黄钊,何维均,陈泽军

• 1:重庆大学材料科学与工程学院

摘要(Abstract)：

采用热轧复合法制备了TA2/不锈钢/Q235复合板,并对其开展了不同温度的轧后退火处理。利用扫描电镜、能谱以及X射线衍射等分析了退火温度对复合板界面附近微观组织、金属间化合物等特征的影响。通过显微硬度计和平面内压缩试验研究了退火温度对复合板变形以及力学性能的影响。结果表明:从不锈钢侧到钛侧,界面依次由σ相(富Cr的Fe基固溶体)、χ相(富Cr的TiFe_2相)、TiCr_2+TiFe_2、TiFe等化合物组成。随着退火温度的升高,σ相和TiFe的层厚相较于χ相和TiCr_2+TiFe_2增加更明显。显微硬度测试表明,随着退火温度的升高,Q235层硬度逐渐降低,而Ti层硬度则是先降低后升高,硬度升高主要与元素扩散有关。平面内压缩过程中,会发生TA2与不锈钢之间的层间开裂,且随着退火温度的升高,层间开裂越早,这主要与越厚的金属间化合物易萌生裂纹有关。

关键词(KeyWords)： TA2/不锈钢/Q235复合板;扩散;金属间化合物层;界面失效

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51971041)

作者(Author): 黄钊,何维均,陈泽军

DOI: 10.13289/j.issn.1009-6264.2021-0230

参考文献(References)：

• [1]Liu J G,Caiw C,Liu L,et al.Investigation of interfacial structure and mechanical properties of titanium clad steel sheets prepared by a brazing-rolling process[J].Materials Science and Engineering A,2017,703:386-398.
• [2]Yang X,Shi C G,Fang Z H,et al.Application countermeasures of the manufacturing processes of titanium-steel composite plates[J].Materials Research Express,2018,6(2):026519.
• [3]Banerjee D,Williams J C.Perspectives on titanium science and technology[J].Acta Materialia,2013,61(3):844-879.
• [4]Li B X,Chen Z J,He W J,et al.Effect of interlayer material and rolling temperature on microstructures and mechanical properties of titanium/steel clad plates[J].Materials Science and Engineering A,2019,749:241-248.
• [5]Kim Y K,Pouraliakbar H,Hong S I.Effect of interfacial intermetallic compounds evolution on the mechanical response and fracture of layered Ti/Cu/Ti clad materials[J].Materials Science and Engineering A,2020,772:138802.
• [6]Kundu S,Chatterjee S.Characterization of diffusion bonded joint between titanium and 304 stainless steel using a Ni interlayer[J].Materials Characterization,2008,59(5):631-637.
• [7]吴承建,陈国良,强文江.金属材料学[M].北京:冶金工业出版社,2009.WU Chen-jian,CHEN Guo-liang,QIANG Wen-jiang.Metallic Materials Science[M].Beijing:Metallurgical Industry Press,2009.
• [8]Guo F,Zhou X,Li G,et al.Structural,mechanical,electronic and thermodynamic properties of cubic TiC compounds under different pressures:A first-principles study[J].Solid State Communications,2020,311:113856.
• [9]周军.TiFe2 laves相金属间化合物的研究[D].湘潭:湘潭大学,2007.ZHOU Jun.The research of TiFe laves phase intermetallics[D].Xiangtan:Xiangtan University,2007.
• [10]Nong Z S,Zhu J C,Cao Y,et al.A first-principles study on the structural,elastic and electronic properties of the C14 Laves phase compounds TiX2 (X=Cr,Mn,Fe)[J].Physica B:Condensed Matter,2013,419:11-18.
• [11]Xu C,Zhu W F.Transformation mechanism and mechanical properties of commercially pure titanium[J].Transactions of Nonferrous Metals Society of China,2010,20(11):2162-2167.
• [12]李博新.钛/钢复合板界面结构及其组织性能调控[D].重庆:重庆大学,2019.LI Bo-xin.Interfacial structure and regulation of microstructure and properties in Ti/Steel clad plate[D].Chongqing:Chongqing University,2019.
• [13]Ghosh M,Chatterjee S.Diffusion bonded transition joints of titanium to stainless steel with improved properties[J].Materials Science and Engineering A,2003,358(1/2):152-158.
• [14]Ghosh M,Bhanumurthy K,Kale G,et al.Diffusion bonding of titanium to 304 stainless steel[J].Journal of Nuclear Materials,2003,322(2/3):235-241.
• [15]Aleman B,Guti rrez L,Urcola J.Interface microstructures in diffusion bonding of titanium alloys to stainless and low alloy steels[J].Materials Science and Technology,1993,9(8):633-641.
• [16]Orhan N,Khan T,Erogˇlu M.Diffusion bonding of a microduplex stainless steel to Ti-6Al-4V[J].Scripta Materialia,2001,45(4):441-446.
• [17]Nakajima H,Koiwa M.Diffusion in titanium[J].ISIJ International,1991,31(8):757-766.
• [18]Li B,He W,Chen Z,et al.Evolution of interface and collaborative deformation between Ti and steel during hot roll bonding[J].Materials Characterization,2020,164:110354.
• [19]Kundu S,Sam S,Chatterjee S.Interface microstructure and strength properties of Ti-6Al-4V and microduplex stainless steel diffusion bonded joints[J].Materials and Design,2011,32(5):2997-3003.
• [20]Yu C,Xiao H,Yu H,et al.Mechanical properties and interfacial structure of hot-roll bonding TA2/Q235B plate using DT4interlayer[J].Materials Science and Engineering A,2017,695:120-125.
• [21]Luo Z,Wang G,Xie G,et al.Interfacial microstructure and properties of a vacuum hot roll-bonded titanium-stainless steel clad plate with a niobium interlayer[J].Acta Metallurgica Sinica (English Letters),2013,26(6):754-760.

文章评论(Comment)：