Er对ZrCuNiAl非晶合金结构、力学性能、热稳定性及非晶形成能力的影响
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摘要
以(Zr_(0.6336)Cu_(0.1452)Ni_(0.1012)Al_(0.12))_(100-x)Er_x(x=0,0.5,1,1.5,2,2.5,3,原子分数,下同)系块体非晶合金为研究对象,通过改变微量元素Er的含量来研究Er对非晶合金的结构、力学性能、热稳定性及非晶形成能力的影响。结果表明:添加Er元素所制备出的试样都是完全非晶结构的合金。随着Er含量的增加,各试样的弹性模量呈现出先增大后减小,压缩塑性应变呈台阶式上升,x=0,x=0.5,x=1试样的塑性应变在4%的范围内波动;x=1.5,x=2,x=2.5试样的塑性应变在11%的范围内波动;x=3试样的塑性应变最高,其值为23.19%,弹性模量为37.76GPa,屈服强度为1604MPa,抗压强度为2068MPa,断裂强度为2060MPa;随着Er含量的增加,锆基非晶合金的热稳定性和非晶形成能力均先减小后增大。
Focusing on(Zr_(0.6336)Cu_(0.1452)Ni_(0.1012)Al_(0.12))_(100-x)Er_x(x=0,0.5,1,1.5,2,2.5,3,atom fraction)bulk amorphous alloys,the effect of Er on the structure,mechanical properties,thermal stability and amorphous forming ability of amorphous alloys was studied by changing the content of trace element of Er.The results show that all the samples are completely amorphous alloys after the addition of Er element.With the increase of the content of Er,the elastic modulus of each sample increases firstly and then decreases,and the compressive plastic strain is stepped up,and the plastic strain of samples at x=0,x=0.5 and x=1 is fluctuating in the range of 4%;the plastic strain of samples at x=1.5,x=2,x=2.5 in the range of 11%;the plastic strain of samples at x=3 is the highest,its value is 23.19%,the elastic modulus is 37.76 GPa,the yield strength is 1604 MPa,the compressive strength is 2068 MPa,the fracture strength is 2060 MPa.With the increase of Er content,the thermal stability of Zr based amorphous alloys and amorphous formation ability decrease firstly and then increase.
Focusing on(Zr_(0.6336)Cu_(0.1452)Ni_(0.1012)Al_(0.12))_(100-x)Er_x(x=0,0.5,1,1.5,2,2.5,3,atom fraction)bulk amorphous alloys,the effect of Er on the structure,mechanical properties,thermal stability and amorphous forming ability of amorphous alloys was studied by changing the content of trace element of Er.The results show that all the samples are completely amorphous alloys after the addition of Er element.With the increase of the content of Er,the elastic modulus of each sample increases firstly and then decreases,and the compressive plastic strain is stepped up,and the plastic strain of samples at x=0,x=0.5 and x=1 is fluctuating in the range of 4%;the plastic strain of samples at x=1.5,x=2,x=2.5 in the range of 11%;the plastic strain of samples at x=3 is the highest,its value is 23.19%,the elastic modulus is 37.76 GPa,the yield strength is 1604 MPa,the compressive strength is 2068 MPa,the fracture strength is 2060 MPa.With the increase of Er content,the thermal stability of Zr based amorphous alloys and amorphous formation ability decrease firstly and then increase.
引文
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[2]JOHNSON W L.Bulk glass-forming metallic alloys:science and technology[J].MRS Bulletin,1999,24(10):42-56.
[3]WANG W H.Roles of minor additions in formation and properties of bulk metallic glasses[J].Progress in Materials Science,2007,52(4):540-596.
[4]王国材,肖小波,陈艳萍,等.Ce68Al10Cu20Nb2大块非晶表面钝化膜的研究[J].材料工程,2016,44(5):72-78.WANG G C,XIAO X B,CHEN Y P,et al.Passive film formed on Ce68Al10Cu20Nb2bulk amorphous alloy[J].Journal of Materials Engineering,2016,44(5):72-78.
[5]孙亚娟,魏先顺,黄永江,等.稀土Gd掺杂对锆基块体非晶合金玻璃形成能力及力学性能的影响[J].金属学报,2009,45(2):243-248.SUN Y J,WEI X S,HUANG Y J,et al.Effect of Gd addition on the glass forming ability and mechanical properties in a Zr-based bulk amorphous alloy[J].Acta Metallurgica Sinica,2009,45(2):243-248.
[6]马明臻,梁顺星,陈军,等.钇对ZrCuNiAl系合金非晶形成能力的影响[J].燕山大学学报,2011,35(5):423-426.MA M Z,LIANG S X,CHEN J,et al.Effect of yttrium addition on glass forming ability of ZrCuNiAl alloy[J].Journal of Yanshan University,2011,35(5):423-426.
[7]刘群先,王新林,陈占恒.FeCuNbSiB-La非晶软磁合金的静态磁性能[J].稀土,1997,18(5):41-43.LIU Q X,WANG X L,CHEN Z H.Effect of La on the static magnetic property of FeCuNbSiB amorphous alloy[J].Chinese Rare Earths,1997,18(5):41-43.
[8]HUANG L J,LIANG G Y,SUN Z B.Effects of neodymium content on hydrogen-storage properties of Mg-Cu-Nd amorphous alloys[J].Rare Metal Materials and Engineering,2007,36(6):1033-1036.
[9]郭茂双,付浩,祖小涛.Gd的纯度对Gd52.5C018.5A129非晶合金的玻璃形成能力及磁热效应的影响[J].稀有金属材料与工程,2011,40(7):1243-1246.GUO M S,FU H,ZU X T.Effects of Gd purity on glass-forming ability and magnetocaloric effect of Gd52.5Co18.5Al29amorphous alloy[J].Rare Metal Materials and Engineering,2011,40(7):1243-1246.
[10]陈义明,甘章华,王锦林.稀土元素在非晶合金中的应用[J].材料导报,2010,24(16):495-498.CHEN Y M,GAN Z H,WANG J L.The application of rare earth element in amorphous alloy[J].Materials Review,2010,24(16):495-498.
[11]牛犇,赵庆明,田野,等.铒对Al-Ni-Y非晶合金微观结构及晶化行为的影响[J].中国稀土学报,2008,26(4):450-454.NIU B,ZHAO Q M,TIAN Y,et al.Influence of addition of erbium on microstructure and crystallization behaviour of Al-Ni-Y amorphous alloy[J].Journal of the Chinese Rare Earth Society,2008,26(4):450-454.
[12]李春燕,寇生中,赵燕春,等.Zr63.36Cu14.52Ni10.12Al12非晶合金的大塑性与尺寸效应[J].中国科学:物理学力学天文学,2012,42(6):571-576.LI C Y,KOU S Z,ZHAO Y C,et al.Large plasticity and size effect of Zr63.36Cu14.52Ni10.12Al12bulk metallic glasses[J].Scientia Sinica:Physica,Mechanica&Astronomica,2012,42(6):571-576.
[13]李春燕,寇生中,赵燕春,等.Al含量对Zr基块体非晶合金力学性能的影响[J].稀有金属,2015,39(4):300-307.LI C Y,KOU S Z,ZHAO Y C,et al.Mechanical properties of Zrbased bulk metallic glasses with different Al contents[J].Chinese Journal of Rare Metals,2015,39(4):300-307.
[14]李春燕,寇生中,刘广桥,等.Fe对Zr基合金的非晶形成能力、热稳定性及力学性能的影响[J].稀有金属材料与工程,2012,41(10):1790-1794.LI C Y,KOU S Z,LIU G Q,et al.Effects of Fe on glass forming ability,thermal stability and mechanical properties of Zrbased alloys[J].Rare Metal Materials and Engineering,2012,41(10):1790-1794.
[15]MA D,STOICA A D,WANG X L.Power-law scaling and fractal nature of medium-range order in metallic glasses[J].Nature Materials,2009,8(1):30-34.
[16]刘金民,袁晓光.冷却速度对ZrAlNiCu合金组织与力学性能的影响[J].特种铸造及有色合金,2010,30(10):883-886.LIU J M,YUAN X G.Effects of cooling rate on microstructure and mechanical properties of ZrAlNiCu alloy[J].Special Casting&Nonferrous Alloys,2010,30(10):883-886.
[17]INOUE A,KATO A,ZHANG T,et al.Mg-Cu-Y amorphous alloys with high mechanical strengths produced by a metallic mold casting method[J].Materials Transactions,JIM,1991,32(7):609-616.
[18]XU D,DUAN G,JOHMSON W L.Unusual glass-forming ability of bulk amorphous alloys based on ordinary metal copper[J].Physical Review Letters,2004,92(24):245-249.