不同热处理对TC4钛合金电子束焊接接头组织与性能的影响
THE INFLUENCE ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF ELECTRON BEAM WELDED JOINT TC4 ALLOY WITH DIFFERENT HEAT TREATMENT
摘 要
对分别处于退火和固溶时效态的TC4钛合金进行电子束焊接,焊后进行不同热处理。采用光学显微镜和X射线衍射的分析方法对这两种TC4钛合金焊接件母材、热影响区及焊缝的显微组织及相组成进行了观察和分析,同时对其进行了室温拉伸和冲击试验。结果表明,同种电子束焊接工艺经过不同焊前及焊后热处理,各区域组织明显不同,由此导致了退火态焊接件抗拉强度低于固溶态焊接件,冲击性能略高于后者,同时这两种焊接件的抗拉强度及冲击性能均高于母材。
电子束焊接
微观组织
力学性能
TC4 alloy
Electron beam weld
Microstructure
Mechanical property
Abstract
The TC4 titanium alloy was welded by electron beam (EBW),after that,the samples have been annealed and solution treated pre-welded separately. Microstructure and phase composition characteristics of base metal,heat affected zone (HAZ) and fusion zone (FZ) of these welds of TC4 were studied by means of OM and XRD. Tension and impact test were carried out at room temperature. The results indicated that EBW TC4 welds with different pre-and post-weld heat treatments have different microstructures in base metal,HAZ and FZ,which result in the ultimate tensile strength (UTS) and yield strength (YS) of annealed state welds less than that of solution treated welds,but the impact toughness of the former greater than the latter. However,the UTS,YS and impact toughness of the two kinds of welds larger than that of base metal.
中图分类号 TG407
所属栏目 试验与研究
基金项目
收稿日期 2007/1/8
修改稿日期
网络出版日期
作者单位点击查看
备注顾宝兰(1982-),女,硕士。
引用该论文: GU Bao-lan,XU Xue-dong,WANG Li. THE INFLUENCE ON MICROSTRUCTURE AND MECHANICAL PROPERTY OF ELECTRON BEAM WELDED JOINT TC4 ALLOY WITH DIFFERENT HEAT TREATMENT[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2007, 43(12): 595～598
顾宝兰,徐学东,王 丽. 不同热处理对TC4钛合金电子束焊接接头组织与性能的影响[J]. 理化检验－物理分册, 2007, 43(12): 595～598
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】吴会强,冯吉才,何景山,等.Ti-6Al-4V电子束焊接焊缝区域精细组织特征［J］.航空材料学报,2005,25(3):21-24．
【2】C M古列维奇.高强度钛合金的焊接［M］.北京:国防工业出版社,1980:56-102．
【3】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,1997,13(4):43-47．
【4】韩 忠,林海潮.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,1999,18(5):536-539．
【5】Thomas G,Ramachandra V,Ganeshan R. Effect of pre-and post-weld heat treatments on the mechanical properties of electron beam welded Ti-6Al-4V alloy［J］. Materials Science,1993,28:4892-4899．
【6】E A鲍利索娃.钛合金金相学［M］.北京:国防工业出版社,1986:420-436．
【7】Zhou Wei,Chew K G. Effect of welding on impact toughness of butt-joints in a titanium alloy［J］. Materials Science and Engineering A,2003,347:180-185．
【2】C M古列维奇.高强度钛合金的焊接［M］.北京:国防工业出版社,1980:56-102．
【3】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,1997,13(4):43-47．
【4】韩 忠,林海潮.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,1999,18(5):536-539．
【5】Thomas G,Ramachandra V,Ganeshan R. Effect of pre-and post-weld heat treatments on the mechanical properties of electron beam welded Ti-6Al-4V alloy［J］. Materials Science,1993,28:4892-4899．
【6】E A鲍利索娃.钛合金金相学［M］.北京:国防工业出版社,1986:420-436．
【7】Zhou Wei,Chew K G. Effect of welding on impact toughness of butt-joints in a titanium alloy［J］. Materials Science and Engineering A,2003,347:180-185．
相关信息
