中文摘要：

A 小说一步舞半固体处理技术， rheo-diecasting (RDC ) 过程，被开发，它在半固体的 situ 创造适应金属泥浆与好；球形的稳固的粒子由用存在寒冷的进一个近网的形状部件的泥浆的直接塑造列在后面房间死扔过程。RDC 过程被使用处理 A356；A380 铝合金。产生微观结构；在当演员组下面的 RDC 产品的机械性质；各种各样的热处理条件被分析。试验性的结果证明 RDC 样品有一个极其低的孔，罚款；在整个全部扔的一致微观结构，；因而，大部分改进了力量；处于当演员组条件的韧性。RDC A356 合金的力量能实质地在 T5 下面被改进；没有韧性的损失的 T6 热处理。

英文摘要：

A novel one-step semisolid processing technique, the rheo-diecasting （RDC） process, was developed, which adapts in situ creation of semisolid metal slurry with fine and spherical solid particles followed by direct shaping of the slurry into a near-net shape component using the existing cold chamber diecasting process. The RDC process was applied to process A356 and A380 aluminum alloys. The resulting microstructures and mechanical properties of RDC products under as-cast and various heat treatment conditions were analyzed. The experimental results show that the RDC samples have an extremely low porosity, a fine and uniform microstructure throughout entire casting, and consequently much improved strength and ductility in the as-cast condition. The strength of RDC A356 alloy can be substantially improved under T5 and T6 heat treatments without loss of ductility.