Aluminium /Aluminum 2219 alloy can be machined in the annealed condition. In the heat treated condition, this alloy is very difficult to machine. Oil base lubrication is used to perform machining operations.FormingAluminium /Aluminum 2219 alloy can be formed using conventional techniques....
1)2219 aluminum alloy2219铝合金 1.The flow stress behavior of 2219 aluminum alloy under the conditions of the strain rate range from 0.通过Gleeble-1500热模拟机对2219铝合金在应变速率为0。 2.The research about 2219 aluminum alloy′s metallographic examination was carried out and the method was ...
第27卷第1期2006年1月焊接学报TRANSACTIONSOFTHECHINAWELDINGINSTITUTIONV .27N .1January20062219-O铝合金的搅拌摩擦焊接陈迎春,刘会杰,冯吉才(哈尔滨工业大学现代焊接生产技术国家重点实验室,哈尔滨150001)摘要:对2219-O铝合金进行了搅拌摩擦焊接,采用光学显微镜分析了接头的微观组织,采用拉伸试验方法评价了接头的力学性能。
针对2219-T87铝合金双频复合脉冲变极性TIG(DP-VPTIG)深熔焊接过程,采用高速图像采集和多物理场数值仿真技术对熔池传热传质行为进行研究,解耦了双频脉冲电流和方波变极性电流的作用机制,并探究了DP-VPTIG电弧对接头组织性能的影响。结果表明:双频脉冲能有效激发熔池内小孔,方波变极性电流能保证焊接过程稳定,DP-VPTIG可实...
Electron beam welds of aluminum alloy 2219 offer much higher strength compared to gas tungsten arc welds of the same alloy and the reasons for this have not been fully explored. In this study both types of welds were made and mechanical properties were evaluated by tensile testing and pitting ...
大规格2219铝合金圆铸锭存在组织不均匀、晶粒粗大以及大量粗大共晶化合物等铸造缺陷,同时锻造过程操纵性差、变形均匀性控制难度大。通过采用多向锻造、冲孔和马架扩孔的开坯工艺,加大了铸锭的变形程度,有效地细化了晶粒,粗大的共晶化合物也得到了破碎,提高了微观组织的均匀性,改善了材料的力学性能,实现了大规格2219铝合...
Hardness and tensile properties of 2219 Al alloys were tested at various temperature (150, 165, 175 °C) and subjected to T6 temper heat treatment to identify the peak aging time at various temperature. Microstructure evolution and precipitate behavior were analyzed with transmission electron microscop...
针对2219铝合金低匹配VPPA焊缝力学性能降低的问题,以裂纹尖端张开位移(CTOD)为表征参量,开展焊缝断裂韧度试验。结果表明,2219铝合金VPPA焊缝断裂属于弹塑性断裂,常温试验条件下,2219VPPA焊缝的CTOD值为0.089～0.164mm,δ0.2BL值为0.084mm,焊缝金属表现了良好的断裂韧性;母材断口为脆性断裂,VPPA焊缝断口为塑性断裂,韧窝中...
2219-O aluminum alloy was friction stir welded to investigate the effect of friction stir welding on its microstructure and mechanical properties in this paper.The microstructures of different zones in the joint were analyzed by optical microscopy,and the mechanical properties of the joint were evaluat...
求翻译:With the exception of 2219 alloy, the maximum quench delay times may be exceeded if results of tests prove that all product in the load will be above 775 °F (413 °C) when quenched.是什么意思? 待解决 悬赏分:1 - 离问题结束还有 With the exception of 2219 alloy, the maximum ...