Structured Design and Residual Stress for Ni/Ni3Al Multi-layered Sheet

摘要：

The residual stress and the effect of microstructure prameters on failure performance of Ni/Ni3Al multi-layered sheet were studied by Correlative theory and FE method. The results showed that the fracture work increases gradually with the increasing of layer number or thickness ratio. However, the rising extent reduced gradually and when the two parameters exceeded a certain value, the fracture work would not be changed. The value of residual stress reached its maximum at the centre and reached its minimum at the edge of multi-layered sheet. Residual stress in Ni layers and Ni3Al layers was compressive stress and tension stress respectively. With increasing of layer number or thickness ratio, compressive stress would rise gradually and compressive stress would reduce gradually.

关键词： multi-layered optimum design residual stress toughness

作者: YongDong Xiao ZhaoHui Hu HongCheng Gao JiMin Li

作者单位: Beijing Composite Materials Co.,Ltd. P.O.Box261, Beijing, China, 102101

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Materials and Engineering Materials(2011先进材料与工程材料国际会议 ICAMEM 2011)

会议地点: 沈阳

会议语种:英文

页码: 118-121

在线出版日期: 2011-11-22（万方平台首次上网日期，不代表论文的发表时间）