Production of Very Fine Grained Mg–3%Al–1%Zn Alloy by Continuous Extrusion Forming (CONFORM)
Production of Very Fine Grained Mg–3%Al–1%Zn Alloy by Continuous Extrusion Forming (CONFORM)
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DOI：
10.1002/adem.201000007
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发表时间：
2010-09
影响因子：
3.6
通讯作者：
Youliang He;F. Gao;B. Song;Jian Li;R. Fu;G. Wu
中科院分区：
文献类型：
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作者：
Youliang He;F. Gao;B. Song;Jian Li;R. Fu;G. Wu
使用工业连续挤压成型机(CONFORM)生产极细晶(∼2微米)镁-3%铝-1%锌合金棒材。使用铸棒(晶粒度∼150微米)作为原料，在一次挤压过程中实现了显著的晶粒细化。使用挤压样品在473K下获得了约200%的拉伸延伸率。这证明了Conform作为一种连续的严重塑性变形过程的潜在应用，以生产非常细晶的金属以获得超塑性性能。
Very fine grained (∼2 µm) Mg–3%Al–1%Zn alloy rods are produced using an industrial continuous extrusion forming (CONFORM) machine. Cast rods (grain size ∼150 µm) are utilized as the feedstock and significant grain refinement is achieved in a single extrusion process. Tensile elongation of about 200% is achieved at 473 K using the extruded sample. This demonstrates the potential application of CONFORM as a continuous severe plastic deformation process to produce very fine grained metals to attain superplastic properties.