GH4169合金电子束焊接接头CTOD断裂韧度  

CTOD fracture toughness of electron beam welded joints of GH4169 alloy

作　　者：吴冰[1] 左从进[1] 李晋炜[1] 张彦华[2] 熊林玉[2] 

机构地区：[1]北京航空制造工程研究所,北京100024 [2]北京航空航天大学机械学院,北京100083

出　　处：《现代制造工程》2005年第S1期97-99,共3页Modern Manufacturing Engineering

摘　　要：根据GB/T2358—94标准,分别在20℃和650℃下,对GH4169合金电子束焊接接头的裂纹尖端张开位移(CTOD)进行测试。取SE(B)试样进行三点弯曲试验,然后由所得到的20℃和650℃下母材和电子束焊缝的P-V曲线来计算CTOD值,比较两个温度下的试验结果,对试验结果进行了分析讨论。In accordance with the GB/T 2358—94,test method for crack-tip opening diaplacement measurement of metallic material,CTOD(crack-tip opening diaplacement) tests were reconducted at 20℃and 650℃in electron beam welded joints of GH4169 alloy.According to the requirements of the standard,the specimen is a standard SE(B)(three point bending),the results were calculated by using the P-V curves of parent material and weldmetal.Finally,the test results were generalized and analysed.

关 键 词：电子束焊接 GH4169 裂纹尖端张开位移 

分 类 号：TG407[金属学及工艺—焊接]