摘要
对一种实验镁锂新合金进行了室温轧制,轧出厚度为1.0mm的薄板,并对其进行了拉伸性能和残余应力测试。结果表明,随轧制变形量的增加,板材强度增加,塑性降低;经过适当退火处理后,板材延伸率可达到39%,强度保持在180MPa。冷轧板材残余应力值为–3.8MPa,对合金强度基本没有影响。
Tensile tests and residual stress measurements of an experimental new Mg-Li-X alloy sheet of 1.0 mm thickness were conducted. It was found that when the cold rolled sheet was annealed for 30 minutes within 170℃-290℃, the strength of the sheet first droped and then increased with increasing of annealing temperature, while the ductility exhibited an opposite trend. A satisfactory combination of 180 MPa strength with 39% elongation was obtained when the sheet was annealed at 200℃. The residual stress of the as-rolled sheet was measured to be -3.8 MPa, which had less influence on strength.residual stress
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2006年第12期2014-2016,共3页
Rare Metal Materials and Engineering
基金
国家"863"计划(2003AA305071)
