing C: Quenching D: Case hardening
- The brazing weld need annealing heat treatment so that it is easily machined.。（ ）
- The basic treatment of diabetes is to clear heat and moisten dryness, nourish Yin and produce body fluid.
- To obtain an steel with fine pearlite we perform the commercial heat treatment known as total annealing