退火温度对AZ31B/A356轧制复合板组织及性能的影响
|
摘要
通过液-固铸轧技术制备了Mg/Al复合板,随后经过退火热处理,研究退火温度对复合板微观组织及力学性能的影响。结果表明,Mg/Al复合板界面过渡区分为3个区域,靠近AZ31B一侧形成了δ-Mg和Mg_(17)Al_(12)过渡区(Ⅰ),靠近A356一侧形成α-Al和Al_3Mg_2过渡区(Ⅱ),扩散界面中间区(Ⅲ)为Mg_(17)Al_(12)、Mg_2Si和Al_3Mg_2,且Al侧过渡区宽度大于Mg侧过渡区的。界面过渡区的显微硬度明显高于两侧合金。当退火温度不高于250℃时,界面过渡区不会形成新的金属间化合物。当高于250℃时,界面过渡区的厚度随退火温度的升高呈指数型增长。在250℃退火180min后复合板的抗拉强度、屈服强度及伸长率分别达到188MPa、148MPa和10.1%,力学性能最佳。
Mg/Al composite plates were fabricated by liquid-solid cast rolling technology,which were annealed treatment subsequently.The effects of annealing temperature on the relationship between microstructure and mechanical properties of the composite plates were analyzed.The results reveal that the interfacial transition zone of Mg/Al composite plates is divided into three regions,region Ⅰ adjacent to AZ31B forming Mg transition region(δ-Mg and Mg_(17)Al_(12)),region Ⅱ close to A356 forming Al transition region(α-Al and Al_3Mg_2),and the diffusion interfacial middle region Ⅲ (Mg_(17)Al_(12)、Mg_2Si and Al_3Mg_2).The width of Al transition region is more than that of Mg transition zone.The microhardness of the interfacial transition zone is obviously higher than those of bilateral alloys.When the annealing temperature is or lower than 250 ℃,absence of new intermetallic compounds can be observed in the interfacial transition zone.When annealing temperature is higher than 250℃,thickness of the interfacial transition zone is grown in form of exponent with the increase of annealing temperature.After annealing at 250 ℃ for 180 min,the tensile strength,yield strength and elongation of the composite plates reach 188 MPa,148 MPa and 10.1%,respectively,and the comprehensive mechanical properties present desirable.
Mg/Al composite plates were fabricated by liquid-solid cast rolling technology,which were annealed treatment subsequently.The effects of annealing temperature on the relationship between microstructure and mechanical properties of the composite plates were analyzed.The results reveal that the interfacial transition zone of Mg/Al composite plates is divided into three regions,region Ⅰ adjacent to AZ31B forming Mg transition region(δ-Mg and Mg_(17)Al_(12)),region Ⅱ close to A356 forming Al transition region(α-Al and Al_3Mg_2),and the diffusion interfacial middle region Ⅲ (Mg_(17)Al_(12)、Mg_2Si and Al_3Mg_2).The width of Al transition region is more than that of Mg transition zone.The microhardness of the interfacial transition zone is obviously higher than those of bilateral alloys.When the annealing temperature is or lower than 250 ℃,absence of new intermetallic compounds can be observed in the interfacial transition zone.When annealing temperature is higher than 250℃,thickness of the interfacial transition zone is grown in form of exponent with the increase of annealing temperature.After annealing at 250 ℃ for 180 min,the tensile strength,yield strength and elongation of the composite plates reach 188 MPa,148 MPa and 10.1%,respectively,and the comprehensive mechanical properties present desirable.
引文
[1]TOMITA K,MATSUURA K,OHNO M,et al.Corrosion resistance and tensile property of Al-coated Mg-Li alloy produced by hot extrusion[J].Key Engineering Materials,2015,641:69-80.
[2]陈飞帆.复合轧制工艺对Al/Mg复合板冶金结合层成分、组织和性能的影响[D].沈阳:东北大学,2013.
[3]MURALIDHARAN P,MANOJ G.Critically designing today’s melt processed bulk magnesium alloys using boron rich nanoparticles[J].Materials and Design,2015,B66:557-565.
[4]HABIBNEJAD-KORAYEM M,MAHMUDI R,GHASEMI H M,et al.Tribological behavior of pure Mg and AZ31magnesium alloy strengthened by Al2O3nano-particles[J].Wear,2010,268(3-4):405-412.
[5]NIE J F,ZHU Y M,LIU J Z,et al.Periodic segregation of solute atoms in fully coherent twin boundaries[J].Science,2013,340(6 135):957-960.
[6]LIU F,LIANG W,LI X,et al.Improvement of corrosion resistance of pure magnesium via vacuum pack treatment[J].Journal of Alloys and Compounds,2008,461(1):399-403.
[7]LI X,LIANG W,ZHAO X,et al.Bonding of Mg and Al with MgAl eutectic alloy and its application in aluminum coating on magnesium[J].Journal of Alloys and Compounds,2009,471(1):408-411.
[8]陈天赐,李元东,李明,等.浇注温度对固-液轧制A356/2024板材复合界面的影响[J].特种铸造及有色合金,2018,38(3):295-299.
[9]LIU P,LI Y J,GENG H R,et al.A study of phase constitution near the interface of Mg/Al vacuum diffusion bonding[J].Materials Letters,2005,59(16):2 001-2 005.
[10]王敬丰,吴忠山,王少华,等.退火工艺对Al/Mg/Al复合板界面结合与阻尼性能的影响[J].材料导报,2016,30(12):59-65.
[11]李小兵,祖国胤,王平.退火温度对异步轧制铜/Al复合板界面组织及力学性能的影响[J].中国有色金属学报,2013,23(5):1 202-1 207.
[12]KIM J S,LEE K S,KWON Y N,et al.Improvement of interfacial bonding strength in roll-bonded Mg/Al clad sheets through annealing and secondary rolling process[J].Materials Science&Engineering,2015,A628:1-10.
[13]ZHANG N,WANG W X,CAO X Q,et al.The effect of annealing on the interface microstructure and mechanical characteristics of AZ31B/AA6061composite plates fabricated by explosive welding[J].Materials and Design,2015,65:1 100-1 109.
[14]ZHENG H P,YANG J L,WU R Z,et al.Influence of annealing temperature on the microstructure and mechanical properties of Al/Mg/Al composite sheets fabricated by roll bonding[J].Advanced Engineering Materials,2016,18(10):1 792-1 798.
[15]CHEN Z Q,WANG D Y,CAO X Q,et al.Influence of multipass rolling and subsequent annealing on the interface microstructure and mechanical properties of the explosive welding Mg/Al composite plates[J].Materials Science&Engineering,2018,A723:97-108.
[16]LUO C Z,LIANG W,CHEN Z Q,et al.Effect of high temperature annealing and subsequent hot rolling on microstructural evolution at the bond-interface of Al/Mg/Al alloy laminated composites[J].Materials Characterization,2013,84(10):34-40.
[17]MACWAN A,JIANG X Q,LI C,et al.Effect of annealing on interface microstructures and tensile properties of rolled Al/Mg/Al tri-layer clad sheets[J].Materials Science&Engineering,2013,A587:344-351.
[18]李增贝.Mg/Al双金属液固复合连接的研究[D].哈尔滨:哈尔滨工程大学,2014.
[19]OGRIS E,WAHLENA,LCHINGER H,et al.On the silicon spheroidization in Al-Si alloys[J].Journal of Light Metals,2002,2(4):263-269.
[20]SUN B,LI S F,IMAI H,et al.Synthesis kinetics of Mg2Si and solid-state formation of Mg-Mg2Si composite[J].Powder Technology,2012,217:157-162.
[21]郭青蔚,王桂生,郭庚辰.常用有色金属二元合金相图集[M].北京:化学工业出版社,2010.
[22]LI Y J,LIU P,WANG J,et al.XRD and SEM analysis near the diffusion bonding interface of Mg/Al dissimilar materials[J].Vacuum,2007,82(1):15-19.
[23]LIU J C,HU J,NIE X Y,et al.The interface bonding mechanism and related mechanical properties of Mg/Al compound materials fabricated by insert molding[J].Materials Science and Engineering,2015,A635:70-76.
[24]胡庚祥,蔡珣,戎咏华.材料科学基础[M].上海:上海交通大学出版社,2010.
[2]陈飞帆.复合轧制工艺对Al/Mg复合板冶金结合层成分、组织和性能的影响[D].沈阳:东北大学,2013.
[3]MURALIDHARAN P,MANOJ G.Critically designing today’s melt processed bulk magnesium alloys using boron rich nanoparticles[J].Materials and Design,2015,B66:557-565.
[4]HABIBNEJAD-KORAYEM M,MAHMUDI R,GHASEMI H M,et al.Tribological behavior of pure Mg and AZ31magnesium alloy strengthened by Al2O3nano-particles[J].Wear,2010,268(3-4):405-412.
[5]NIE J F,ZHU Y M,LIU J Z,et al.Periodic segregation of solute atoms in fully coherent twin boundaries[J].Science,2013,340(6 135):957-960.
[6]LIU F,LIANG W,LI X,et al.Improvement of corrosion resistance of pure magnesium via vacuum pack treatment[J].Journal of Alloys and Compounds,2008,461(1):399-403.
[7]LI X,LIANG W,ZHAO X,et al.Bonding of Mg and Al with MgAl eutectic alloy and its application in aluminum coating on magnesium[J].Journal of Alloys and Compounds,2009,471(1):408-411.
[8]陈天赐,李元东,李明,等.浇注温度对固-液轧制A356/2024板材复合界面的影响[J].特种铸造及有色合金,2018,38(3):295-299.
[9]LIU P,LI Y J,GENG H R,et al.A study of phase constitution near the interface of Mg/Al vacuum diffusion bonding[J].Materials Letters,2005,59(16):2 001-2 005.
[10]王敬丰,吴忠山,王少华,等.退火工艺对Al/Mg/Al复合板界面结合与阻尼性能的影响[J].材料导报,2016,30(12):59-65.
[11]李小兵,祖国胤,王平.退火温度对异步轧制铜/Al复合板界面组织及力学性能的影响[J].中国有色金属学报,2013,23(5):1 202-1 207.
[12]KIM J S,LEE K S,KWON Y N,et al.Improvement of interfacial bonding strength in roll-bonded Mg/Al clad sheets through annealing and secondary rolling process[J].Materials Science&Engineering,2015,A628:1-10.
[13]ZHANG N,WANG W X,CAO X Q,et al.The effect of annealing on the interface microstructure and mechanical characteristics of AZ31B/AA6061composite plates fabricated by explosive welding[J].Materials and Design,2015,65:1 100-1 109.
[14]ZHENG H P,YANG J L,WU R Z,et al.Influence of annealing temperature on the microstructure and mechanical properties of Al/Mg/Al composite sheets fabricated by roll bonding[J].Advanced Engineering Materials,2016,18(10):1 792-1 798.
[15]CHEN Z Q,WANG D Y,CAO X Q,et al.Influence of multipass rolling and subsequent annealing on the interface microstructure and mechanical properties of the explosive welding Mg/Al composite plates[J].Materials Science&Engineering,2018,A723:97-108.
[16]LUO C Z,LIANG W,CHEN Z Q,et al.Effect of high temperature annealing and subsequent hot rolling on microstructural evolution at the bond-interface of Al/Mg/Al alloy laminated composites[J].Materials Characterization,2013,84(10):34-40.
[17]MACWAN A,JIANG X Q,LI C,et al.Effect of annealing on interface microstructures and tensile properties of rolled Al/Mg/Al tri-layer clad sheets[J].Materials Science&Engineering,2013,A587:344-351.
[18]李增贝.Mg/Al双金属液固复合连接的研究[D].哈尔滨:哈尔滨工程大学,2014.
[19]OGRIS E,WAHLENA,LCHINGER H,et al.On the silicon spheroidization in Al-Si alloys[J].Journal of Light Metals,2002,2(4):263-269.
[20]SUN B,LI S F,IMAI H,et al.Synthesis kinetics of Mg2Si and solid-state formation of Mg-Mg2Si composite[J].Powder Technology,2012,217:157-162.
[21]郭青蔚,王桂生,郭庚辰.常用有色金属二元合金相图集[M].北京:化学工业出版社,2010.
[22]LI Y J,LIU P,WANG J,et al.XRD and SEM analysis near the diffusion bonding interface of Mg/Al dissimilar materials[J].Vacuum,2007,82(1):15-19.
[23]LIU J C,HU J,NIE X Y,et al.The interface bonding mechanism and related mechanical properties of Mg/Al compound materials fabricated by insert molding[J].Materials Science and Engineering,2015,A635:70-76.
[24]胡庚祥,蔡珣,戎咏华.材料科学基础[M].上海:上海交通大学出版社,2010.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |