论文部分内容阅读
大多数工程材料常常含有硬性杂质、金属间化合物和第二相微粒。纯金属中的这些微粒是通过析出作用与机械掺合的方式产生的,以便提高工程材料的强度。这些微粒使材料在变形加工过程中出现许多问题。众所周知,在各种加工场合下,塑性变形是材料进行变形加工的基础,而塑性变形也可能因塑性流动的不断延续发展到材料断裂。所以,全面了解加工参数、材
Most engineering materials often contain hard impurities, intermetallics, and second phase particles. These fine particles in pure metal are produced by means of precipitation and mechanical blending in order to increase the strength of the engineered material. These particles make the material in the deformation process in many problems. As we all know, in a variety of processing occasions, plastic deformation is the basis for deformation of the material processing, and plastic deformation may also be due to the continuous expansion of plastic flow to the material fracture. So, a comprehensive understanding of processing parameters, timber