It's improve or eliminate conchoidal and raise mechanica behavior fracture, if introduce high temperture diffuse annealing and heat treatment. 采用高温扩散退火及随后的热处理可改善或消除贝壳状断口,并可提高机械性能。
Conchoidal \Con*choid"al\, a. [Cf. F. concho["i]dal.] (Min.) Having elevations or depressions in form like one half of a bivalve shell; -- applied principally to a surface produced by fracture.