US 12,214,393 B2
Magnesium or magnesium alloy having ultra-high formability at room temperature and manufacturing method thereof
Jianfeng Nie, Clayton (AU); Zhuoran Zeng, Clayton (AU); Shiwei Xu, Shanghai (CN); Nick Birbilis, Clayton (AU); Christopher H. J. Davies, Clayton (AU); and Weineng Tang, Shanghai (CN)
Assigned to BAOSHAN IRON & STEEL CO., LTD., Shanghai (CN); and CHINA BAOWU STEEL GROUP CORP., LTD., Shanghai (CN)
Appl. No. 16/649,867
Filed by BAOSHAN IRON & STEEL CO., LTD., Shanghai (CN); and China Baowu Steel Group Corporation Limited, Shanghai (CN)
PCT Filed Sep. 21, 2018, PCT No. PCT/CN2018/106867
§ 371(c)(1), (2) Date Mar. 23, 2020,
PCT Pub. No. WO2019/057139, PCT Pub. Date Mar. 28, 2019.
Claims priority of application No. 201710875802.0 (CN), filed on Sep. 25, 2017.
Prior Publication US 2020/0269297 A1, Aug. 27, 2020
Int. Cl. B21C 23/00 (2006.01); C22C 23/00 (2006.01)
CPC B21C 23/002 (2013.01) [C22C 23/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A manufacturing method for manufacturing a magnesium alloy extrusion product, extruding a magnesium alloy raw material ingot at a temperature of 20-80° C. and an extrusion ratio of 10:1 to 100:1 to obtain the magnesium alloy extrusion product,
wherein the magnesium alloy extrusion product consists of magnesium, silver, and strontium and has ultra-high room temperature formability and a grain size of ≤2 μm.