Fabrication of Bulk Mg Rod with Ultrafine-Grained Microstructure Utilizing Multi-Pass Caliber-Rolling

主题一：多道次口径轧制AZ31合金的制备我在澳大利亚悉尼举行的第七届严重塑性变形纳米材料国际学术会议(NanoSPD7)上介绍了我的成果。题目为“AZ31棒材多道次轧制组织演变及力学性能改进”。这次演讲受到了很大的关注，我得到了对未来工作的各种评论。特别值得注意的是，一些研究人员对第七道次和第八道次轧管之间的机械性能极端恶化提出了质疑。我同意他们的说法，即在提交我的工作之前，彻底确认在这些条件下的整个实验。主题II：多道次口径轧制AZ31合金的低温力学性能I还获得了在低温(~150K)下变形的口径轧制AZ31棒材的拉伸数据。然而，在进行大量额外的实验和分析之前，这些结果看起来不足以发表。由于之前提交的原因，这项研究项目已经暂停，因此这些研究的继续将被掩盖一段时间。

Topic I: the fabrication of multi-pass caliber-rolled AZ31 alloyI gave a presentation about my results in the international academic conference of 'Seventh International Conference on Nanomaterials by Severe Plastic Deformation (NanoSPD7)' held in Sydney, Australia. The title was 'Microstructural Evolution and Mechanical Improvement of AZ31 Bulk Rod via Multi-Pass Caliber-Rolling Process'. The presentation received much attentions and I got various comments for the future work. It is of particular note that some researchers raised question about the extreme deterioration in mechanical properties between the caliber-rolling of 7th and 8th passes. I agree with their claims to thoroughly confirm the entire experiments under these conditions before submitting my work.Topic II: the cryogenic mechanical properties of multi-pass caliber-rolled AZ31 alloyI have also obtained the tensile data of caliber-rolled AZ31 rod deformed at cryogenic temperature (~150 K). The results, however, look insufficient to publish before carrying out a lot amount of additional experiments and analyses. This research project has been halted due to the reasons which had been submitted earlier, and thus the continue of these studies would be in veil for a while.