利用真空扩散焊方法制备了铜中间层钛-钢焊接接头,并采用OM、SEM、EDS、显微硬度和拉伸试验方法,研究了铜中间层钛-钢扩散复合界面组织和性能。结果表明,Fe、Ti原子在界面处发生了互扩散,钛侧形成α-βTi＋αTi或βTi＋α-βTi＋αTi组织,钢侧发生脱碳并形成柱状晶组织;拉伸强度随扩散温度升高呈现先增加后减小的趋势,950℃、30 min扩散试样拉伸强度最高,达到262 MPa;拉伸断口具有塑性断裂区与脆性断裂区特征,并在断口上检测出TiC相。
Diffusion bonded joints of titanium /Cu interlayer/ low carbon steel were obtained by vacuum diffusion welding.Microstructure and properties of the bonded joints between titanium and low carbon steel with copper interlayer were examined by means of OM,SEM,EDS,microhardness and tensile tests.The results show that interdiffusion of Fe and Ti atoms across the interface results in formation of α-β Ti ＋ α Ti or β Ti ＋ α-β Ti ＋ α Ti in the side of titanium,and the columnar grain forms in the steel side due to decarburation.Tensile strength of the joints increases first and then decreases with increase of diffusion temperature and the maximum tensile strength of 262 MPa is achieved at 950 ℃ for 30 min bonding condition.The tensile fracture surface shows ductile and brittle fracture zones and TiC phase is observed on it by XRD.
参考文献
| [1] | 于九明,孝云祯,王群骄,方晓英,崔光洙.金属层状复合技术及其新进展[J].材料研究学报,2000(01):12-16. |
| [2] | 刘晓涛,张廷安,崔建忠.层状金属复合材料生产工艺及其新进展[J].材料导报,2002(07):41-43,50. |
| [3] | 刘江.金属复合材料生产技术的现状与发展趋势[J].金属功能材料,2008(01):44-47,52. |
| [4] | 黄金昌.NKK开发钛钢轧制复合板[J].稀有金属快报,2002(06):3-5. |
| [5] | 刘润生,任连宝,汪汉臣,颜学柏,王俭,王红武,崔迎春.大面积、薄覆层钛/钢复合板爆炸-轧制工艺研究[J].稀有金属快报,2005(01):18-20. |
| [6] | 王敬忠,颜学柏,王韦琪,闫静亚,容耀,严平.带夹层材料的爆炸-轧制钛钢复合板工艺研究[J].稀有金属材料与工程,2010(02):309-313. |
| [7] | 刘德义,陈汝淑,刘宝岩,李忠文,刘世程.钛-钢扩散复合界面组织与结合强度[J].材料热处理学报,2007(z1):239-242. |
| [8] | M. Ghosh;A. Laik;K. Bhanumurthy;G. B. Kale;J. Krishnan;S. Chatterjee .Evolution of interface microstructure and strength properties in titanium-stainless steel diffusion bonded transition joints[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2004(12):1578-1584. |
| [9] | S. Kundu;S. Chatterjee .Effect of temperature on formation of reaction products and strength properties of titanium and stainless steel joints using copper interlayer[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2007(3):368-373. |
| [10] | Kundu S;Chatterjee S .Microstructure and mechanical properties of diffusion bonded joints between titanium and stainless steel with copper interlayer[J].Science and Technology of Welding and Joining,2007,12(07):572-578. |
| [11] | Kundu S;Chatterjee S;Olson D et al.Interface microstructure and strength properties of the diffusion-bonded joints of titanium I Cu Interlayer I stainless steel[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2008,39(09):2106-2114. |
| [12] | M. Eroglu;T. I. Khan;N. Orhan .Diffusion bonding between Ti-6Al-4V alloy and microduplex stainless steel with copper interlayer[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2002(1):68-72. |
| [13] | S. Kundu;S. Chatterjee .Effect of bonding temperature on interface microstructure and properties of titanium-304 stainless steel diffusion bonded joints with Ni interlayer[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2006(10):1201-1207. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%