Effect of raw materials ratio on performances of porous MgO reinforced Fe-Cr-Ni composites
SHI Si-tao1, CHEN Chang1, GUO Zheng1, LI Guo-xin1, WU Yong-hua1, SU Ming-zhou2, WANG Hui-meng2
1. School of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
Abstract：Fe-Cr-Ni alloys are widely applied to aero-engine, industrial gas turbine and other equipment because of their high temperature strength and toughness and creep resistance. Four kinds of porous MgO reinforced Fe-Cr-Ni matrix composites, which are nano-MgO (34.9%)/Fe-Cr-Ni (mass fraction, the same below), micro-MgO (34.9%)/Fe-Cr-Ni, micro-MgO (25.7%)/Fe-Cr-Ni, micro-MgO (17.0%)/Fe-Cr-Ni, were prepared by powder sintering and in situ synthesis method. Effect of the particle sizes and content of MgO on bending strength at room or high temperature and oxidation resistance of porous metal matrix composites at high temperature were investigated by XRD, DTA and SEM. The results show that different raw materials lead to the different enthalpy, resulting in the different porosities and phase compositions for the sintered samples. The porous composites consist of Cr0.7Fe0.36Ni2.9, Cr-Fe and MgO phases generally. The bending strength of these porous composites decreases with the increase of the temperature. The high temperature oxidation resistance of nano-MgO (34.9%)/Fe-Cr-Ni composites is the best of the four kinds of porous composites.
史思涛, 陈畅, 郭政, 李国新, 伍勇华, 苏明周, 王会萌. 原料配比对多孔MgO/Fe-Cr-Ni复合材料性能的影响[J]. 材料工程, 2019, 47(4): 167-173.
SHI Si-tao, CHEN Chang, GUO Zheng, LI Guo-xin, WU Yong-hua, SU Ming-zhou, WANG Hui-meng. Effect of raw materials ratio on performances of porous MgO reinforced Fe-Cr-Ni composites. Journal of Materials Engineering, 2019, 47(4): 167-173.
[1] LI Y F, CHEN C, HAN T F, et al. Microstructures and oxidation behavior of NiCrAlCoY-Al composite coatings on Ti-6Al-4V alloy substrate via high-energy mechanical alloying method[J]. Journal of Alloys and Compounds, 2017, 697:268-81.
[2] XUE M Q. Effect of graphite addition on oxidation behavior of Ni-Cr-based superalloy at 900℃[J]. Rare Metal Materials and Engineering, 2009, 38(7):1146-1149.
[3] WANG J A, WANG J H, SONG Z X. Microstructures and microsegregation of directionally solidified Mg-1.5Gd magnesium alloy with different growth rates[J]. Rare Metal Materials and Engineering, 2017, 46(1):12-16.
[4] 张云鹤,李庚,苗孟河,等.粉末冶金法碳纳米管增强镁基复合材料的微观组织及力学性能[J].复合材料学报, 2013, 30(增刊1):102-106. ZHANG Y H,LI G,MIAO M H,et al. Mircostructure and mechaninal properties of carbon nanotube reinforced magnesium matrix composites by powder metallurgy[J]. Acta Materiae Compositae Sinica, 2013, 30(Suppl 1):102-106.
[5] 赵翔,郝俊杰,于潇,等.Al2O3颗粒镀铜对铜基粉末冶金摩擦材料Al2O3-Fe-Sn-C/Cu摩擦磨损性能的影响[J].复合材料学报, 2015, 32(2):451-457. ZHAO X,HAO J J,YU X,et al. Effects of Cu-plating for Al2O3 particles on friction and wear properties of Cu-based powder metallurgy friction material Al2O3-Fe-Sn-C/Cu[J]. Acta Materiae Compositae Sinica, 2015, 32(2):451-457.
[6] YAN J J, GUO X P. Effect of heat-treatment on microstructure and mechanical behavior of directionally solidified Nb-Ti-Si based alloy[J]. Rare Metal Materials and Engineering, 2017, 46(1):1-6.
[7] HUNT H W. Metal-matrix composites[J]. Comprehensive Composites Materials, 2000,6:57-66.
[8] KLASSEN R J, HAGHSHENAS M. Mechanical characterization of flow formed FCC alloys[J]. Materials Science and Engineer-ing:A, 2015, 641:249-255.
[9] TJONG S C. Novel nanoparticle-reinforced metal matrix comp-osites with enhanced mechanical properties[J]. Advanced Engineering Materials, 2007, 9(8):639-652.
[10] YAR A A, MONTAZERIAN M, ABDIZADEH H, et al. Microstructure and mechanical properties of aluminum alloy matrix composite reinforced with nano-particle MgO[J]. Jour-nal of Alloys and Compounds, 2009, 484(1/2):400-404.
[11] BROCHU M, GAUNTT B D, BOYER L, et al. Pressureless reactive sintering of ZrB2 ceramic[J]. Journal of the European Ceramic Society, 2009, 29(8):1493-1499.
[12] NAGA S M, HASSAN A M, EL-MAGHRABY H F, et al. In-situ sintering reaction of Al2O3-LaAl11O18-ZrO2 composite[J]. International Journal of Refractory Metals and Hard Materials, 2016, 54:230-236.
[13] TIAN W S, ZHOU D S, QIU F et al. Superior tensile prope-rties of in situ nano-sized TiCp/Al-Cu composites fabricated by reaction in melt method[J]. Materials Science and Engineering:A, 2016, 658:409-414.
[14] 黎慧开,刘越,王保勇,等.真空热压原位Al3Ti增强Mg-Al基复合材料合成机制[J].复合材料学报, 2012, 29(4):132-137. LI H K,LIU Y,WANG B Y,et al. Fabrication mechanism of in-situ synthesized Al3Ti reinforced Mg-Al matrix composites by vacuum hot-pressing[J]. Acta Materiae Compositae Sinica, 2012, 29(4):132-137.
[15] 张伟,姚建华,张利春.激光熔覆原位生成VC-Fe3C/Fe-Ni复合涂层的组织与性能[J].复合材料学报, 2017, 34(1):142-151. ZHANG W,YAO J H,ZHANG L C. Microstructure and properties of in-situ synthesized VC-Fe3C/Fe-Ni composites co-ating made by laser cladding[J]. Acta Materiae Compositae Sinica, 2017, 34(1):142-151.
[16] TRAVITZKY N, KUMAR P, SANDHAGE K H, et al. Rapid synthesis of Al2O3 reinforced Fe-Cr-Ni composites[J]. Mat-erials Science and Engineering:A, 2003, 344(1/2):245-252.
[17] XU R R, SU Q. High Temperature Synthesis[M]//Modern Inorganic Synthetic Chemistry. 2nd edition. Holand:Academic Press, Elsevier, 2017, 40-43.
[18] MERZHANOV A G, BARZYKIN V V, SHTEINBERG A S, et al. Methodological principles in studying chemical reaction kinetics under conditions of programmed heating[J]. Therm-ochim Acta, 1977, 21:301-332.
[19] GLASSMAN I, YETTER A R,GLUMAC G N. Chemical thermodynamics and flame temperatures[M]//In Combustion. 5th edition. Holand:Academic Press, 2015, 4-5.
[20] ZHANG Y T, HAN H B, MIAO L D, et al. Quantitative carbide analysis using the Rietveld method for 2.25Cr-1Mo-0.25V steel[J]. Materials Characterization, 2009, 60(9):953-956.
2019, Vol. 47 
