Crack growth rate in friction stir welded nugget under different R ratio fatigue load

摘要：

　　2.0 mm thick 2198-T8 Al-Li alloy sheets with the parallel friction stir welds in the middle were used in this work.The center cracked tension (CC(T)) specimens with transverse welds were designed and welded by different welding parameters.Fatigue tests were performed and fatigue crack growths in the nuggets were measured and compared.

关键词： Friction stir weld Welded nugget Fatigue crack growth rate different R ratio

作者: Yu E Ma BaoQi Liu ZhenQiang Zhao

作者单位: School of Aeronautics,Northwestern Polytechnical University,710072,P.R.China

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）