航空材料学报2011，Vol.31Issue(5)：18-22,5.DOI:10.3969/j.issn.1005-5053.2011.5.004
6156铝合金的人工时效与蠕变时效研究
Investigation on Artificial Aging and Creep Aging of 6156 Aluminum Alloy
摘要
Abstract
The characteristics of strengthening and micro-structure of 6156 Aluminum alloy under the conditions of artificial aging ( AA) and creep aging ( CA) were studied by the techniques of optical microscopy ( OM) , transmission electron microscopy ( TEM) , Vicker hardness test, tensile properties test and electric conductivity test. The results show that the peak mechanical properties of the samples treated by various AA or CA schemes have little difference within scales of temperature (155 - 175t )-loading stress (0 -200MPa)-time (8 ~ 14h). However, the amount of precipitates increased and the sizes of them decreased, and then both the mechanical property and electrical conductivity of the CA samples increased as compared with that of the AA samples. The primary creep strains accounted is more than 85% of the total amount strains, and increased extremely with the loading stresses increased. The peak mechanical properties of the CA samples were not sensitive to the testing temperatures and stresses, but the creep strains of them were sensitive to the loading stresses. This implies that the 6156 Aluminum alloy is suitable to creep age forming (CAF) of component.关键词
人工时效/蠕变时效/微观组织/力学性能Key words
artificial aging/ creep aging/ microstrueture/ mechanical property分类
矿业与冶金引用本文复制引用
晋坤,邓运来,周亮,万里,张新明..6156铝合金的人工时效与蠕变时效研究[J].航空材料学报,2011,31(5):18-22,5.基金项目
航空航天用高性能轻合金大型复杂结构件制造的基础研究(2010CB731700) （2010CB731700）
