摘要
研究了加入质量分数0．15%锆对Al-Mg-Si合金时效(170℃×8h)后及在随后保温(250℃)过程中力学性能和组织的影响。结果表明：加入锆后,合金时效硬度值和力学性能均有一定程度的提高；随保温时间的延长,含锆合金硬度比未含锆合金硬度高,且降低趋势缓慢；主要原因是加入锆后形成了Al_3Zr弥散相粒子,强化了Al-Mg-Si合金。
The effect of addition 0. 15% Zr on the mechanical properties and microstructure of Al-Mg-Si alloy after aging treatment（170 ℃ × 8 h）and holding temperature process（250 ℃ ） was studied. The mechanical properties and aging hardness of Al-Mg-Si alloy were improved to some extent. In addition, the hardness curve of the alloy with Zr showed a slower decreasing than that of alloy without Zr with increasing the holding temperature. The main reason was that the Al3Zr dispersoids improved the properties of alloys.
出处
《机械工程材料》
CAS
CSCD
北大核心
2006年第4期60-63,共4页
Materials For Mechanical Engineering
基金
上海市科委纳米基金(0352nm099)
