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OALib Journal期刊
ISSN: 2333-9721
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汽车用高强度弹簧钢54SiCrV6和54SiCr6的超高周疲劳行为
, PP. 259-264
Keywords: 超高周疲劳,S-N特征曲线,疲劳极限,临界夹杂
Abstract:
研究了54SiCrV6和54SiCr6两种洁净高强弹簧钢的超高周疲劳行为，并利用FESEM和EPMA对疲劳断口进行了观察。实验结果表明，在高应力幅区，两种钢的疲劳破坏均起源于表面基体，而在低应力幅区，疲劳开裂均发生在试样内部。54SiCrV6钢的S-N曲线为典型的台阶式曲线，在109循环周次内，其疲劳极限消失，而54SiCr6钢存在疲劳极限。疲劳断口分析表明，54SiCrV6钢内部破坏是由钢中小夹杂物的聚集引起的，而54SiCr6钢则起源于碳化物的偏聚。临界夹杂物尺寸的估算表明，当高强钢中的夹杂物尺寸大于临界夹杂物尺寸时，其疲劳极限消失；反之，则疲劳极限存在。
| [1] | Mukamami Y, Kawakami K, Saito M. Trans Jpn Soc Spring Res, 1990; 35: 1
|
| [2] | Larsson M, Melander A, Blom R, Preston S. Mater Sci Technol, 1991; 7: 998
|
| [3] | Hui W J, Dong H, Weng Y Q. J Iron Steel Res, 2001; 13: 67 (惠卫军,董瀚,翁宇庆．钢铁研究学报, 2001;13:67)
|
| [4] | Harada Y, Mori K. J Mater Process Technol, 2005; 15: 498
|
| [5] | Ai J H, Zhao T C, Gao H J, Hu Y H, Xie X S. J Mater Process Technol, 2005; 30: 390
|
| [6] | Nam W J, Lee C S, Ban D Y. Mater Sci Eng, 2000; A289: 8
|
| [7] | Shin J C, Lee S H, Ryu J H. Int J Fatigue, 1999; 21: 571
|
| [8] | Abe T, Furuya Y, Matsuoka S. Fatigue Fract Eng Mater Struct, 2004; 27: 159
|
| [9] | Furuya Y, Abe T, Matsuoka S. Fatigue Fract Eng Mater Struct, 2003; 26: 641
|
| [10] | Zhang J M, Yang Z G, Zhang J F, Li G Y, Li S X, Hui W J, Weng Y Q. Acta Metall Sin, 2005; 41: 145 (张继明,杨振国,张建锋,李广义,李守新,惠卫军,翁宇庆． 金属学报,2005;41:145)
|
| [11] | Shiozawa K, Lu L, Ishihara S. Fatigue Fract Eng Mater Struct, 2001; 24: 781
|
| [12] | Yang Z G., Li S X, Zhang J M, Zhang J F, Li G Y, Li Z B, Hui W J, Weng Y Q. Acta Mater, 2004; 52: 5235
|
| [13] | Zhang J M, Zhang J F, Yang Z G, Li G Y, Yao G, Li S X, Hui W J, Weng Y Q. Mater Sci Eng, 2005; A394: 126
|
| [14] | Murakami Y, Nomoto T, Ueda T. Fatigue Fract Eng Mater Struct, 2000; 23: 893
|
| [15] | Wang Q Y, Berara J Y, Rathery S, Bathias C. Fatigue Fract Eng Mater Struct, 1999; 22: 673
|
| [16] | Lankford J. Int Met Rev, 1977; 22: 221
|
| [17] | Larsson M Melander A, Nordgren A. Mater Sci Technol, 1993; 9: 235
|
| [18] | Loren S. Int J Fatigue, 2003; 25: 129
|
| [19] | Murakami Y, Usuki H. Trans Jpn Soc Mech Eng, 1989; 55A: 213
|
| [20] | Murakami Y. Metal Fatigue: Effects of Small Defects and Nonmetallic Inclusions. Amsterdam: Elsevier, 2002: 91
|
| [21] | Yang Z G, Li S X, Zhang J M, Zhang J F, Li G Y, Li Z B, Hui W J, Weng Y Q. Acta Mater, 2004; 52: 5235l
|
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