Study on Microstructure and Properties of Titanium/Steel Hybrid Bonding Interface
-
摘要: 针对钛/钢异种金属连接难点,采用钛合金粉末和船用钢,通过表面结构设计和粉末冶金技术,实现了钛/钢冶金连接+机械连接的混合连接界面结构。结果表明:钛/钢混合连接界面100%结合,Fe元素和Ti元素相互扩散,形成了冶金结合,在机械结合的共同作用下,混合连接接头的抗拉强度达到449 MPa, 剪切强度达到299 MPa,冲击吸收能量达到31 J。研究成果可满足高强度钛合金与钢复合、提升连接界面冲击韧性以及在曲面结构应用等钛/钢焊接需求。Abstract: Aiming at the difficulty of titanium/steel dissimilar metal connection, the titanium and steel are jointed through metallurgical and mechanical connection by surface structure design and powder metallurgy technology with the titanium alloy powders and marine steel. It is found out that the interface of titanium/steel hybrid joint is 100% bonded. The inter-diffusion of Fe and Ti elements helps to form the metallurgical bonding, and combining with the mechanical bonding, the tensile strength of the hybrid joint reaches 449 MPa, the shear strength reaches 299 MPa, and the impact energy reaches 31 J. The research results can meet the needs of titanium/steel welding such as realizing the joint of high-strength titanium alloy and steel, improving the impact toughness of the connection interface, and facilitating the application of titanium/steel joint in the curved surface structures.
-
Key words:
- dissimilar metal connection /
- titanium/steel /
- hybrid bonding /
- microstructure /
- properties
-
[1] 刘夫,李士凯,蒋鹏,等.钛/钢异种金属焊接技术的研究进展[J].材料开发与应用, 2020, 35(2):67-74. [2] 郭悦,高福洋,高奇,等.基于添加铜过渡层的钛钢异种金属真空扩散焊研究[J].材料开发与应用, 2020, 35(2):62-66. [3] 宋庭丰,蒋小松,莫德锋,等.不锈钢和钛合金异种金属焊接研究进展[J].材料导报, 2015, 29(11):81-87. [4] 程挺宇,郑锋,薛为林.钛-不锈钢异种金属焊接技术[J].稀有金属与硬质合金, 2009, 37(2):63-65. [5] 吕攀,王克鸿,朱和国.钛合金与不锈钢异种金属焊接的研究现状[J].热加工工艺, 2017, 46(13):26-32. [6] 王勇.钛合金与不锈钢真空热轧焊接连接机理探讨[D].哈尔滨:哈尔滨工业大学, 2007. [7] 邓永强.纯钛及Ti-6Al-4V合金及其与304不锈钢及Inconel镍基合金的连接研究[D].重庆:重庆大学, 2016. [8] 元琳琳,李彬,王冉,等.银基钎料真空钎焊钛/钢接头组织与性能研究[J].贵金属, 2017, 38(S1):1-6. [9] 刘士磊.非晶钎料真空钎焊TC4钛合金及不锈钢的研究[D].郑州:郑州大学, 2017. [10] 张鹏贤,汪舸,李世龙. Cr、V粉末层介入对钛/钢电阻钎焊接头组织和性能的影响[J].兰州理工大学学报, 2017, 43(1):24-28. [11] 张鹏贤,于海宇,汪舸.镍喷涂层下钛/钢电阻钎焊的接头形成机制[J].焊接学报, 2017, 38(3):62-66. [12] 安徽宝泰特种材料有限公司.大面积钛-钢爆炸复合板的制备方:CN201711398584.2. 2018-05-01. [13] 裴大荣.爆炸焊接钛-不锈钢接头冶金结合的某些特点[J].稀有金属材料与工程, 1986, 15(4):28-31. [14] 张越举,杨旭升,李晓杰,等.钛/钢复合板爆炸焊接实验[J].爆炸与冲击, 2012, 32(1):103-107. [15] 何小松.热处理对钛钢复合板界面硬度的影响[J].科技创新与应用, 2016(28):12-13. -
点击查看大图
计量
- 文章访问数: 96
- HTML全文浏览量: 6
- PDF下载量: 8
- 被引次数: 0
下载:
