4 变形材料合金的组织与性能 Al-Si系变形铝合金的用途,主要是做锻件、接合件和建筑材料。本节叙述这些用途,以及说明合金的有关组织和性能; 4.1 锻造用合金表3示出按Si量和锻造温度区分的锻造合金及用途。多用于制造各种活塞、VTR缸等。过共晶系合金着重用于要求耐磨性 4 deformation of the alloy structure and properties Al-Si deformation of the use of aluminum alloy, mainly forging, joining parts and building materials. This section describes these uses, as well as illustrating the organization and properties of the alloys. 4.1 Forging Alloys Table 3 shows forged alloys distinguished by forging capacity and forging temperature and their use. Used in the manufacture of various piston, VTR cylinder. Hypereutectic alloys focus on the requirements of wear resistance