Micro laser welding of dissimilar materials between TiNi shape memory alloy and titanium alloy

CHEN Yu-hua; GE Jun-wei; LIU Fen-cheng; KE Li-ming

doi:10.3788/OPE.20142208.2075

您当前的位置：

首页 >

文章列表页 >

Micro laser welding of dissimilar materials between TiNi shape memory alloy and titanium alloy

更新时间：2020-08-13

- Micro laser welding of dissimilar materials between TiNi shape memory alloy and titanium alloy
- Optics and Precision Engineering Vol. 22, Issue 8, Pages: 2075-2080(2014)
- 作者机构：
  
  南昌航空大学航空制造工程学院,江西南昌,330063
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20142208.2075
  CLC： TG456.7
- Received：06 November 2013，
  
  Revised：21 January 2014，
  
  Published：25 August 2014
- 稿件说明：
移动端阅览
陈玉华, 戈军委, 刘奋成等. TiNi形状记忆合金/钛合金异种材料激光焊[J]. 光学精密工程, 2014,22(8): 2075-2080

CHEN Yu-hua, GE Jun-wei, LIU Fen-cheng etc. Micro laser welding of dissimilar materials between TiNi shape memory alloy and titanium alloy[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 2075-2080
陈玉华, 戈军委, 刘奋成等. TiNi形状记忆合金/钛合金异种材料激光焊[J]. 光学精密工程, 2014,22(8): 2075-2080 DOI： 10.3788/OPE.20142208.2075.

CHEN Yu-hua, GE Jun-wei, LIU Fen-cheng etc. Micro laser welding of dissimilar materials between TiNi shape memory alloy and titanium alloy[J]. Editorial Office of Optics and Precision Engineering, 2014,22(8): 2075-2080 DOI： 10.3788/OPE.20142208.2075.

摘要

由于TiNi合金与钛合金的物理和化学性能差异较大，故其焊接性较差，焊缝区易形成大量的金属间化合物并产生裂纹。为实现上述材料的良好连接、提高接头性能，本文对采用激光焊连接0.2 mm厚TiNi形状记忆合金和TC

钛合金异种材料进行了探索。分别采用直接对接焊和手工填丝焊的方法，研究了焊接接头的微观组织和力学性能。结果表明，直接对接焊时焊缝中心产生了纵向裂纹；手工填丝焊则通过合适的焊接工艺，改善了焊缝成形，避免了裂纹的产生。较优的焊接工艺参数为功率百分比18%、脉冲宽度3 ms、脉冲频率3 Hz；在界面区，Ni与TC

形成的过渡层宽度约为2 μm，Ni与TiNi形成的过渡层宽度约为0.5 μm。接头最大抗拉强度为332 MPa，断裂位置发生在靠近TiNi侧的熔合线附近。

Abstract

The physical and chemistry properties of TiNi shape memory alloy and TC

titanium alloy are quite different

so the weldability is poor and a number of intermetallic compounds and cracks will produce in the weld seam. To achieve good joining of TiNi shape memory alloy and TC

titanium alloy and improve the welded joint properties

this paper explores the micro laser welding of dissimilar materials between TiNi shape memory alloy and titanium alloy. The butt welding method and manual welding filler wire method are carried out for 0.2 mm thick TiNi shape memory alloy and TC

titanium alloy to obtain the microstructure and mechanical properties. The results show that longitudinal cracks are brought out in butt welding

however

the appropriate welding process for manual welding filler wire improves weld forming and avoids cracks. The optimum welding parameters are the power percentage 8%

pulse width of 3 ms

and the pulse frequency of 3 Hz. Moreover

the transition width formed by Ni and TC

is about 2 μm

and that formed by Ni and TiNi is about 0.5 μm. In the combined surface

transition is relatively weak link connector

the hardness is up to 650 HV with the maximum tensile strength of 332 MPa

and the fracture location occurs near TiNi side by the fusion line.

关键词

Keywords

references

于东, 张博明, 梁军, 等. 形状记忆合金在航空工业中的应用研究进展[J]. 金属功能材料, 2007, 14(6):27-32. YU D, ZHANG B M, LIANG J, et al.. Advances of shape memory alloys in aviation industry[J]. Metallic Functional Materials, 2007, 14(6):27-32. (in Chinese)

MOOCHUL S. Seismic Retrofit and Repair of Reinforced Concrete Bridge Columns using Shape Momory Alloy spirals[M]. Urbana:Illino,2012.

MORGAN N B. Medical shape memory alloy applications—the market and its products [J]. Materials Science and Engineering A, 2004, 378:16-23.

LV S X, YANG Z L, DONG H G. Welding of shape memory alloy to stainless steel for medical occluder [J]. Trans. Nonferrous Met. Soc. China, 2013,23:156-160.

曹运红. 形状记忆合金的发展及其在导弹与航天领域的应用[J]. 飞航导弹, 2010, (10): 60-63. CAO Y H. The development of shape memory alloy and its applications in missile and aerospace field[J]. Winged Missiles Journal, 2010, (10): 60-63.(in Chinese)

高滨. 形状记忆合金在航天器分离机构上的应用[J]. 航天返回与遥感, 2005, 26(1): 48-52. GAO B. The applications of shape memory alloy on the the spacecraft separation mechanism [J]. Spacecraft Recovery & Remote Sensing, 2005, 26(1):48-52.(in Chinese)

CHAU E T F, FRIEND C M. Technical and economic appraisal of shape memory alloys for aerospace applications [J]. Materials Science and Engineering A, 2006,438-440:589-596.

吴东江, 王占宏, 马广义, 等. 脉冲激光焊接Hastelloy C-276合金的熔池流动传热特性分析[J]. 光学精密工程, 2012, 20(3): 543-549. WU D J, WANG ZH H, MA G Y, et al.. Analysis of fluid flow and heat transfer in weld pool during pulsed laser welding Hastelloy C-276 alloys[J]. Opt. Precision Eng., 2012, 20(3): 543-549.(in Chinese)

郭玉泉, 吴东江, 马广义, 等. 夹具拘束距离对Hastelloy C-276薄板脉冲激光焊接变形的影响[J]. 光学精密工程, 2012, 20(11): 2465-2471. GUO Y Q, WU D J, MA G Y, et al.. Influence of fixture restraint distance on pulsed laser welding distortion of Hastelloy C-276 thin sheet[J]. Opt. Precision Eng., 2012, 20(11): 2465-2471.(in Chinese)

LI H M, SUN D Q, CAI X L, et al.. Laser welding of TiNi shape memory alloy and stainless steel using Co filler metal [J]. Optics & Laser Technology, 2013, 45:453-460.

Views

174

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰