RAFM钢TIG焊和电子束焊疲劳性能实验和分析模拟
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摘要
利用ANSYS对低活化铁素体马氏体(RAFM)钢进行非熔化极气体保护焊(TIG焊)与电子束焊的抗疲劳模拟分析,再利用SDS200电液伺服疲劳试验机对TIG焊和电子束焊的两种RAFM钢试件进行实验。通过施加相同梯度负荷对TIG焊和电子束焊试件进行焊缝的疲劳性能实验。与实验结果对比分析,结果显示电子束焊优于TIG焊,但在一定负载下可以用TIG焊代替电子束焊。
The anti-fatigue simulation of Tungsten Inert Gas(TIG) welding and electron beam welding of reduced activation ferrite martensite(RAFM) steel was carried out by using ANSYS. Two types of RAFM steel specimens of TIG welding joint and electron beam welding joint were also tested by SDS200 electro-hydraulic servo fatigue testing machine. The fatigue performance of the weld joint both on TIG welding and electron beam welding was tested by applying the same gradient load. Comparison with experimental results shows that electron beam welding is superior to TIG welding, but under certain load, TIG welding can be used instead of electron beam welding.
The anti-fatigue simulation of Tungsten Inert Gas(TIG) welding and electron beam welding of reduced activation ferrite martensite(RAFM) steel was carried out by using ANSYS. Two types of RAFM steel specimens of TIG welding joint and electron beam welding joint were also tested by SDS200 electro-hydraulic servo fatigue testing machine. The fatigue performance of the weld joint both on TIG welding and electron beam welding was tested by applying the same gradient load. Comparison with experimental results shows that electron beam welding is superior to TIG welding, but under certain load, TIG welding can be used instead of electron beam welding.
引文
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[2]Rolfe S T,Barsom J M.Fracture and fatigue contral in structures[M].Englewood Cliffs(N.J.)Prontice-Hall Inc,1997.
[3]濮良贵,纪名刚.机械设计[M].北京:高等教育出版社,2008.
[4]王彦伟,罗继伟,叶军,等.基于有限元的疲劳分析方法及实践[J].机械设计与制造,2008,01:22?24.
[5]孙伟.结构震动疲劳寿命估算方法研究[D].南京:南京航空航天大学,2005.
[6]Vasudevan M,Bhaduri A K,Raj B,et al.Studies on A-TIG welding of 2.25Cr-1Mo(P22)steel[J].Mater.Manuf.Process,2007,18:55-59.
[7]Anderson P C J,Wiktorowicz R.Improving productivity with A-TIG welding[J].Weld Metal Fabr,1996,64:108.
[8]Thomas Paul V,Saroja S,Albert S K,et al.Micro-structural characterization of weld joints of 9Cr reduced activation ferritic martensitic steel fabricated by different joining methods[J].Materials Characterization,2014,96:213-224.