钛取代铝对Cu46Zr46Al8非晶合金晶化行为的影响
Effect of Aluminum Substituted by Titanium on Crystallization Behavior of Cu46Zr46Al8 Amorphous Alloy
摘 要
采用铜模真空吸铸方法制备Cu46Zr46（Al1-xTix）8（x=0，0.2，0.4，0.5，0.6，0.8，1.0）非晶合金，研究了钛取代量对合金热稳定性和晶化行为的影响。结果表明：合金的玻璃化转变温度、晶化初始温度、晶化峰值温度随着钛取代量的增加而降低，随着加热速率的增大向高温区移动；当钛取代量增至0.8时，合金的晶化过程由一级晶化变成多级晶化；合金的晶化激活能随着钛取代量的增加呈现降低的趋势，其热稳定性和抗晶化能力降低；合金中生成的Laves相是晶化激活能降低的主要原因。
激活能
热稳定性
晶化行为
amorphous alloy
activation energy
thermal stability
crystallization behavior
Abstract
Cu46Zr46(Al1-xTix)8 (x=0,0.2,0.4,0.5,0.6,0.8,1.0) amorphous alloys were prepared by vacuum suction casting of copper mold. Effects of titanium substitution amount on thermal stability and crystallization behavior of the alloys were studied. The results show that with the increase of titanium substitution amount, the glass transition temperature, initial crystallization temperature and peak crystallization temperature of the alloys decreased, and shifted to the high temperature zone with heating rate increasing. When the substitution amount of titanium increased to 0.8, the crystallization process of the alloys changed from single-stage crystallization to multi-stage crystallization.The activation energy of the alloy decreased with titanium substitution amount increasing, and also the thermal stability and crystallization resistance decreased. The Laves phase formed in the alloys was the main reason for the decrease of activation energy of crystallization.
中图分类号 TG139.8 DOI 10.11973/jxgccl201907001
所属栏目 新材料 新工艺
基金项目 国家自然科学基金资助项目（51801062）；湖南省自然科学基金资助项目（2017JJ3198）；湖南省教育厅一般项目（17C0944）
收稿日期 2018/6/27
修改稿日期 2019/5/28
网络出版日期
作者单位点击查看
备注马国芝(1981-),女,山东聊城人,讲师,博士
引用该论文: MA Guozhi,YANG Jun,LI Mi. Effect of Aluminum Substituted by Titanium on Crystallization Behavior of Cu46Zr46Al8 Amorphous Alloy[J]. Materials for mechancial engineering, 2019, 43(7): 1～4
马国芝,杨俊,李密. 钛取代铝对Cu46Zr46Al8非晶合金晶化行为的影响[J]. 机械工程材料, 2019, 43(7): 1～4
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【2】汪卫华. 金属玻璃研究简史[J].物理,2011,40(11):701-709.
【3】ZHANG Z F,ECKERT J,SCHULTZ L.Difference in compressive and tensile fracture mechanisms of Zr59Cu20Al10Ni8Ti3 bulk metallic glass[J]. Acta Materialia, 2003, 51(4):1167-1179.
【4】秦风香. Zr基非晶合金的制备和腐蚀性能研究[D]. 北京:中国科学院金属研究所, 2006:60-63.
【5】谭军. 成分与结构对Zr-Co-Al-(Fe)大块金属玻璃力学性能的影响[D]. 重庆:重庆大学, 2011:78-82.
【6】惠希东. 块体非晶合金[M]. 北京:化学工业出版社, 2007:52-73.
【7】曹庆平. Cu基块体非晶合金的玻璃形成能力、晶化机制及变形诱发的结构和力学性能变化[D]. 上海:上海交通大学, 2007:85-92.
【8】LIU H B, LI J F, CAO Q P, et al. Free-volume evolution of glassy Zr65Al7.5Ni10Cu17.5 during inhomogeneous deformation[J]. Chinese Science Bulletin, 2007, 52(24):3443-3447.
【9】PRASHANTH K G, SCUDINO S, KHOSHKHOO M S, et al. Structural and mechanical characterization of Zr58.5Ti8.2Cu14.2Ni11.4Al7.7 bulk metallic glass[J]. Materials, 2011, 5(12):1-11.
【10】WANG W. Roles of minor additions in formation and properties of bulk metallic glasses[J]. Progress in Materials Science, 2007, 52(4):540-596.
【11】李然. 相似原子对块体非晶合金玻璃形成能力的影响[D]. 北京:北京航空航天大学, 2007:107-109.
【12】KIM K H, KIM H J, LEE J C. Effect of a minor element with a large mixing enthalpy difference on the plasticity of amorphous alloys[J]. Journal of Materials Research, 2007, 22(9):2558-2564.
【13】WANG D, LI Y, SUN B B, et al. Bulk metallic glass formation in the binary Cu-Zr system[J]. Applied Physics Letters, 2004, 84(20):4029-4031.
【14】GILMAN J J. Flow via dislocations in ideal glasses[J]. Journal of Applied Physics, 1973, 44(2):675-679.
【15】INOUE A, FAN C, MASUMOTO T. Thermal properties of Zr-TM-B and Zr-TM-Ga (TM=Co, Ni, Cu) amorphous alloys with wide range of supercooling[J]. Materials Transactions, JIM, 1995, 36(12):1411-1419.
【16】ZHANG Q S, ZHANG W, INOUE A. Bulk metallic glass formation near a quaternary Cu-Zr-Ti-Al eutectic point[J]. Materials Transactions, 2006, 47(11):2804-2807.
【17】马国芝. Cu-Zr基非晶及其复合材料的热稳定性、力学性能和腐蚀性能研究[D]. 长沙:湖南大学, 2013:50-57.
【18】KISSINGER H E. Variation of peak temperature with heating rate in differential thermal analysis[J]. Journal of Research of the National Bureau of Standards,1956,57(4):217.
【19】PAULY S, DAS J, MATTERN N, et al. Phase formation and thermal stability in Cu-Zr-Ti(Al) metallic glasses[J]. Intermetallics, 2009, 17(6):453-462.
【20】JIANG J Z, KATO H, OHSUNA T, et al. Origin of nondetectable X-ray diffraction peaks in nanocomposite CuTiZr alloys[J]. Applied Physics Letters, 2003, 83(16):3299-3301.
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【22】YAN X L, CHEN X Q, GRYTSIV A, et al. Crystal structure, phase stability and elastic properties of the laves phase ZrTiCu2[J]. Intermetallics, 2008, 16(5):651-657.
【23】INOUE A, KITA K, ZHANG T, et al. An amorphous La55Al25Ni20 alloy prepared by water quenching[J]. Materials Transactions, JIM, 1989, 30(9):722-725.
【24】CHENG Y Q, CAO A J, SHENG H W, et al. Local order influences initiation of plastic flow in metallic glass:Effects of alloy composition and sample cooling history[J]. Acta Materialia, 2008, 56(18):5263-5275.
【25】CHENG Y Q, MA E, SHENG H W. Alloying strongly influences the structure, dynamics, and glass forming ability of metallic supercooled liquids[J]. Applied Physics Letters, 2008, 93(11):111913.
【26】CHENG Y Q, MA E, SHENG H W. Atomic level structure in multicomponent bulk metallic glass[J]. Physical Review Letters, 2009, 102(24):245501-245504.
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