摘要
微合金铌对镀锡基板的组织和硬度有重要影响,即使痕量的铌也能影响金属再结晶,需要提高退火温度才能达到材料的硬度要求。与不含铌钢相比,含痕量铌镀锡基板在570℃时主要是纤维状组织,只有极少量的铁素体晶粒。600℃时,有30%~40%的组织发生再结晶;630℃时,基本完成再结晶过程,退火温度提高了约30℃。
Microalloyed Nb has an important influence on the microstructure and hardness of tinned substrate.Even trace Nb can affect the recrystallization of metals,and the annealing temperature needs to be increased to meet the hardness requirements of the material.Compared with Nb-free steel,the tin-plated substrate containing trace niobium is mainly fiber-like at 570℃.There are only a very small amount of ferrite grains.30%-40%of the microstructure are recrystallized at 600℃,and the recrystallization process is basically completed at 630℃.The annealing temperature is increased by about 30℃.
作者
王运起
WANG Yunqi(Manufacturing Management Department,Shanghai Meishan Iron&Steel Co.,Ltd.,Nanjing 210039,China)
出处
《热加工工艺》
北大核心
2022年第8期143-145,共3页
Hot Working Technology
关键词
痕量铌
镀锡基板
组织
trace nilbium
tin-plated substrate
microstructure