摘要
研究了挤压温度和挤压比对6063铝合金组织及导热性能的影响。结果表明:通过挤压能有效地改善该合金的组织,使得强化相Mg2 Si均匀弥散分布在α-Al基体上。随着挤压温度的增大,材料的热导率下降。当挤压比小于50时,材料的热导率随着挤压比的增大而增大;当挤压比大于50时,材料热导率下降。当挤压比为50,挤压温度为380℃时,材料有最大热导率221.2 W/(m.K)。
The effect of extrusion temperature and extrusion ratio on microstructure and thermal conductivity of 6063 aluminum alloy was investigated.The results show that the microstructure of 6063 aluminum alloy was effectively improved after extrusion,and the strengthening phase Mg2Si was uniformly dispersed in the α-Al matrix.The thermal conductivity of 6063 aluminum alloy obviously decreases with the increase of extrusion temperature.When extrusion ratio is less than 50,the thermal conductivity increases with the increase of extrusion ratio,while extrusion ratio is greater than 50,the thermal conductivity decreases with the extrusion ratio.When extrusion ratio is 50 and extrusion temperature is 380℃,thermal conductivity of the alloy can get to the maximum of 221.2W/（m·K）.
出处
《铝加工》
CAS
2011年第5期30-33,共4页
Aluminium Fabrication
基金
广西自然科学基金项目(桂科基0991002)
关键词
6063铝合金
挤压温度
挤压比
热导率
6063 aluminum alloy
extrusion temperature
extrusion ratio
thermal conductivity
