Research on the drawing process with a large total deformation wires of AZ31 alloy
Research on the drawing process with a large total deformation wires of AZ31 alloy
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AZ31合金大总变形拉丝工艺研究
DOI：
10.1088/1742-6596/240/1/012107
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
M. Suliga
中科院分区：
文献类型：
--
作者：
T. Bajor;Z. Muskalski;M. Suliga
近年来，镁及其合金得到了广泛的研究，不仅因为它们作为轻质工程材料的潜在应用，还因为它们的生物降解性。由于其六方密排晶体结构，镁合金的冷塑性加工很困难。作者的初步研究表明，基于循环应变路径变化效应的KOBO方法应用于镁合金的变形，为获得细晶结构材料以用于大总变形的进一步冷塑性加工提供了可能。这项工作的主要目的是提出有关详细分析 AZ31 合金丝在多级冷拔过程中的机械性能和结构变化的研究成果。适当的拉拔参数选择和多步热处理操作的应用，使得AZ31合金在冷拉拔过程中的变形总拔模量达到90%左右。
Magnesium and their alloys have been extensively studied in recent years, not only because of their potential applications as light-weight engineering materials, but also owing to their biodegradability. Due to their hexagonal close-packed crystallographic structure, cold plastic processing of magnesium alloys is difficult. The preliminary researches carried out by the authors have indicated that the application of the KOBO method, based on the effect of cyclic strain path change, for the deformation of magnesium alloys, provides the possibility of obtaining a fine-grained structure material to be used for further cold plastic processing with large total deformation. The main purpose of this work is to present research findings concerning a detailed analysis of mechanical properties and changes occurring in the structure of AZ31 alloy wire during the multistage cold drawing process. The appropriate selection of drawing parameters and the application of multistep heat treatment operations enable the deformation of the AZ31 alloy in the cold drawing process with a total draft of about 90%.