Influence of Manganese on Deformation Behavior of Magnesium Under Dynamic Loading
Influence of Manganese on Deformation Behavior of Magnesium Under Dynamic Loading
复制标题
锰对镁动载变形行为的影响
DOI：
10.1007/978-3-030-36647-6_56
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Mukai Toshiji
中科院分区：
文献类型：
--
作者：
Goeda Ryutaro;Yamaguchi Masatake;Nakatsuji Tatsuya;Ikeo Naoko;Mukai Toshiji
镁合金是一种很有前途的轻质结构材料。然而，它们的实际应用需要提高强度和延展性。添加锰作为溶质通过促进晶界滑动来改善镁合金的室温塑性，但其对动态载荷下变形行为的影响尚不清楚。因此，我们研究了应变速率依赖性的流变应力和变形机制的Mg-Mn合金通过拉伸试验在很宽的应变速率范围内。在准静态条件下，晶界滑移导致较大的伸长率。相反，Mg-Mn合金在高应变速率区表现出有限的颈缩，主要是沿晶断裂。
Magnesium alloys are promising lightweight structural materials . However, their practical utilization requires improvement of strength and ductility. Adding manganese as a solute improves the room-temperature ductility of magnesium alloys by facilitating grain boundary sliding, but its effects on deformation behavior under dynamic loading remain unclear. Accordingly, we investigated the strain rate dependence of both the flow stress and the deformation mechanism of Mg–Mn alloys via tensile tests over a wide range of strain rates. Grain boundary sliding induced relatively larger elongation under quasi-static conditions. On the contrary, the Mg–Mn alloy exhibited limited necking in the high strain rate regime dominated by intergranular fracture.
DOI：
10.2355/tetsutohagane1955.79.8_n568
发表时间：
1993
期刊：
影响因子：
--
作者：
Yasufumi Suzuki
通讯作者：
Yasufumi Suzuki
DOI：
10.2320/materia.52.484
发表时间：
2013
期刊：
Bulletin of the Japan Institute of Metals
影响因子：
--
作者：
H. Mori;K. Fujino;K. Kurita;Y. Chino;N. Saito;M. Noda;Hiroshi Komai;H. Obara
通讯作者：
H. Obara