Measurement and analysis of the eutectic aluminum alloys of 6082 and ZL101

作者：Liu Ren Pei^*; Dong Zu Jue; Pan Yong Ming

来源：Transactions of the China Welding Institution, 2005, 26(10): 27-30.

• Melting point
• Morphological distribution
• Solidification cracks

The melting point of the eutectic and morphological distribution between the grains had great effects on the susceptibility of weld solidification cracks during solidification. The morphological distributions of aluminum 6082 and ZL101 had been obtained by water quenching method and the melting temperature and heat absorption of the weld metal had been measured with DSC. The results show that the type of eutectic and their morphological distribution are different with different aluminum alloy. Al-Mg2Si and Al-Mg2Si-Si + Al-AlFeMnSi are two kinds of eutectics for 6082 alloy which are shaped of thin films between the grains and their melting temperatures are 555°C and 595°C respectively. For ZL101 alloy there are two kinds of eutectics, namely Al-Si and Al-Mg2Si-FeMgSi6Al8-Si which are distributed with continuous nets between the grains and their melting temperatures are 544°C and 577°C respectively. These results are in favor of studying the cracking behaviors of weld solidification cracks.

• 出版日期2005
• 单位南京航空航天大学