HSLA钢焊缝金属组织主要是由先共析铁素体、侧板条铁素体和针状铁素体组成,针状铁素体具有良好的韧性和强度配比,是HSLA钢焊缝金属最希望得到的组织.从合金元素、焊接参数和夹杂物三个方面对针状铁素体组织的形成进行阐述,以期为HSLA钢的使用及配套焊丝的开发等相关研究提供一定的借鉴.
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