摘要
The microstructures and mechanical properties of hot rolled AZ31 Mg alloy sheets were studied to understand the microstrucrure 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 4μm were obtained of the final 0.9 mm sheets.
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 4μm were obtained of the final 0.9 mm sheets.
出处
《中国有色金属学会会刊:英文版》
CSCD
2006年第A03期1746-1749,共4页
Transactions of Nonferrous Metals Society of China
关键词
镁合金
微观结构
机械性能
热轧工艺
magnesium sheet hot rolling technique
microstructure evolution
grain refinement