Al_9Fe_(0.7)Ni_(1.3)颗粒对固溶态喷射沉积Al-Zn-Mg-Cu-Ni合金组织和性能的影响（英文）
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摘要
利用喷射沉积技术制备含Ni的Al-Zn-Mg-Cu合金。利用扫描电镜和电子背散射衍射、透射电镜以及拉伸测试研究了Al_9Fe_(0.7)Ni_(1.3)颗粒对合金固溶处理后组织和性能的影响。结果发现:合金中的Ni元素以亚微米球状Al_9Fe_(0.7)Ni_(1.3)化合物的形式存在,Al_9Fe_(0.7)Ni_(1.3)颗粒主要在晶界附近分布,说明该颗粒在固溶过程中具有有力的抑制再结晶作用。固溶处理后,合金的抗拉强度为603 MPa,断裂延伸率为11.79%,主要断裂方式为穿晶延性断裂。实验结果表明,亚微米球状Al_9Fe_(0.7)Ni_(1.3)化合物对合金性能有重要影响,可以产生细晶强化和Orowan强化,是合金发生穿晶延性断裂的主要原因。
An Al-Zn-Mg-Cu alloy with Ni added as an alloying element was synthesized via spray deposition. The effects of the Al_9Fe_(0.7)Ni_(1.3) particles on the microstructure and mechanical properties of the alloy after a solution treatment were investigated by scanning electron microscopy(SEM) in conjunction with electron backscatter diffraction(EBSD), transmission electron microscopy(TEM) and tensile tests. We find that the element Ni is present in the alloy in the form of spherical submicrometer Al_9Fe_(0.7)Ni_(1.3) compound particles. The Al_9Fe_(0.7)Ni_(1.3) compound particles are mainly distributed near the grain boundaries, revealing a powerful recrystallization inhibition effect during the solution treatment. After the solid solution treatment, the alloy exhibits an ultimate tensile strength of 603 MPa and an elongation of 11.79%, and transgranular ductile fracture is identified as the main fracture mechanism. The results show that the presence of the spherical submicrometer Al_9Fe_(0.7)Ni_(1.3) compound particles plays a key role on the mechanical properties of the alloy, leading to grain refinement strengthening and Orowan strengthening, which is the main reason for the occurrence of transgranular ductile fracture.
An Al-Zn-Mg-Cu alloy with Ni added as an alloying element was synthesized via spray deposition. The effects of the Al_9Fe_(0.7)Ni_(1.3) particles on the microstructure and mechanical properties of the alloy after a solution treatment were investigated by scanning electron microscopy(SEM) in conjunction with electron backscatter diffraction(EBSD), transmission electron microscopy(TEM) and tensile tests. We find that the element Ni is present in the alloy in the form of spherical submicrometer Al_9Fe_(0.7)Ni_(1.3) compound particles. The Al_9Fe_(0.7)Ni_(1.3) compound particles are mainly distributed near the grain boundaries, revealing a powerful recrystallization inhibition effect during the solution treatment. After the solid solution treatment, the alloy exhibits an ultimate tensile strength of 603 MPa and an elongation of 11.79%, and transgranular ductile fracture is identified as the main fracture mechanism. The results show that the presence of the spherical submicrometer Al_9Fe_(0.7)Ni_(1.3) compound particles plays a key role on the mechanical properties of the alloy, leading to grain refinement strengthening and Orowan strengthening, which is the main reason for the occurrence of transgranular ductile fracture.
引文
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28 Bazarnik P,Huang Y,Lewandowska M et al.Materials Science and Engineering A[J],2015,626:9
29 Ma K,Wen H M,Hu T et al.Acta Materialia[J],2014,62:141
30 Zhou D S,Qiu F,Jiang Q C.Materials Science and Engineering A[J],2015,622:189
2 Tiwary C S,Kashyap S,Kim D H et al.Materials Science and Engineering A[J],2015,639:359
3 B?yük U,Engin S,Mara?l?N.Materials Characterization[J],2011,62(9):844
4 Casari D,Ludwig T H,Merlin M et al.Materials Science and Engineering A[J],2014,610:414
5 Di Giovanni M T,Cerri E,Casari D et al.Metallurgical and Materials Transactions A[J],2016,47(5):2049
6 Kundin J,Pogorelov E,Emmerich H.Acta Materialia[J],2015,83:448
7 Naeem H T,Mohammed K S,Ahmad K R et al.Digest Journal of Nanomaterials and Biostructures[J],2014,9:1309
8 Warmuzek M.Journal of Alloys and Compounds[J],2014,604:245
9 Farkoosh A R,Pekguleryuz M.Materials Science and Engineering A[J],2013,582:248
10 Elgallad E M,Shen P,Zhang Z et al.Materials&Design[J],2014,61:133
11 Silva B L,Dessi J G,Gomes L F et al.Journal of Alloys and Compounds[J],2017,691:952
12 Wang F,Xiong B Q,Zhang Y A et al.Materials Science and Engineering A[J],2009,518(1-2):144
13 Wang F,Xiong B Q,Zhang Y A et al.Materials&Design[J],2007,28(4):1154
14 Wang F,Xiong B Q,Zhang Y A et al.Journal of Alloys and Compounds[J],2009,487(1-2):445
15 Yang Y,Yu K L,Li Y G et al.Materials&Design[J],2012,33:220
16 Chumak I,Richter K W,Ipser H.Intermetallics[J],2007,15(11):1416
17 M?Ller H,Stumpf W E,Pistorius P C.Transactions of Nonferrous Metals Society of China[J],2010,20(S3):842
18 Mikhaylovskaya A V,Yakovtseva O A,Cheverikin V V et al.Materials Science and Engineering A[J],2016,659:225
19 Khaidar M,Allibert C H,Driole J.Zeitschrift fur Metall-kunde[J],1982,73(7):433
20 Liu B,Lei Q,Xie L Q et al.Materials&Design[J],2016,96:217
21 Li G A,Zhang K,Lu Z et al.Rare Metal Materials and Engineering[J],2016,45(4):1040(in Chinese)
22 Shen Y G,Bai P C,Hou X H et al.Rare Metal Materials and Engineering[J],2014,43(8):2032(in Chinese)
23 Wen K,Xiong B Q,Zhang Y A et al.Rare Metal Materials and Engineering[J],2017,46(4):928
24 Zhang J,Yang L,Zuo R L.Rare Metal Materials and Engineering[J],2015,44(4):956(in Chinese)
25 Yu H C,Wang M P,Jia Y L et al.Journal of Alloys and Compounds[J],2014,601:120
26 Peng G S,Chen K H,Chen S Y et al.Materials Science and Engineering A[J],2015,641:237
27 Yang X B,Chen J H,Liu J Z et al.Materials Characterization[J],2013,83:79
28 Bazarnik P,Huang Y,Lewandowska M et al.Materials Science and Engineering A[J],2015,626:9
29 Ma K,Wen H M,Hu T et al.Acta Materialia[J],2014,62:141
30 Zhou D S,Qiu F,Jiang Q C.Materials Science and Engineering A[J],2015,622:189
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