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Development of aluminum rheo-extrusion process using semi-solid slurry at low solid fraction T. RATTANOCHAIKUL1, S. JANUDOM1, N. MEMONGKOL2, J. WANNASIN1 1. Department of Mining and Materials... extruded parts. Key words: aluminum alloys; extrusion; semi-solid metal; rheo-extrusion; gas induced semi-solid (GISS) 1 Introduction Extrusion is one of the various forming processes that is used......
wires of Al-0.16Zr, Al-0.16Sc, Al-0.12Sc-0.04Zr (mass fraction, %) and pure Al (99.996%) were produced with the diameter of 9.5 mm by continuous rheo-extrusion technology, and the extruded materials were... strength and electrical conductivity reach 160 MPa and 64.03% (IACS), respectively. Key words: alloy composition; Al wires; mechanical properties; electrical conductivity; continuous rheo-extrusion 1......
材；连续流变扩展成形；时效；性能 中图分类号:TG 111.4; TG 244.1 文献标识码: A Continuous extending rheo-extrusion process for producing 6201 alloy tube GUAN Ren-guo, LI Xue, LI Jiang-ping, XIAO Zhao-hui, ZHU Li-jie, WEN Jing-lin (School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract: Continuous extending rheo-extrusion process......
rheo-extrusion process of AZ31 alloy GUAN Ren-guo1, ZHAO Zhan-yong1, CHEN Li-qing2, WANG Fu-xing1 (1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; 2. State... rheo-extrusion process of AZ31 alloy were analyzed. The results show that the temperature of the alloy gradually decreases from the casting mouth to the exit in the roll-shoe gap, and the isothermal line......
度和速度密切相关；流变挤压中浆料在通过挤压模时凝固,得到平均晶粒尺寸约8 μm的铸态组织,其原因是大量二次形核的核心得以存留并长大. 关键词:镁合金；流变铸造；流变挤压；二次形核 中图分类号:TG146.2 文献标识码:A Rheo-extrusion of AZ61 Mg alloy and its microstructure... with the average grain size of about 40 μm. The d 22 mm rods were fabricated by hot extrusion and rheo-extrusion separately, the microstructure of these rods and the relationship between the extrusion force......
on the microstructures and properties of Al-Sc-Zr alloys, the Al-Sc-Zr alloys prepared by continuous rheo-extrusion were treated by thermomechanical treatment, analyzed for conductivity and mechanical properties... and Al-Zr master alloy with a proper proportion were added into the melt. The alloys were heated to 720 °C again and kept for 10 min. After drossing, the alloy melt was poured into DZJ-300 continuous rheo......
, squeeze casting, gravity casting, and rheo-extrusion of the semi-solid slurries prepared by the GISS process have also been conducted. The GISS process is capable of processing various alloys including cast... casting, and rheo-extrusion of the slurries prepared by the GISS process have been researched and developed for the past two years. In these forming processes, the added step is the immersion......
preparation and rheo-extrusion organically. It is a very short process and can save energy, materials and cost. In addition, big cross-section tubes and profiles could be produced by extending rheo-extrusion. Conventional splitflow extrusion mould was modified, and continuous extending rheo-extrusion of alloy product with big cross section was achieved. During continuous semisolid extending extrusion......
和切应力,使枝晶组织不断被剪切破碎,成为玫瑰晶或球形晶,形成优良的半固态金属浆料.在型腔出口位置上下轧辊对半固态浆料进行轧制成形,实现了浆料制备与流变成形的一体化和连续化. 图1 连续流变成形原理示意图 Fig.1 Schematic diagram of rheo-extrusion forming 实验所用材料为自行配置的Mg-3Sn-1Mn合金,其主要成分..., WANG Fu-xing. Numerical simulation of continuous rheo-extrusion process of AZ31 alloy[J]. The Chinese Journal of Nonferrous Metals, 2010, 20(5): 924-929. [18] SPHENCER D B, MEHRABIAN R, FLEMINGS M C......
): 1-34. [11] ZHANG Shao-ming, YANG Bi-cheng, FAN Zhong-yun, XU Jun, SHI Li-kai, CHEN Guo-liang. Rheo-extrusion of AZ61 Mg alloy and its microstructure [J]. The Chinese Journal of Nonferrous Metals... Optimization of processing parameters for rheo-casting AZ91D magnesium alloy WANG Ya-bao(王亚宝), XU Jun(徐 骏), YANG Bi-cheng(杨必成), ZHANG Zhi-feng(张志峰) General Research Institute......
