Abstract Erosion resistance of 6 austenitic ferrous alloys has been investigated by comparison with a high chromium iron and 0Cr13Ni5Mo stainless steel used for hydraulic turbine using a rotating disc rig. Based on SEM observations of eroded surface and X-ray diffraction examinations of microstructure as well as simulative measurements of plough-cutting resistant capacity Wp and localized surface layer elasticity he for tested alloys, an attempt has been made to discuss the influence of hardness as well as the capacity Wp, the elasticity he and phase transformation on the resistance of the alloys. The results show micro-failure mechanism is plough-cutting of sand particles in the erosion process. The capacity Wp and the elasticity he are predominant factors characterizing the resistance of the stainless steels and Fe-Mn-Si-Cr shape memory alloys, and there exists a good quantitative formula indicating correlation of the elasticity he and the capacity Wp with their erosion rate Re. The role of phase transformation in the resistance depends on the synthetic effect of the capacity Wp and the elasticity he of induced martensite, and the resistance of 0Mn25Cr7Si6Cu Fe-Mn-Si-Cr shape memory alloy is better than that of the other tested alloys except the high chromium iron because the value of he of induced hexagonal closed-packed martensite is larger.
[1]Liu W,Zheng Y G,Rao G B,Yao Z M,Ke W.Acta Metall Sin,2002;38:185 (柳伟,郑玉贵,饶光斌,姚治铭,柯伟．金属学报,2002; 38:185) [2]Wang Y Q,Wang Z,Yang J H,Zhao L C.Scr Mater, 1996;35:1161 [3]Matsumura O,Sumi T,Tamura N,Sakao K.Mater Sci Eng,2000;A279:201 [4]Zhao T C,Sun B C,Du Y L,Fu F,Qi F J.Tribology, 1998;18:272 (赵田臣,孙宝臣,杜颜良,付芳,齐方娟．摩擦学学报,1998; 18:272) [5]Wang Z Y,Zhu J H.Chin J Mater Res,2003;17:39 (王再友,朱金华．材料研究学报,2003;17:39) [6]Wang Z Y,Zhu J H.Wear,2004;256:66 [7]Wang Z Y,Zhu J H.Acta Metall Sin,2003;39:273 (王再友,朱金华．金属学报,2003;39:273) [8]Xiao J M.Metallography of Stainless Steel.Beijing:Met- allurgical Industry Press,1983:64 (肖纪美．不锈钢的金属学问题．北京,冶金工业出版社,1983: 64) [9]Marshall P.Austenitic Stainless Steel Microstructure and Mechanical Properties.New York:McGraw-Hill,1984: 53 [10]Duan S X.In:Gu S H ed,Abrasion and Cavitation in Hy- draulic Machinery,Tianjin:Editorial board for Abrasion and Cavitation in Hydraulic Machinery of Water Conser- vancy Department and Electric Power Industry Depart- ment,2001:11 (段生孝．见:顾四行主编,水机磨蚀,天津:水利部电力工业部《水机磨蚀》编辑部,2001:11) [11]Zhao K,Gu C Q,Shen F S,Lou B Z.Wear,1993;162-164: 811 [12]Li S Z,Dong X L.Erosion abrasion and micro-vibration wear of materials.Beijing:China Machine Press,1987: 13 (李诗卓,董祥林．材料冲蚀磨损与微动磨损．北京:机械工业出版社,1987:13) [13]Feng Z,Ball A.Wear,1999;233-235:674 [14]Chen D A,Sarumi M,Al-Hassai S T S.Wear,1998;214: 64 [15]Magne'e A.Wear,1995;181-183:500 [16]Reshetnyak H,Kuybarsepp J.Wear,1994;177:185-193 [17]Wang Z Y,Chen H P,Xu Y G,Zhu J H.J Xi'an Jiaotong Univ,2002;36:744 (王再友,陈黄浦,徐英鸽,朱金华．西安交通大学学报,2002; 36:744) [18]Bergeon N,Guenin G,Esnouf C.Mater Sci Eng,1998; A242:87 [19]Zhang W F,Chen Y M,Zhu J H.Metall Mater Trans, 2002;33A:3117 [20]Maxwell P C,Goldberg A,Shyne J G.Metall Trans,1974; 4:1305 [21]Hsu T Y,Xu Z Y.Mater Sci Eng,1999;A273-275:494#
