Effect of Shot Peening on Residual Stress and Microstructure ofAl18B4O33 Whisker Reinforced Aluminum Matrix Composite
摘 要
对Al18B4O33晶须增强铝基复合材料进行常规喷丸(室温)与热喷丸(200℃)处理,研究了喷丸处理后表层残余应力分布,采用X射线衍射线形分析方法对表层微观结构进行表征,并研究了其显微硬度。结果表明:喷丸处理后复合材料表层的残余压应力随着距表面距离(深度)的增加先增大后减小,且热喷丸处理后的残余压应力大于常规喷丸处理后的;随着深度的增加,喷丸处理后表层的晶块尺寸增大,微观应变减小,且热喷丸处理后的晶块尺寸与微观应变小于常规喷丸处理后的;喷丸处理后表层的位错密度与硬度随着深度的增加而降低,且热喷丸处理后的位错密度与硬度均高于常规喷丸处理后的。
Abstract
Conventional (room temperature) and warm (200 ℃) shot peening treatments were performed on Al18B4O33 whisker reinforced aluminum matrix composite, and the residual stress distribution of the surface layer after shot peening was studied. The microstructure of the surface layer was investigated by X-ray diffraction profile analysis and the microhardness was also studied. The results show that the residual compressive stress of the surface layer of the composite after shot peening increased first and then decreased with increasing distance from the surface (depth); the residual compressive stress after warm shot peening was greater than that after conventional shot peening. The domain size of the surface layer increased with the depth after shot peening, and the microstrain decreased; the domain size and microstrain after warm peening were both smaller than those after conventional shot peening. The dislocation density and microhardness of the surface layer decreased with increasing depth after shot peening, and the dislocation density and the microhardness after warm peening were higher than those after conventional shot peening.
中图分类号 TB333 DOI 10.11973/jxgccl202012011
所属栏目 材料性能及应用
基金项目
收稿日期 2019/10/30
修改稿日期 2020/8/31
网络出版日期
作者单位点击查看
备注吴祎晗(1994-),男,湖北武汉人,硕士研究生
引用该论文: WU Yihan,JIANG Chuanhai. Effect of Shot Peening on Residual Stress and Microstructure ofAl18B4O33 Whisker Reinforced Aluminum Matrix Composite[J]. Materials for mechancial engineering, 2020, 44(12): 62~66
吴祎晗,姜传海. 喷丸处理对Al18B4O33晶须增强铝基复合材料残余应力和微观结构的影响[J]. 机械工程材料, 2020, 44(12): 62~66
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【2】SUGANUMA K,FUJITA T,SUZUKI N,et al.Aluminium composites reinforced with a new aluminium borate whisker[J].Journal of Materials Science Letters, 1990,9(6):633-635.
【3】ZHU S J,ⅡZUKA T.Fatigue behavior of Al18B4O33 whisker-framework reinforced Al matrix composites at high temperatures[J].Composites Science and Technology,2003,63(2):265-271.
【4】LIU H B,CHEN M,WANG L B,et al.Investigation on microstructure and properties of Al18B4O33 whisker reinforced AlMgSi matrix composite after shot peening[J].Vacuum,2019,160:303-310.
【5】何家文.表层强度及其对疲劳的影响[J].金属热处理学报,1997(3):61-64.
【6】王仁智.金属材料的喷丸强化原理及其强化机理综述[J].中国表面工程,2012,25(6):1-9.
【7】LAINÉ S J,KNOWLES K M,DOORBAR P J,et al.Microstructural characterisation of metallic shot peened and laser shock peened Ti-6Al-4V[J].Acta Materialia, 2017,123:350-361.
【8】CHAMPAIGNE J. Shot peening overview[EB/OL].[2019-10-20]. http://english.metalimprovement.net.cn/controlled-shot-peening.php.
【9】MENIG R,SCHULZE V,VÖHRINGER O.Optimized warm peening of the quenched and tempered steel AISI 4140[J].Materials Science and Engineering:A,2002,335(1/2):198-206.
【10】孟宪凯,周建忠,苏纯,等.温度对激光喷丸强化2024航空铝合金表面力学性能的影响[J].中国激光,2016,43(10):1002003.
【11】WICK A,SCHULZE V,VÖHRINGER O.Effects of warm peening on fatigue life and relaxation behaviour of residual stresses in AISI 4140 steel[J].Materials Science and Engineering:A,2000,293(1/2):191-197.
【12】GAO X,YUE H Y,GUO E J,et al.Design and tensile properties of aluminum borate whiskers reinforced aluminum composite with low whisker volume fraction[J].Composite Interfaces, 2017,24(4):371-379.
【13】WANG L,HU J,LI Z J,et al.Fracture behavior of aluminum borate whisker-reinforced aluminum alloy 6061 composite[J].Materials Science and Engineering:A,2008,497(1/2):358-362.
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【16】丁冬雁,张文龙.硼酸铝晶须增强6061铝复合材料的界面改性[J].复合材料学报,2000,17(2):34-37.
【17】孙金梅,刘炳,刘国明,等.硼酸铝晶须增强铝基复合材料研究现状[J].热加工工艺,2009,38(18):48-50.
【18】UNGÁR T.Dislocation densities,arrangements and character from X-ray diffraction experiments[J].Materials Science and Engineering:A, 2001,309/310:14-22.
【19】UNGÁR T,DRAGOMIR I,RÉVÉSZ,et al.The contrast factors of dislocations in cubic crystals:The dislocation model of strain anisotropy in practice[J].Journal of Applied Crystallography, 1999,32(5):992-1002.
【20】UNGÁR T,BORBÉLY A.The effect of dislocation contrast on X-ray line broadening:A new approach to line profile analysis[J].Applied Physics Letters, 1996,69(21):3173-3175.
【21】LANGFORD J I. A rapid method for analysing the breadths of diffraction and spectral lines using the Voigt function[J].Journal of Applied Crystallography, 1978,11(1):10-14.
【22】DE KEIJSER T H,LANGFORD J I,MITTEMEIJER E J,et al.Use of the Voigt function in a single-line method for the analysis of X-ray diffraction line broadening[J].Journal of Applied Crystallography, 1982,15(3):308-314.
【23】WILLIAMSON G K,SMALLMAN R E.Ⅲ.Dislocation densities in some annealed and cold-worked metals from measurements on the X-ray Debye-scherrer spectrum[J].Philosophical Magazine, 1956,1(1):34-46.
【24】姜传海,牟宗花.SiCw/LD2复合材料零错配应力温度及其调整[J].材料研究学报,1997,11(4):411-414.
【25】ROLAND T,RETRAINT D,LU K,et al.Fatigue life improvement through surface nanostructuring of stainless steel by means of surface mechanical attrition treatment[J].Scripta Materialia, 2006,54(11):1949-1954.
【26】LUAN W Z,JIANG C H,JI V,et al.Investigation for warm peening of TiB2/Al composite using X-ray diffraction[J].Materials Science and Engineering:A, 2008,497(1/2):374-377.
【27】WANG C X,JIANG C H,CAI F,et al.Effect of shot peening on the residual stresses and microstructure of tungsten cemented carbide[J].Materials & Design, 2016,95:159-164.
【28】BALZAR D, POPA N C. Analyzing microstructure by Rietveld refinement[J]. The Rigaku Journal, 2005, 22(1):16-25.
【29】CALLISTER W D, RETHWISCH D G. Materials science and engineering:An introduction[M]. New York:John Wiley & Sons, 2007:309-310.
【30】冯端.金属物理(下册)[M].北京:科学出版社,1975:102-103.
【31】ASHBY M, JONES D. Engineering materials I. An introduction to their properties and applications[M]. Oxford:Per-gamon, 1984:34-41.
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