熔渗法制备高强Mg(AZ91D)/NiTi阻尼复合材料及其压缩和阻尼性能
Fabrication of High-Strength Mg(AZ91D)/NiTi Composites by Infiltration and Their Compressive and Damping Properties
摘 要
为了提高多孔NiTi合金的力学、阻尼性能, 采用熔渗法将镁(或AZ91D镁合金)渗入至多孔NiTi合金的孔隙中制备出了新型轻质高强Mg(AZ91D)/NiTi阻尼复合材料, 并对复合材料的压缩性能和阻尼性能进行了研究。结果表明: 采用此方法制备出的Mg(AZ91D)/NiTi复合材料的相变仍具有马氏体相变特征, 并具有优良的循环压缩性能(超弹性应变可达2.3%), 其首次抗压强度可达530 MPa, 明显高于多孔NiTi合金(200～300 MPa)的; 引入的熔渗相所带来的多阻尼机制的叠加使此复合材料比多孔NiTi合金具有更佳的强度和阻尼综合性能。
复合材料
熔渗
力学性能
阻尼
porous NiTi alloy
composite
infiltration
mechanical properties
damping
Abstract
In order to improve the mechanical properties and damping capacity of porous NiTi alloy, an method for fabricating the novel Mg(AZ91D)/NiTi composites with optimized damping capacity and mechanical properties by infiltration of Mg (AZ91D magnesium alloy) into porous NiTi alloys had developed, and the compressive and damping properties of the composite were studied. The results show that the composites still possessed the martensitic transformation features, and showed excellent cycling compressive properties including excellent linear superelasticity up to 2.3%. The compressive strength of the composites could reach to 530 MPa, higher than that of porous NiTi alloys (200-300 MPa) obviously. The several damping mechanisms benefiting from the introduction of infiltrated phases made Mg(AZ91D)/NiTi composites had better general combination of strength and damping capacity.
中图分类号 TB383
所属栏目 新材料新工艺
基金项目
收稿日期 2012/7/21
修改稿日期 2013/2/1
网络出版日期
作者单位点击查看
备注李大圣(1979—), 男, 吉林吉林人, 工程师, 博士。
引用该论文: LI Da-sheng. Fabrication of High-Strength Mg(AZ91D)/NiTi Composites by Infiltration and Their Compressive and Damping Properties[J]. Materials for mechancial engineering, 2013, 37(7): 37～42
李大圣. 熔渗法制备高强Mg(AZ91D)/NiTi阻尼复合材料及其压缩和阻尼性能[J]. 机械工程材料, 2013, 37(7): 37～42
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参考文献
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【4】LAVERNIA E J, PEREZ R J, ZHANG J. Damping behavior of discontinuously reinforced Al alloy metal-matrix composites[J].Metallurgical and Materials Transactions A, 1995, 26: 2803-2818.
【5】张新平, 张宇鹏.多孔NiTi形状记忆合金研究进展[J].材料研究学报, 2007, 21(6): 561-569.
【6】YUAN B, ZHANG X P, CHUNG C Y, et al. A comparative study of the porous TiNi shape memory alloys fabricated by three different processes[J].Metallurgical and Materials Transactions A, 2006, 37: 755-761.
【7】ZHANG Y P, CHUNG Z Y, ZHANG X P. Porous titanium nickel alloys with adjustiable porosity fabricated by use of pore-forming agent and conventional sintering[J].Journal of Materials Science and Engineering, 2007, 25(6): 938-942.
【8】张宇鹏, 张新平, 钟志源.梯度孔隙率与大孔隙尺寸NiTi形状记忆合金的制备及其相变和超弹性行为[J].金属学报, 2007, 43(11): 1221-1227.
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【10】ZHANG X N, WU R. J. Damping capacity of pure Mg metal matrix composites[J].Key Engineering Materials, 2003, 249: 217-222.
【11】曾荣昌, 柯伟, 徐永波, 等.Mg合金的最新发展及应用前景[J].金属学报, 2001, 37(7): 673-685.
【12】关锐峰, 李大圣, 张新平.采用新型硬脂酸造孔剂烧结制备多孔NiTi合金的结构及性能[J].机械工程材料, 2010, 34(11): 37-41.
【13】张新平, 李大圣, 张宇鹏.可控孔隙特征轻质高强多孔镍钛记忆合金的制备方法: 中国, ZL 200710030822.4[P].2008-03-12.
【14】LI D S, ZHANG Y P, MA X, et al. Space-holder engineered porous NiTi shape memory alloys with improved pore characteristics and mechanical properties[J].Journal of Alloys and Compounds, 2009, 474(1/2): 1-5.
【15】PELTONEN M, TOMI L, MARKE K. Effect of ageing on transformation kinetics and internal friction of Ni-rich Ni-Ti alloys[J].Journal of Alloys and Compounds, 2008, 460: 237-245.
【16】KHALIL A J, REN X, EGGELER G. The mechanism of multistage martensitic transformations in aged Ni-rich NiTi shape memory alloys[J].Acta Materialia, 2002, 50(4): 793-803.
【17】CARROLL M C, SOMSEN C, EGGELER G. Multiple-step martensitic transformations in Ni-rich NiTi shape memory alloys[J].Scripta Materialia, 2004, 50(2): 187-192.
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【19】张小农, 吴人洁, 李小璀, 等.金属基复合材料界面层阻尼功能研究[J].中国科学E辑: 技术科学, 2002, 32(1): 14-19.
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