The heating temperature of pretreatment hasn't much influence on the properties for acicularstructure, but it is detrimental to the properties for granular structure.
予处理温度对针状组织的性能基本无影响，但升高予处理温度对颗粒状组织的性能有害。
2
Mainly its metallographic structure consists of acicular ferrite and martensite.
钢的组织主要由针状铁素体和马氏体两相组成。
3
In the process of wollastonite fining, we can forge and then cool it to protect its crystal structure which is short acicular fiber.