摘要
The reinforced phase of in situ formed intermetallic compound Al 3Ti with grain size about 0.5?μm in the aluminum matrix composite was achieved by the method of liquid solid reaction under specific condition. The orientations were also studied. The results show that under T6 heat treatment regime, the tensile strength, hardness, elastic modulus and elongation of Al 3Ti/ZL101 in situ composite are increased by 32.8%, 14.4%, 19.2% and 14.6% respectively in comparison with those of ZL101. Al 3Ti is uniformly distributed in α (Al) matrix with a clear phase interface, and the orientation relationship between Al 3Ti and α (Al) is (006) Al 3Ti ∥ (02-2) Al , -22] Al 3Ti ∥ Al 3Ti ∥-0] Al . The strengthening mechanisms of Al 3Ti/ZL101 in situ composite is proved to be caused by fine grain size, spreading distribution and dislocation multiplication. Al . The strengthening mechanisms of Al 3Ti/ZL101 in situ composite is proved to be caused by fine grain size, spreading distribution and dislocation multiplication.
The reinforced phase of in situ formed intermetallic compound Al 3Ti with grain size about 0.5?μm in the aluminum matrix composite was achieved by the method of liquid solid reaction under specific condition. The orientations were also studied. The results show that under T6 heat treatment regime, the tensile strength, hardness, elastic modulus and elongation of Al 3Ti/ZL101 in situ composite are increased by 32.8%, 14.4%, 19.2% and 14.6% respectively in comparison with those of ZL101. Al 3Ti is uniformly distributed in α (Al) matrix with a clear phase interface, and the orientation relationship between Al 3Ti and α (Al) is (006) Al 3Ti ∥ (02-2) Al , -22] Al 3Ti ∥ Al 3Ti ∥-0] Al . The strengthening mechanisms of Al 3Ti/ZL101 in situ composite is proved to be caused by fine grain size, spreading distribution and dislocation multiplication. Al . The strengthening mechanisms of Al 3Ti/ZL101 in situ composite is proved to be caused by fine grain size, spreading distribution and dislocation multiplication.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2002年第4期643-648,共6页
Transactions of Nonferrous Metals Society of China
基金
ProjectsupportedbyShaanxiProvinceEducationalFund
