Microstructures and mechanical properties of hot rolled AZ31 Mg alloy sheets

来源期刊:中国有色金属学报(英文版)2006年第z3期

论文作者:范立坤 董杰 张平 曾小勤 丁文江

文章页码:1746 - 1479

Key words:magnesium sheet hot rolling technique; microstructure evolution; grain refinement

Abstract: The microstructures and mechanical properties of hot rolled AZ31 Mg alloy sheets were studied to understand the microstructure evolution during AZ31 Mg alloy hot rolling process. The roller was heated to 180 ℃ with burning hydrogen, and the extruded plates were rolled at 400 ℃ from 10 to 1 mm with a reduction of 30% in thickness per pass. The result shows that there is no side-cracking of these rolled sheets every pass. The extruded microstructures are greatly refined and mechanical properties are improved. The fine grains of about 4 μm were obtained of the final 0.9 mm sheets.

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