真空烧结制备Ti-Al_3Ti叠层复合材料的组织和性能
|
摘要
采用真空热压烧结制备了Ti-Al_3Ti叠层复合材料,利用扫描电镜(SEM)、能谱分析仪(EDS)、X射线衍射(XRD)等研究了其在不同烧结温度和烧结时间下的显微组织及性能。结果表明:665℃烧结制备的Ti-Al_3Ti叠层复合材料组织致密,反应产物仅为Al_3Ti,其界面中存在隧道裂纹和剥层裂纹;710℃烧结制备的Ti-Al_3Ti叠层复合材料中出现了大量孔洞,且孔洞随烧结时间增加难以消除,其界面反应产物初生相为Al_3Ti,随后依次生成Al_2Ti、AlTi、AlTi_3;665℃烧结制备的Ti-Al_3Ti叠层复合材料的压缩力学性能高于710℃烧结制备的,其原因是710℃烧结制备的Ti-Al_3Ti叠层复合材料呈伪软化效应。
Ti-Al_3Ti laminate composites were prepared by vacuum hot pressing sintering, and microstructure and properties of the Ti-Al_3Ti laminate composites at different sintering temperatures and sintering time were studied by means of scanning electron microscopy(SEM), energy dispersive spectroscopy(EDS) analysis, and X-ray diffraction(XRD). The results show that the microstructure of the Ti-Al_3Ti laminate composites sintered at 665 ℃ is compact, the reaction product is Al_3Ti, and the tunnel crack and delamination crack are observed in the interface of the composites. A large number of pores appear in the Ti-Al_3Ti laminate composites sintered at 710 ℃, and the pores cannot be eliminated with the increase of sintering time; the primary phase of the interfacial reaction product is Al_3Ti, and then Al_2Ti, AlTi and AlTi_3 are formed in turn. The compressive mechanical properties of the Ti-Al_3Ti laminate composites sintered at 665 ℃ are higher than those sintered at 710 ℃, which is due to the pseudo-softening effect of the Ti-Al_3Ti laminate composites sintered at 710 ℃.
Ti-Al_3Ti laminate composites were prepared by vacuum hot pressing sintering, and microstructure and properties of the Ti-Al_3Ti laminate composites at different sintering temperatures and sintering time were studied by means of scanning electron microscopy(SEM), energy dispersive spectroscopy(EDS) analysis, and X-ray diffraction(XRD). The results show that the microstructure of the Ti-Al_3Ti laminate composites sintered at 665 ℃ is compact, the reaction product is Al_3Ti, and the tunnel crack and delamination crack are observed in the interface of the composites. A large number of pores appear in the Ti-Al_3Ti laminate composites sintered at 710 ℃, and the pores cannot be eliminated with the increase of sintering time; the primary phase of the interfacial reaction product is Al_3Ti, and then Al_2Ti, AlTi and AlTi_3 are formed in turn. The compressive mechanical properties of the Ti-Al_3Ti laminate composites sintered at 665 ℃ are higher than those sintered at 710 ℃, which is due to the pseudo-softening effect of the Ti-Al_3Ti laminate composites sintered at 710 ℃.
引文
[1] 郭训忠,范敏郁,刘忠利,等.钛/铝/钛层状复合材料的爆炸复合制备及后续热压处理研究[J].稀有金属材料与工程,2017,46(5):1192-1196.GUO Xun-zhong,FAN Min-yu,LIU Zhong-li,et al.Plosive cladding and hot pressing of Ti/Al/Ti laminates[J].Rare Metal Materials and Engineering,2017,46(5):1192-1196.
[2] Zelepugin S A,Shpakov S S.Failure of metallic-intermetallic multilayered composite under high-velocity impact[J].Journal of Composite Mechanics and Design,2009,15(3):369-382.
[3] Alman D E,Do?n C P,Hawk J A,et al.Processing,structure and properties of metal-intermetallic layered composites[J].Materials Science and Engineering A,1995,S192-193(94):624-632.
[4] Rawers J C,Alman D E.Fracture characteristics of metal/intermetallic laminar composites produced by reaction sintering and hot processing[J].Composites Science and Technology 1995,54 (4):379-384.
[5] Peng L M,Wang J H,Li H,et al.Synthesis and microstructural characterization of Ti-Al3Ti metal-intermetallic laminate (MIL)composites[J].Scripta Materialia,2005,52(3):243-248.
[6] 盖鹏涛,吴为,曾元松.热压复合制备Ti -Al3Ti层状复合材料组织结构研究[J].材料科学与工艺,2013,21(2):45-49.GAI Peng-tao,WU Wei,ZENG Yuan-song.Microstructure analysis of Ti-Al3Ti metal-intermetallic laminate (MIL) composites synthesized by hot-press sintering[J].Materials Science and Technology,2013,21(2):45-49.
[7] Harach D J,Vecchio K S.Microstructure evolution in metal-Intermetallic laminate (MIL) composites synthesized by reactive foil Sintering in air[J].Metallurgical and Materials Transactions A,2001,32(6):1493-1505.
[8] Rohatgi A,Harach D J,Vecchio K S,et al.Resistance-curve and fracture behavior of Ti-Al3Ti metallic-intermetallic laminate (MIL) composites[J].Acta Materialia,2003,51(50):2933-2957.
[9] Vecchio K S,Jiang F,Kulin R M,et al.Effects of ductile phase volume fraction on the mechanical properties of Ti-Al3Ti metal-intermetallic laminate (MIL) composites[J].Materials Science and Engineering A,2011,528(7/8):3134-3146.
[10] Patselov A M,Rybin V V,Grinberg B A,et al.Synthesis and properties of Ti-Al laminated composites with an intermetallic layer[J].Russian Metallurgy (Metally),2011,356:356-360.
[11] Romberg J,Freudenberger J,Bauder H,et al.Ti/Al multi-layered sheets:Accumulative roll bonding (Part A)[J].Metal,2016,6(2):1-14.
[12] Yang D,Pavel C,Peter H,et al.Ultrafine equiaxed-grain Ti/Al composite produced by accumulative roll bonding[J].Scripta Materialia,2010,62 (5):321-324.
[13] 徐磊,崔玉友,杨锐.循环轧制法制备Ti/Al3Ti层状复合材料[J].稀有金属材料与工程,2005,34(3):40-42.XU Lei,CUI Yu-you,YANG Rui.Fabrication of Ti/TiAl3 laminated metal composites by cycle rolling process[J].Rare Metal Materials and Engineering,2005,34(3):40-42.
[14] Du Y,Fan G H,Yu T B,et al.Laminated Ti-Al composites:processing,structure and strength[J].Materials Science and Engineering A,2016,673:572-580.
[15] Cui X,Fan G,Geng L,et al.Growth kinetics of TiAl3 layer in multi-laminated Ti-(TiB2/Al) composite sheets during annealing treatment[J].Materials Science and Engineering A,2012,539:337-343.
[16] Lazurenko D V,Mali V I,Bataeva A A,et al.Metal-Intermetallic laminate Ti-Al3Ti composites produced by spark plasma sintering of titanium and aluminum foils enclosed in titanium shells[J].Metallurgical and Materials Transactions A,2015,46(9):4326-4334.
[17] Bataev I A,Bataev A A,Mali V I,et al. Structural and mechanical properties of metallic-Intermetallic laminate composites produced by explosive welding and annealing[J].Materials and Design,2012,35 (3):225-234.
[18] Luo J G,Acoff V L.Interfacial reactions of titanium and aluminium during diffusion welding[J].Welding Journal,2000,79(9):239-243.
[19] Xu L,Cui Y Y,Hao Y L,et al.Growth of intermetallic layer in multi-laminated Ti/Al diffusion couples[J].Materials Science and Engineering A,2006,435(1):638-647.
[20] Jiang Y,Deng C P,He Y H.Reactive synthesis of microporous titanium aluminide membranes[J].Materials Letters,2009,63(1):22-24.
[21] Yi H C,Petric A,Moore J J.Effect of heating rate on the combustion synthesis of Ti-Al intermetallic compounds[J].Journal of Materials Science,1992,27(24):6797-6806.
[2] Zelepugin S A,Shpakov S S.Failure of metallic-intermetallic multilayered composite under high-velocity impact[J].Journal of Composite Mechanics and Design,2009,15(3):369-382.
[3] Alman D E,Do?n C P,Hawk J A,et al.Processing,structure and properties of metal-intermetallic layered composites[J].Materials Science and Engineering A,1995,S192-193(94):624-632.
[4] Rawers J C,Alman D E.Fracture characteristics of metal/intermetallic laminar composites produced by reaction sintering and hot processing[J].Composites Science and Technology 1995,54 (4):379-384.
[5] Peng L M,Wang J H,Li H,et al.Synthesis and microstructural characterization of Ti-Al3Ti metal-intermetallic laminate (MIL)composites[J].Scripta Materialia,2005,52(3):243-248.
[6] 盖鹏涛,吴为,曾元松.热压复合制备Ti -Al3Ti层状复合材料组织结构研究[J].材料科学与工艺,2013,21(2):45-49.GAI Peng-tao,WU Wei,ZENG Yuan-song.Microstructure analysis of Ti-Al3Ti metal-intermetallic laminate (MIL) composites synthesized by hot-press sintering[J].Materials Science and Technology,2013,21(2):45-49.
[7] Harach D J,Vecchio K S.Microstructure evolution in metal-Intermetallic laminate (MIL) composites synthesized by reactive foil Sintering in air[J].Metallurgical and Materials Transactions A,2001,32(6):1493-1505.
[8] Rohatgi A,Harach D J,Vecchio K S,et al.Resistance-curve and fracture behavior of Ti-Al3Ti metallic-intermetallic laminate (MIL) composites[J].Acta Materialia,2003,51(50):2933-2957.
[9] Vecchio K S,Jiang F,Kulin R M,et al.Effects of ductile phase volume fraction on the mechanical properties of Ti-Al3Ti metal-intermetallic laminate (MIL) composites[J].Materials Science and Engineering A,2011,528(7/8):3134-3146.
[10] Patselov A M,Rybin V V,Grinberg B A,et al.Synthesis and properties of Ti-Al laminated composites with an intermetallic layer[J].Russian Metallurgy (Metally),2011,356:356-360.
[11] Romberg J,Freudenberger J,Bauder H,et al.Ti/Al multi-layered sheets:Accumulative roll bonding (Part A)[J].Metal,2016,6(2):1-14.
[12] Yang D,Pavel C,Peter H,et al.Ultrafine equiaxed-grain Ti/Al composite produced by accumulative roll bonding[J].Scripta Materialia,2010,62 (5):321-324.
[13] 徐磊,崔玉友,杨锐.循环轧制法制备Ti/Al3Ti层状复合材料[J].稀有金属材料与工程,2005,34(3):40-42.XU Lei,CUI Yu-you,YANG Rui.Fabrication of Ti/TiAl3 laminated metal composites by cycle rolling process[J].Rare Metal Materials and Engineering,2005,34(3):40-42.
[14] Du Y,Fan G H,Yu T B,et al.Laminated Ti-Al composites:processing,structure and strength[J].Materials Science and Engineering A,2016,673:572-580.
[15] Cui X,Fan G,Geng L,et al.Growth kinetics of TiAl3 layer in multi-laminated Ti-(TiB2/Al) composite sheets during annealing treatment[J].Materials Science and Engineering A,2012,539:337-343.
[16] Lazurenko D V,Mali V I,Bataeva A A,et al.Metal-Intermetallic laminate Ti-Al3Ti composites produced by spark plasma sintering of titanium and aluminum foils enclosed in titanium shells[J].Metallurgical and Materials Transactions A,2015,46(9):4326-4334.
[17] Bataev I A,Bataev A A,Mali V I,et al. Structural and mechanical properties of metallic-Intermetallic laminate composites produced by explosive welding and annealing[J].Materials and Design,2012,35 (3):225-234.
[18] Luo J G,Acoff V L.Interfacial reactions of titanium and aluminium during diffusion welding[J].Welding Journal,2000,79(9):239-243.
[19] Xu L,Cui Y Y,Hao Y L,et al.Growth of intermetallic layer in multi-laminated Ti/Al diffusion couples[J].Materials Science and Engineering A,2006,435(1):638-647.
[20] Jiang Y,Deng C P,He Y H.Reactive synthesis of microporous titanium aluminide membranes[J].Materials Letters,2009,63(1):22-24.
[21] Yi H C,Petric A,Moore J J.Effect of heating rate on the combustion synthesis of Ti-Al intermetallic compounds[J].Journal of Materials Science,1992,27(24):6797-6806.