CAJ | 학술논문

研究了成分互补熔体温度处理工艺对Al-20Si合金组织的影响规律.研究表明,该工艺能够对高硅铝合金的初生Si相产生明显的变质效果,经成分互补熔体温度处理工艺处理后,初生Si的晶粒在100 min内尺寸可稳定在36 μm左右,这表明对高硅铝合金的变质效果具有长效性,是一种简单实用的高硅铝合金变质处理工艺.
연구료성분호보용체온도처리공예대Al-20Si합금조직적영향규률.연구표명,해공예능구대고규려합금적초생Si상산생명현적변질효과,경성분호보용체온도처리공예처리후,초생Si적정립재100 min내척촌가은정재36 μm좌우,저표명대고규려합금적변질효과구유장효성,시일충간단실용적고규려합금변질처리공예.
Effects of the melt thermal treatment with composition compensation on morphology of primary Si in hypereutectic Al-20Si alloy were investigated. The results show that the technology can refine grain size of primary Si to approximately 36 μm within 100 min, exhibiting an obvious modification effect on the primary Si and a long duration time. So the melt thermal treatment with composition compensation is a simply and practical technology for modifying the primary Si in the Al-20Si alloy without modifier addition.