王晨,李媛,王国材,陈武山,Hadjipanayis G C

• 1:福州大学材料科学与工程学院
• 2:特拉华大学物理与天文系

摘要(Abstract)：

研究了Ce69.5-xCu18Al1 1Nb1.5Yx(x=0,1,2,3)块体非晶的非晶形成能力、力学性能和耐腐蚀性能。结果表明:添加Y元素能够有效提高Ce-Cu-Al-Nb合金的非晶形成能力。其中,Ce67.5Cu18Al1 1Nb1.5Y2样品具有最佳的非晶形成能力,过冷液相区ΔTx=97 K,玻璃化转变温度Tg=349 K。在298 K进行压缩时,所有样品都表现出脆性断裂行为,断口形貌为典型的叶脉状花样。在363 K进行压缩时,所有样品都表现出明显的宏观塑性变形行为,当x=0~2时,可以观察到应力过冲现象。Ce67.5Cu18Al1 1Nb1.5Y2样品在塑性变形时,其流变应力最低,应变平台区最宽,有利于塑性加工。同时发现,添加Y可以改善Ce-Cu-Al-Nb合金的耐腐蚀性能,其中Ce67.5Cu18Al1 1Nb1.5Y2样品的耐腐蚀性能最佳。

关键词(KeyWords)： 块体非晶;Ce基合金;力学性能;腐蚀

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51001027);; 福建省自然科学基金(2012J01200,E0710005);; 福建省教育厅资助项目(JA10049)

作者(Author): 王晨,李媛,王国材,陈武山,Hadjipanayis G C

DOI: 10.13289/j.issn.1009-6264.2014.s2.008

参考文献(References)：

• [1]Zhang B,Pan M X,Zhao D Q,et al.“Soft”bulk metallic glasses based on cerium[J].Applied Physics Letters,2004,85:60-63.
• [2]Ding D,Tang M B,Xia L.Excellent glass forming ability and refrigeration capacity of a Gd55Al18Ni25Sn2bulk metallic glass[J].Journal of Alloys and Compounds,2013,581:828-831.
• [3]Zhang B,Zhao D Q,Pan M X,Wang R J,et al.Formation of cerium-based bulk metallic glasses[J].Acta Materialia,2006,54:3025-3032.
• [4]Zhang B,Wang R J,Zhao D Q,et al.Superior glass-forming ability through microalloying in cerium-based alloys[J].Physical Review B,2006,73:092201.
• [5]Li R,Pang S J,Ma C L,et al.Inuence of similar atom substitution on glass formation in(La-Ce)-Al-Co bulk metallic glasses[J].Acta Materialia,2007,55:3719-3726.
• [6]Park E S,Kim D H.Phase separation and enhancement of plasticity in Cu-Zr-Al-Y bulk metallic glasses[J].Acta Materilia,2006,54:2597-2604.
• [7]Kyeong J S,Kim D H,Lee J I,et al.Effects of alloying elements with positive enthalpy of mixing in Mg65Cu25Gd10bulk-forming metallic glasses[J].Intermetallics,2012,31:9-15.
• [8]Li R,Pang S J,Men H,et al.Formation and mechanical properties of(Ce-La-Pr-Nd)-Co-Al bulk glassy alloys with superior glass-forming ability[J].Scripta Materialia,2006,54:1123-1126.
• [9]Wei B C,Zhang T H,Zhang L C,et al.Plastic deformation in Ce-based bulk metallic glasses during depth-sensing indentation[J].Materials Science and Engineering A,2007,449-451:962-965.
• [10]Xu H W,Du Y L,Deng Y.Effects of Y addition on structural and mechanical properties of Cu Zr Al bulk metallic glass[J].Transactions of Nonferrous Metals Society of China,2012,22:842-846.
• [11]Li J,Ngan A H W,Gumbsch P.Atomistic modeling of mechanical behavior[J].Acta Materilalia,2003,51:5711-5742.
• [12]Chen H S.Metallic glasses[J].Materials Science and Engineering,1976,25:59-69.
• [13]Abbasi M,Gholamipour R,Shahri F.Glass forming ability and mechanical properties of Nb-containing Cu-Zr-Al based bulk metallic glasses[J].Transactions of Nonferrous Metals Society of China,2013,23:2037-2041.
• [14]Li C Y,Kou S Z,Zhao Y C,et al.Effect of cooling rate on plastic deformation of Zr-based bulk metallic glasses[J].Progress in Natural Science:Materials International,2012,22(1):21-25.
• [15]Shen J,Wang G,Sun J F,et al.Superplastic deformation behavior of Zr41.25Ti13.75Ni10Cu12.5Be22.5bulk metallic glass in the supercooled liquid region[J].Intermetallics,2005,13:79-85.
• [16]Cheng J H,Ghosh S.Computational modeling of plastic deformation and shear banding in bulk metallic glasses[J].Computational Material Science,2013,69:494-504.
• [17]Pang S J,Zhang T,Asami K,et al.Synthesis of Fe-Cr-Mo-C-B-P bulk metallic glasses with high corrosion resistance[J].Acta Materialia,2002,50:489-497.

文章评论(Comment)：