The influence of heat treatment (T6) on the ambient temperature dry sliding wear behavior of the extruded AZ91 alloy treated with Y using a pin-on-disc apparatus was investigated. Wear rates and friction coefficients were measured within a load range of 5–70 N at a sliding speed of 0.188 m/s over a constant sliding distance of 226.195 m. Worn surfaces and debris were examined us-ing a scanning electron microscope equipped with an energy dispersive spectrometer. The experimental results revealed that, as ap-plied load was increased, the alloy wear rates increased, but the friction coefficients decreased. Four chief operating wear mechanisms were observed, i.e., abrasion, oxidation, delamination and plastic deformation. The extruded AZ91 alloy treated with Y exhibited bet-ter wear resistance by adopting T6, which was mainly due to large amounts of fine Mg17Al12 distributed in the grains and the resulting modified strength and micro-hardness.
参考文献
| [1] | 陈玉安;金李;方丹;宋裕;叶睿宇.Effects of calcium, samarium addition on microstructure and mechanical properties of AZ61 magnesium alloy[J].稀土学报（英文版）,2015(1):86-92. |
| [2] | 吴道高;颜世宏;王志强;张志琦;苗睿瑛;张小伟;陈德宏.Effect of samarium on microstructure and corrosion resistance of aged as-cast AZ92 magnesium alloy[J].稀土学报（英文版）,2014(7):663-671. |
| [3] | 王智祥;谢建新;刘雪峰;李静媛;张丁非;潘复生.形变及时效对AZ91镁合金组织和力学性能的影响[J].金属学报,2007(9):920-924. |
| [4] | Weijiu Huang;Changhua Du;Zhaofeng Li;Ming Liu;Weiming Liu.Tribological characteristics of magnesium alloy using N-containing compounds as lubricating additives during sliding[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20061/2(1/2):140-148. |
| [5] | J. An;R. G. Li;Y. Lu;C. M. Chen;Y. Xu;X. Chen;L. M. Wang.Dry sliding wear behavior of magnesium alloys[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20081/2(1/2):97-104. |
| [6] | QI Qing-ju.Evaluation of sliding wear behavior of graphite particle-containing magnesium alloy composites[J].中国有色金属学会会刊（英文版）,2006(05):1135-1140. |
| [7] | Qi Qingju;Liu Yongbing;Yang Xiaohong.Friction and Wear Characteristics of Mg-Al Alloy Containing Rare Earths[J].Journal of Rare Earths,20032(2):157-162. |
| [8] | A. K. Mondal;S. Kumar.Dry sliding wear behaviour of magnesium alloy based hybrid composites in the longitudinal direction[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2009Pt.1(Pt.1):458-466. |
| [9] | 姜静;毕广利;赵磊;李荣广;连建设;江中浩.Dry sliding wear behavior of extruded Mg-Sn-Yb alloy[J].稀土学报（英文版）,2015(1):77-85. |
| [10] | El-Morsy AW.Dry sliding wear behavior of hot deformed magnesium AZ61 alloy as influenced by the sliding conditions[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20081/2(1/2):330-335. |
| [11] | 黄文先;闫洪.高能超声与稀土钇复合作用对AZ91铸态组织的影响[J].稀有金属材料与工程,2013(11):2346-2350. |
| [12] | HUANG Wenxian;YAN Hong.Calculation of Thermodynamic Parameters of Mg-Al-Y Alloy[J].武汉理工大学学报（材料科学版）（英文版）,2014(2):374-378. |
| [13] | Kaveh Meshinchi Asl;Afshin Masoudi;Farzad Khomamizadeh.The effect of different rare earth elements content on microstructure, mechanical and wear behavior of Mg–Al–Zn alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20107/8(7/8):2027-2035. |
| [14] | S. Anbu selvan;S. Ramanathan.Dry sliding wear behavior of as-cast ZE41A magnesium alloy[J].Materials & design,20104(4):1930-1936. |
| [15] | C. Taltavull;P. Rodrigo;B. Torres;A.J. Lopez;J. Rams.Dry sliding wear behavior of AM50B magnesium alloy[J].Materials & design,2014Apr.(Apr.):549-556. |
| [16] | C. Taltavull;B. Torres;A. J. Lopez;J. Rams.Dry sliding wear behavior of AM60B magnesium alloy[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20131/2(1/2):615-625. |
| [17] | C. Y. H. Lim;D. K. Leo;U. S. Ang;M. Gupta.Wear of magnesium composites reinforced with nano-sized alumina particulates[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20051(1):620-625. |
| [18] | C. Y. H. Lim;S. C. Lim;M. Gupta.Wear behaviour of SiCp-reinforced magnesium matrix composites[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20031/6(1/6):629-637. |
| [19] | B. VENKATARAMAN;G. SUNDARARAJAN.THE SLIDING WEAR BEHAVIOUR OF Al-SiC PARTICULATE COMPOSITES--I. MACROBEHAVIOUR[J].Acta materialia,19962(2):451-460. |
| [20] | M.SRINIVASAN;C.LOGANATHAN;M.KAMARAJ;Q.B.NGUYE;M.GUPTA;R.NARAYANASAMY.AZ31B镁合金及其纳米复合材料的滑动磨损行为[J].中国有色金属学报（英文版）,2012(01):60-65. |
| [21] | Ramezani, Maziar;Neitzert, Thomas;Pasang, Timotius;Selles, M. A..Dry sliding frictional characteristics of ZE10 and AZ80 magnesium strips under plastic deformation[J].Tribology International,2015Pt.A(Pt.A):255-262. |
| [22] | Nguyen, Q. B.;Sim, Y. H. M.;Gupta, M.;Lim, C. Y. H..Tribology characteristics of magnesium alloy AZ31B and its composites[J].Tribology International,2015Pt.B(Pt.B):464-471. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%