利用真空轧制复合技术900℃时制备TA2与304L不锈钢的复合钢板,分别研究直接复合及加入Nb夹层后复合界面的组织与性能,分析 Nb 夹层对复合板组织及性能的影响。结果表明:直接复合的 Ti-不锈钢复合板界面生成了Fe2Ti、Cr2Ti及NiTi2等多种金属间化合物,严重削弱界面的结合强度,界面的剪切强度仅为128 MPa,性能较差。加入Nb层后,Ti与不锈钢之间的互扩散被完全阻止,且Nb夹层与两侧金属均产生良好的结合;Nb、Ti界面未生成任何金属间化合物,Nb与不锈钢界面有FeNb金属间化合物生成;界面剪切强度获得大幅提升,达到338 MPa,性能优良。
The vacuum hot-roll bonding was carried out between TA2 titanium (Ti) and 304L stainless steel (SS) at 900 ℃. The vacuum hot-rolling bonding without interlayer and with niobium (Nb) interlayer was investigated, respectively. The microstructure and property of the interfaces were in-depth studied and the effect of the Nb interlayer was analyzed. The results show that many intermetallic compounds (IMC) are formed on the direct bonded Ti-SS interface, such as Fe2Ti, Cr2Ti and NiTi2. These IMC seriously weaken the shear strength, and lower shear strength of about 128 MPa is achieved. Inserting the Nb interlayer can effectively prevent the interdiffusion between Ti and SS. No IMC is found at Ti-Nb interface while IMC of FeNb is found at Nb-SS interface. The shear strength of about 338 MPa is achieved. The property of the clad plate is substantially enhanced by inserting Nb interlayer.
参考文献
[1] | LUTJERING G;WILLIAMS J C.Titanium[M].Berlin:Springer-Verlag,2007:11-23. |
[2] | FUMIO K .Analytical study on the Fe/Ti interface in titanium-clad steels[J].Surface and Interface Analysis,1988,12(03):203-210. |
[3] | 方吉祥,赵康,刘继峰,谷臣清.钛/不锈钢爆炸焊接接头退火性能的研究[J].材料热处理学报,2002(02):4-7. |
[4] | S.A.A. Akbari Mousavi;P. Farhadi Sartangi .Experimental Investigation Of Explosive Welding Of Cp-titanium/aisi 304 Stainless Steel[J].Materials & design,2009(3):459-468. |
[5] | 周德敬,尹林,张新明,唐建国,刘星兴.轧制复合铝/不锈钢界面金属间化合物的生长动力学[J].中国有色金属学报,2012(09):2461-2468. |
[6] | Guangming Xie;Zongan Luo;Guanglei Wang .Interface Characteristic and Properties of Stainless Steel/HSLA Steel Clad Plate by Vacuum Rolling Cladding[J].Materials transactions,2011(8):1709-1712. |
[7] | B. Qin;G.M. Sheng;J.W. Huang .Phase transformation diffusion bonding of titanium alloy with stainless steel[J].Materials Characterization,2006(1):32-38. |
[8] | Kundu, S.;Sam, S.;Chatterjee, S. .Evaluation of interface microstructure and mechanical properties of the diffusion bonded joints of Ti-6Al-4V alloy to micro-duplex stainless steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011(15):4910-4916. |
[9] | 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. |
[10] | 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. |
[11] | Sukumar KUNDU;Subrata CHATTERJEE .Evolution of Interface Microstructure and Mechanical Properties of Titanium/304 Stainless Steel Diffusion Bonded Joint Using Nb Interlayer[J].ISIJ International,2010(10):1460-1465. |
[12] | ASTM B898-2011.Standard specification for reactive and refractory metal clad plate[S]. |
[13] | 崔忠圻;谭耀春.金属学与热处理[M].北京:机械工业出版社,2007 |
[14] | KALE G B;PATIL R V;GAWADE P S .Interdiffusion studies in titanium-304 stainless steel system[J].Journal of Nuclear Materials,1998,257(01):44-50. |
[15] | MASSALAKI T B.Binary alloy phase diagrams[M].Ohio:ASM International,1996 |
[16] | GB/T 8546-2007.钛-不锈钢复合板[S]. |
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