CAJ | 학술논문

采用自制的喷射沉积连续挤压设备,完成2A12铝合金的喷射沉积连续挤压试验,获得了 d 7 mm 的铝合金制品,并采用光学显微镜和扫描电镜对其显微组织进行分析.结果表明:在本试验条件下,该制品由帽状的粗晶层和细晶层交替堆垛而成,粗晶层的晶粒尺寸不大于30μm,细晶层的晶粒尺寸在10μm 以下;该制品内仅有少量尺寸在3μm 以内的孔洞,相对密度可达99.1%.
채용자제적분사침적련속제압설비,완성2A12려합금적분사침적련속제압시험,획득료 d 7 mm 적려합금제품,병채용광학현미경화소묘전경대기현미조직진행분석.결과표명:재본시험조건하,해제품유모상적조정층화세정층교체퇴타이성,조정층적정립척촌불대우30μm,세정층적정립척촌재10μm 이하;해제품내부유소량척촌재3μm 이내적공동,상대밀도가체99.1%.
@@@@The spray forming Conform experiment of 2A12 aluminum alloy was accomplished by self-made spray forming Conform equipment. Ultimately, the Al alloy rod with diameter of 7 mm is obtained. The microstructure of the Al alloy rod was analyzed by optical microscopy (OM) and scanning electron microscopy (SEM). The results show that the alloy rod is composed of alternately hat-like coarse-grained layer with grain size under 30 μm and fine-grained layer with grain size under 10 μm. There are a little holes with size less than 3 μm, and the relative density of the product is 99.1%.