摘要
为了实现TA2/316L复合棒界面的牢固结合,参照爆炸焊接基本理论对钛和不锈钢进行焊接窗口计算,并结合实践经验进行爆炸焊接工艺参数的优化,然后采用优化的工艺参数进行了复合棒的试制。试验结果表明:采用优化工艺制备的TA2/316L复合棒结合率为100%,拉剪强度≥300 MPa,气密性≤1.0×10^(-12) Pa·m^(3)·s^(-1)(100%氦气、压差0.1 MPa)。金相观察结果显示,复合棒结合界面呈现不连续非均匀的波状结合形貌,基复材产生明显爆炸加工硬化现象;爆炸焊接外爆法制备细径复合棒,其中心易产生马赫裂纹。通过实验检测,优选出更佳的爆炸焊接工艺,满足了工程应用的需要。
In order to achieve the TA2/316L composite rod interface firmly combined,according to the basic therory of explosive welding,the explosive welding window of titanium and stainless steel is calculated,and the process paramters of explosive welding are optimized base on practical experience,and then the clad bar is trial produced with the optimized process parameters.The test results show that the clad bar prepared by the optimized process is 100%,the tensile shear strength is not less 300 MPa,and theair tightness is not more than 1.0×10^(-12) Pa·m^(3)·s^(-1)(100%helium,differential pressure 0.1 MPa).The metallographic observation results show that the bonding interface of the clad bar presents discontinuous and uneven wavy bonding morphology,and the base material and the covering material have obvious explosive work harding phenomenon.Mach crack is easy to occur in the center of the thin diameter clad bar prepared by explosive welding and external explosion.Through experimental testing,the better explosive welding process is optimized,which meets the needs of engineering applications.
作者
韩刚
蒋晓博
翟伟国
HAN Gang;JIANG Xiao-bo;ZHAI Wei-guo(Luoyang Ship Material Research Institute,Luoyang 471000,Henan,China)
出处
《工程爆破》
北大核心
2025年第2期111-118,共8页
Engineering Blasting
基金
中国船舶集团有限公司第七二五研究所科技创新基金资助项目(LW211903)。
关键词
爆炸焊接
焊接窗口
工艺参数
复合棒
explosive welding
welding window
technological parameter
clad bar
作者简介
韩刚(1983-),男,硕士,高级工程师,从事爆炸焊接及金属层状复合材料成型与加工方面的研究。E-mail:hangang725@163.com。
