纯铁中间层对热轧钛/钢复合板性能的影响
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摘要
针对钛和碳钢热轧复合时,复合界面容易形成脆性化合物的问题,通过添加工业纯铁为中间层材料,将坯料在850℃下加热2 h后进行热轧复合,通过光学显微镜、扫描电子显微镜观察以及拉伸、弯曲和拉剪试验,研究纯铁中间层对复合板界面微观形貌和力学性能的影响。结果表明,在压下率较小时,加入纯铁中间层有利于提高钛/钢复合板的复合强度;在压下率较大时,加入纯铁中间层和不加入纯铁中间层均能达到较高的复合强度;加入纯铁中间层可以有效改善钛/钢复合板弯曲性能和拉伸性能。
In the light of the hot-roll bonding of titanium and carbon steel,brittle compounds are easily formed at the composite interface. A titanium and a carbon steel were bonded by vacuum hot rolling using a pure iron interlayer. The microstructure and properties of the composite plate were investigated by optical microscopy and scanning electron microscopy,as well as tensile-shear,bending and tensile tests. The results showed that,at heating temperature of850 ℃,the bonding strength of the titanium clad steel plate could be improved by adding the pure iron interlayer at low reduction ratio. At heavy reduction ratio,high bonding strength could be achieved with or without the pure iron interlayer. Including the pure iron interlayer improved the bending and tensile properties of the titanium clad steel plate appreciably.
In the light of the hot-roll bonding of titanium and carbon steel,brittle compounds are easily formed at the composite interface. A titanium and a carbon steel were bonded by vacuum hot rolling using a pure iron interlayer. The microstructure and properties of the composite plate were investigated by optical microscopy and scanning electron microscopy,as well as tensile-shear,bending and tensile tests. The results showed that,at heating temperature of850 ℃,the bonding strength of the titanium clad steel plate could be improved by adding the pure iron interlayer at low reduction ratio. At heavy reduction ratio,high bonding strength could be achieved with or without the pure iron interlayer. Including the pure iron interlayer improved the bending and tensile properties of the titanium clad steel plate appreciably.
引文
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[2] Ha J S,Hong S I. Deformation and fracture of Ti/439 stainless steel clad composite at intermediate temperatures[J]. Materials Science and Engineering A,2016,651:805.
[3] SU Hang,LUO Xiao-bing,CHAI Feng,et al. Manufacturing technology and application trends of titanium clad steel plates[J]. Journal of Iron and Steel Research,International,2015,22(11):977.
[4]史亚鸣,黄海广,李志敏,等.带钢热连轧机生产TA10钛合金带的轧制工艺[J].中国冶金,2017,27(8):41.(SHI Ya-ming,HUANG Hai-guang,LI Zhi-min,et al. Rolling technique of TA10 titanium alloy strips produced by hot continuous rolling mill for steel strips[J]. China Metallurgy,2017,27(8):41.)
[5] Velmurugan C,Senthilkumar V,Sarala S,et al. Low temperature diffusion bonding of Ti-6Al-4V and duplex stainless steel[J]. Journal of Materials Processing Technology,2016,234:272.
[6] Kahraman N,Gülen?B,Findik F. Joining of titanium/stainless steel by explosive welding and effect on interface[J]. Journal of Materials Processing Technology,2005,169(2):127.
[7] XIE M X,ZHANG L J,ZHANG G F,et al. Microstructure and mechanical properties of CP-Ti/X65 bimetallic sheets fabricated by explosive welding and hot rolling[J]. Materials and Design,2015,87:181.
[8]黄淑梅.热轧生产钛钢复合板的技术进展[J].钛工业进展,2002(6):45.(HUANG Shu-mei. Technical progress in the production of hot-roll bonding titanium clad steel plate[J]. Titanium Industry Progress,2002(6):45.)
[9]代响林,刘宝玺,马久乐,等.真空热轧法制备不锈钢复合板组织和力学性能[J].钢铁,2017,52(2):65.(DAI Xiang-lin,LIU Bao-xi,MA Jiu-le,et al. Microstructure and mechanical properties of stainless steel clad plate fabricated by vacuum hot rolling[J]. Iron and Steel,2017,52(2):65.)
[10]骆宗安,陈晓峰,谢广明,等.真空轧制825合金/X65钢复合板的组织性能[J].钢铁,2017,52(3):64.(LUO Zong-an,CHEN Xiao-feng,XIE Guang-ming,et al. Microstructure and mechanical property of vacuum hot-rolled 825 alloy/X65 pipeline steel clad plate[J]. Iron and Steel,2017,52(3):64.)
[11] Momono T,Enjo T,Ikeuchi K. Effect of carbon content on the diffusion bonding of iron and steel to titanium[J]. ISIJ International,1990,30(11):978.
[12] Saboktakin M,Razavi G R,Monajati H. The investigate metallurgical properties of roll bonding titanium clad steel[J]. International Journal of Applied Physics and Mathematics,2011,1(3):177.
[13] YAN J C,ZHAO D S,WANG C W,et al. Vacuum hot roll bonding of titanium alloy and stainless steel using nickel interlayer[J]. Materials Science and Technology,2013,25(7):914.
[14] LUO Z A,WANG G L,XIE G M,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,2013,26(6):754.
[15] 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.
[16]王敬忠,颜学柏,王韦琪,等.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,2010,39(2):309.(WANG Jing-zhong,YAN Xue-bai,WANG Wei-qi,et al. Titanium cladding steel plates with interlayer by explosion and rolling bonding[J]. Rare Metal Materials and Engineering,2010,39(2):309.)
[17]曾周燏,江姗,李东晖. TMCP工艺轧制桥梁用不锈钢复合板的组织与性能[J].中国冶金,2017,27(6):19.(ZENG Zhouyu,JIANG Shan,LI Dong-hui. Microstructures and properties of stainless steel clad plate used for bridge rolled by thermal mechanical control process[J]. China Metallurgy,2017,27(6):19.)
[18]王小勇,张海,刘建明,等.热轧不锈钢复合板力学性能及工艺优化[J].中国冶金,2018,28(7):24.(WANG Xiao-yong,ZHANG Hai,LIU Jian-ming,et al. Mechanical properties and process optimization of hot rolled stainless clad steel plate[J].China Metallurgy,2018,28(7):24.)
[19]蒋建华,丁毅,单爱党.冷轧工业纯钛的微观组织及力学性能[J].中国有色金属学报,2010,20(s1):58.(JIANG Jian-hua,DING Yi,SHAN Ai-dang. Microstructure and mechanical properties of commercial purity Ti rolled at room temperature[J].The Chinese Journal of Nonferrous Metals,2010,20(s1):58.)