铸造2017，Vol.66Issue(3)：273-276,281,5.
固溶处理对Al-13.0Si-4.5Cu-1.0Mg-2.0Ni合金组织和性能的影响
Effects of Solution Treatment on Microstructure and Properties of Al-13.0Si-4.5Cu-1.0Mg-2.0Ni Alloy
郭震 1陈文琳1
作者信息
- 1. 合肥工业大学 材料科学与工程学院,安徽合肥230009
- 折叠
摘要
Abstract
Effects of solution treatment on the microstructure and mechanical properties of the A1-13.0Si-4.5 Cu-1.0Mg-2.0Ni alloy were investigated by means of microstructure observation,X-ray diffraction phase analysis a,scanning of topography,and hardness and tensile testing.The results show that the optimal solution treatment of the alloy is solution-treated at 510 ℃ for 6 h.After aging treatment,the strength of the alloy at room temperature increased from 187 MPa to 290 MPa,by 57.6％.Subjected to solution treatment,the eutectic Si crystals are absolutely spheroidized and distributed homogeneously in the α-Al matrix,reducing fragrnentation to the matrix.At the same time,the M-Mg2Si,θ-Al2Cu and Q-Al5Cu2Mg8Si6 phases are dissolved into the α-Al matrix to form supersaturated solid solution,and re-precipitated subsequently during the aging treatment,leading to solution strengthening and precipitation strengthening.关键词
Al-13.0Si-4.5Cu-1.0Mg-2.0Ni合金/固溶处理/微观组织/力学性能Key words
Al-Si-Cu-Mg-Ni alloy/solution treatment/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
郭震,陈文琳..固溶处理对Al-13.0Si-4.5Cu-1.0Mg-2.0Ni合金组织和性能的影响[J].铸造,2017,66(3):273-276,281,5.
