Ti-6Al-4V电子束焊接焊缝区域精细组织特征

航空材料学报, 2005, 25(3): 21-24. doi: 10.3969/j.issn.1005-5053.2005.03.005

Ti-6Al-4V电子束焊接焊缝区域精细组织特征

吴会强 ^1, , 冯吉才 ^2, , 何景山 ^3, , 张秉刚 ^4,

1.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

2.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

3.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

4.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

基金项目: 国家高技术研究发展计划(863计划)(2002AA724040)

关键词：电子束焊接 , 钛合金 , 熔合区 , 精细组织

Fine Microstructure Characteristic in Fusion Zone of Electron Beam Welding of Ti-6Al-4V

采用OM,XRD,EPMA,TEM分析了电子束焊接Ti-6Al-4V焊缝区域的精细组织结构特征.结果表明接头区域组织形态由基体等轴晶向焊缝柱状形态演化,焊缝区域呈现单一α′网篮状组织,TEM板束形态呈多向分布,焊缝区域的位错分布密度与基体母材相比呈现出减小的趋势,且熔合线附近存在V,Fe等β稳定元素浓度起伏现象.

参考文献

[1]	Qi Yunlian;Deng Ju;Hong Quan;Zeng Liying .Electron beam welding, laser beam welding and gas tungsten arc welding of titanium sheet[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1):177-181.
[2]	Radhakrishna Ch;RAGHURAMI Reddy J;PRASAD Rao K .Study on microstructures of electron beam and gas tungsten arc Ti-6Al-4V weld metals[J].Practical Metallography,1997,34:194-207.
[3]	DANCE B G I .Introduction to electron beam welding metallurgy[J].Welding Research Abroad,1995,41:19-23.
[4]	Jinkeun Oh;Nack J. Kim;Sunghak Lee .Correlation of fatigue properties and microstructure in investment cast Ti-6Al-4V welds[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):232-242.
[5]	IRVING,BOB .EB welding joins the titanium fuselage of Boeing's F-22 fighter[J].Welding Journal,1994,73(12):31-36.
[6]	Messler R W .Electron beam weldability of advanced titanium alloy[J].Welding Journal,1981,60(05):79S-84S.
[7]	胡礼木 .钛合金Ti-6Al-4V电子束焊接接头的性能研究[J].陕西工学院学报(自然科学版),1997,13(04):43-47.
[8]	BARREDA L;SANTAMARIA F;AZPIROZ X et al.Electron beam welded high thickness.Ti6Al4V plates using fillermetal of similar and different compostion to the base plate[J].Vacuum,2001,62(2/3):143-150.
[9]	ENJO Toshio;KURODA Toshio;NISHIZAWZ Nishizawz .Microstructure and mechanical properties in weld heat affected zone of Titanium alloy[J].Transactions of JWRI(Joining and Welding Research Institute of Osaka University),1988,17:113-118.
[10]	Chen Xiaofeng,Han Zhong,Lou Xinfang,Hu Chuanshun,Sun Changyi,Li Zhongku.Equalization of Ti-6Al-4 V alloy welded joint by scanning electron beam welding[J].中国有色金属学会会刊（英文版）,1999(03):535-540.
[11]	韩忠,林海潮,陈晓风.钛合金电子束焊缝金属微观结构的TEM观察[J].电子显微学报,1999(05):536-539.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Ti-6Al-4V电子束焊接焊缝区域精细组织特征

Fine Microstructure Characteristic in Fusion Zone of Electron Beam Welding of Ti-6Al-4V

参考文献