Preparation and Interface Characterization of Fe-Al Micro-laminated Composites

doi:10.12068/j.issn.1005-3026.2021.11.006

Abstract

Abstract: Layers of pure iron and pure aluminum sheets were alternately stacked， and the Fe-Al metal-intermetallic-laminate(MIL)composites were prepared by the process of hot-rolling compound， cold-rolling reduction and alloying treatment. The effects of alloying temperature on the microstructure， phase composition， phase transformation， and mechanical properties of the Fe-Al MIL composite were investigated. The results show that the prepared Fe-Al MIL composite has a good Fe/Al interface bonding state. As the alloying temperature increases， the thickness of the compound layer increases. When the temperature is lower than the Fe-Al solid/semi-solid reaction temperature of 655℃， Fe₂Al₅ and FeAl are the main phases in the compound layers. When the temperature is above 655℃， a small amount of FeAl₃ and Fe₃Al appear alternately at the interface between the compound layer and the Fe matrix.The DSC curve shows there are three exothermic peaks of ~559， ~571 and ~667℃， which represent the phase transitions of FeAl₃， Fe₂Al₅， and FeAl， respectively. The mechanical properties of the Fe-Al MIL composites obtained after solid-solid and solid-liquid alloying are poor， and both are prone to delamination fracture. The best performance of Fe-Al MIL composite can be achieved after the solid/semi-solid alloying treatment.

Key words: micro-laminated composite; hot-rolling compound; cold-rolling reduction; alloying; interface

CLC Number:

TG141
TG146

ZU Guo-yin， ZHANG Ying， WEI Zhen-xiong， MAN Ting. Preparation and Interface Characterization of Fe-Al Micro-laminated Composites[J]. Journal of Northeastern University(Natural Science), 2021, 42(11): 1554-1561.

References

[1]Sauthoff G.Multiphase intermetallic alloys for structural applications［J］.Intermetallics， 2000，8(9/10/11):1101-1109.
[2]Wang Y，Vecchio K S.Microstructure evolution in a martensitic 430 stainless steel-Al metallic-intermetallic laminate(MIL)composite ［J］.Materials Science and Engineering:A，2015，643:72-85.
[3]Wang Y，Vecchio K S.Microstructure evolution in Fe-based-aluminide metallic-intermetallic laminate(MIL)composites ［J］.Materials Science and Engineering:A， 2016，649:325-337.
[4]叶恒强，郭建亭.高性能金属间化合物结构材料的关键基础性问题［J］.中国科学基金，2000，53(2):117-121.(Ye Heng-qiang，Guo Jian-ting.Key basic problems of high performance intermetallic structural materials ［J］.Bulletin of National Natural Science Foundation of China，2000，53(2):117-121.)
[5]林栋梁.高温金属间化合物研究的新进展［J］.上海交通大学学报，1998，32(2):95-109.(Lin Dong-liang.Recent advances in high-temperature ordered intermetallics ［J］.Journal of Shanghai Jiaotong University，1998，32(2):95-109.)
[6]Kobayashi S，Yakou T.Control of intermetallic compound layers at interface between steel and aluminum by diffusion-treatment［J］.Materials Science and Engineering:A， 2002，338(1/2):44-53.
[7]郭建亭，周兰章，李谷松.高温结构金属间化合物及其强韧化机理［J］.中国有色金属学报，2011，21(1):1-34.(Guo Jian-ting，Zhou Lan-zhang，Li Gu-song.High temperature structural intermetallics and their strengthening-softening mechanisms ［J］.The Chinese Journal of Nonferrous Metals，2011，21(1):1-34.)
[8]Clegg W J，Kendallk K，Alford N M，et al.A simple way to make tough ceramics ［J］.Nature，1990，347(6292):445-457.
[9]Rawers J C，Alman D E，Fracture characteristics of metal/intermetallic laminar composites produced by reaction sintering and hot-pressing ［J］.Composites Science and Technology，1995，54(4):379-384.
[10]Alaman D E，Dogan C P，Hawk J A，et al.Processing，structure and properties of metal-intermetallic layered composites ［J］.Materials Science and Engineering Structual Materials Properties Microstructure and Processing，1995，192:624-632.
[11]Cherukara M J，Vishnu K G，Strachan A.Role of nanostructure on reaction and transport in Ni/Al intermolecular reactive composites ［J］.Physical Review B，2012，86(7):075470.
[12]Assari A H，Eghbali B.Solid state diffusion bonding characteristics at the interfaces of Ti and Al layers ［J］.Journal of Alloys and Compounds，2019，773:50-58.
[13]Pei Y B，Huang T，Chen F X，et al.In-situ observation of crack evolution in Ti/Al laminated composite ［J］.Composite Interfaces，2020，27(5):435-448.
[14]郭鑫，马勤，季根顺，等.金属间化合物基叠层复合材料研究进展［J］.材料导报，2007，21(6):66-69.(Guo Xin，Ma Qin，Ji Gen-shun，et al.The research evolution of intermetallic based laminated composites ［J］.Materials Reports，2007，21(6):66-69.)
[15]Wang H R，Kou R，Vecchio K S.Design，fabrication and optimization of FeAl-FeAl₂ eutectoid metallic-intermetallic laminate(MIL)composites ［J］.Materialia，2020，13:100859.
[16]Cao Y，Zhang D D，Zhou P J，et al.Reinforcing effect of laminate structure on the fracture toughness of Al₃Ti intermetallic ［J］.International Journal of Minerals Metallurgy and Materials，2020，27(5):678-686.
[17]Sun Y，Lin P，Yuan S J.A novel method for fabricating NiAl alloy sheet components using laminated Ni/Al foils ［J］.Materials Science and Engineering:A，2019，754:428-436.
[18]Shahverdi H R，Ghomashchi M R，Shabestari S，et al.Microstructural analysis of interfacial reaction between molten aluminium and solid iron［J］.Journal of Materials Processing Technology， 2002，124(3):345.
[19]宋群玲，孙勇，范启印.钢-铝轧制复合材料界面生成化合物的热力学计算及分析［J］.热加工工艺，2012，41(10):114-116，120.(Song Qun-ling，Sun Yong，Fan Qi-yin.Thermo-dynamic calculation and experimental analysis on interface compounds of steel-aluminum rolling composite ［J］.Material and Heat Treatment，2012，41(10):114-116，120.)
[20]Bouayad A，Geoometta C，Belkebir A，et al.Kinetic interactions between solid iron and molten aluminium［J］.Materials Science and Engineering:A，2003，363(1):53-61.
[21]Ricgards R W，Jones R D，Clements P D，et al.Metallurgy of continuous hot dip aluminizing［J］.International Materials Reviews，1994，39(5):191-212.
[22]Buhadur A，Mohanty O N.Structual studies of hot dip aluminized coatings on mild steel［J］.Materials Transactions JIM，1991，32(11):1053-1061.
[23]王平，谢佩佩.钢-铝轧制复合界面化合物的抑制机理［J］.中国有色金属学报，2010，20(sup1):284-288.(Wang Ping，Xie Pei-pei.Restraining mechanism of compound of steel-aluminum rolling bonding composite board ［J］.The Chinese Journal of Nonferrous Metals，2010，20(sup1):284-288.)
[24]Gao H Y，He Y H，Shen P Z，et al.Porous FeAl intermetallics fabricated by elemental powder reactive synthesis ［J］.Intermetallics，2009.17(12):1041-1046.
[25]Hao G L，Li Y C，Wang X F，et al.Fe-Al phase formation studied by internal friction during heating process ［J］.Chinese Physics Letters，2020，37(3):036102.
[26]Gedevanishvili S，Deevi S C.Processing of iron aluminides by pressureless sintering through Fe+Al elemental route ［J］.Materials Science and Engineering:A，2002，325(1):163-176.