Please wait a minute...
材料研究学报  2009, Vol. 23 Issue (4): 444-448    
  研究论文 本期目录 | 过刊浏览 |
一种新型非调质钢弯曲疲劳性能的试样尺寸效应
赵阳; 陈礼清; 刘相华
东北大学轧制技术及连轧自动化国家重点实验室~~沈阳~110004
Effect of specimen size on bending fatigue behavior of a new kind of micro-alloyed forging steel
ZHAO Yang;  CHEN Liqing;  LIU Xianghua
State Key Laboratory of Rolling and Automation; Northeastern University; Shenyang 110004
引用本文:

赵阳 陈礼清 刘相华. 一种新型非调质钢弯曲疲劳性能的试样尺寸效应[J]. 材料研究学报, 2009, 23(4): 444-448.
, , , . Effect of specimen size on bending fatigue behavior of a new kind of micro-alloyed forging steel[J]. Chin J Mater Res, 2009, 23(4): 444-448.

全文: PDF(866 KB)  
摘要: 

使用液压伺服疲劳试验机考察一种新型(汽车前轴用)Nb+V复合微合金非调质钢的疲劳行为, 绘制出S--N曲线并分析了疲劳断口特征, 研究了其三点弯曲疲劳性能的试样尺寸效应及其原因. 结果表明, 试样的尺寸对非调质钢的三点弯曲疲劳性能有显著的影响, 其三点弯曲疲劳极限随着试样尺寸的减小而增加, 但是试样尺寸对疲劳试样的断口形貌几乎没有影响; 在三点弯曲疲劳试验中, 试样尺寸效应源于试样内部的应力梯度, 小尺寸试样的应力梯度比大尺寸试样的高.

关键词 金属材料三点弯曲疲劳尺寸效应微合金化非调质钢    
Abstract

The three–point–bending fatigue behaviors of a new kind of Nb+V micro–alloyed forging steel for truck front axle have been studied by hydraulic servo fatigue testing machine. The effects of specimen size on the fatigue behavior and its origin have been considered. The S–N curves were plotted and the fatigue cracked surfaces were analyzed by SEM. The results showed that the specimen size has a significant influence on three–point–bending fatigue limit. The three–point–bending fatigue limit of specimen increased with decreasing the specimen size. There is little effect of specimen size on the morphology of fatigue fractured surfaces. The reasons for this specimen size effect are that there exist stress gradient in specimen for three–point–bending fatigue test and that the stress gradient in a smaller specimen is larger than that in a larger one.

Key wordsmetallic materials    three–point–bending fatigue    specimen size effect    micro–alloying    forging steel
收稿日期: 2009-01-16     
ZTFLH: 

TG111

 
基金资助:

教育部新世纪优秀人才支持计划项目NCET--06--0285和辽宁省教育厅创新团队基金项目资助.

1 M.J.Balart, C.L.Davis, M.Strangwood, Fracture behaviour in medium–carbon Ti–V–N and V–N microalloyed ferritic–pearlitic and banitic forging steels with enhanced machinability, Materials Science and Engineering A, 328(1–2), 48(2002)
2 M.L.N.da Silva, W.Regone, S.T.Button, Microstructure and mechanical properties of microalloyed steel forgings manufactured from cross–wedge–rolled performs, Scripta Materialia, 54(2), 213(2006)
3 F.A.Khalid, Precipitation and compositional changes in the structural phases of microalloyed automotive steels, Materials Science and Engineering A, 325(1–2), 281(2002)
4 M.Jahazi, B.Eghbali, The influence of hot forging conditions on the microstructure and mechanical properties of microalloyed steels, Journal of Materials Processing Technology, 113(1–3), 594(2001)
5 M.A.Linaza, L.J.Remero, J.M.Rodriguez, J.J.Urcola, Cleavage fracture of microalloyed forging steels, Scripta Metallurgica et Materialia, 32(3), 395(1995)
6 ZHAO Yang, CHEN Liqing, XU Xiangqiu, LIU Xianghua, Microstructure and mechanical properties of a kind of Nb–V micro–alloyed forging steel, Journal of Northeastern University (Natural Science), 30(6), 821(2009)
(赵阳, 陈礼清, 徐香秋, 刘相华, 一种Nb--V复合微合金化非调质钢的组织和性能, 东北大学学报(自然科学版),  30(6), 821(2009))
7 K.Katagiri, S.Sato, N.Tsuchiya, K.Kasaba, Bending fatigue characteristics of DyBaCuO bulk superconductor, Physica C: Spuerconductivity, 468(15–20), 1424(2008)
8 J.A.M.Ferreira, J.D.M.Costa, V.Lapat, Fatigue behaviour of 42CrMo4 steel with PVD coatings, International Journal of Fatigue, 19(4), 294(1997)
9 S.P.Wang, Y.J.Li, M.Yao, R.Z.Wang, Fatigue limits of shot–peened metals, Journal of Materials Processing Technology, 73(1–3), 57(1998)
10 YANG Zhenguo, ZHANG Jiming, LI Shouxin, CHU Zuoming, HUI Weijun, WENG Yuqing, Fatigue behavior of fine–grained high strength steel 42CrMoVNb, Acta Metallurgica Sinica, 40(4), 367(2004)
(杨振国, 张继明, 李守新, 禇作明, 惠卫军, 翁宇庆, 42CrMoVNb细晶高强钢的疲劳行为, 金属学报,  40(4), 367(2004))
11 R.W.Armstrong, The influence of polycrystal grain size on several mechanical properties of materials, Metallurgical Transactions, 1(5), 1169(1970)
12 ZHANG Wenhan, WANG Maoqiu, SHI Jie, HUI Weijun, DONG Han, WU Run, Effect of vanadium–niobium microalloying on properties of Cr–Ni–Mo heavy duty gear steel, Materials for Mechanical Engineering, 31(6), 31(2007)
(张文汉, 王毛球, 时捷, 惠卫军, 董 瀚, 吴 润, 钒--铌微合金化对铬--镍--钼系重载齿轮钢性能的影响, 机械工程材料, 31(6), 31(2007))
13 P.Farsetti, A.Blarasin, Fatigue behaviour of microalloyed steels for hot–forged mechanical components, International Journal of Fatigue, 10(3), 160(1998)
14 R.B.Heywood, Designing against fatigue, (London, Chapman and Hall LTD, 1962) p.32
15 W.N.Findley, An explanation of size effect in fatigue of metals, Journal of Mechanical Engineering Science, 14(6), 424(1972)

[1] 毛建军, 富童, 潘虎成, 滕常青, 张伟, 谢东升, 吴璐. AlNbMoZrB系难熔高熵合金的Kr离子辐照损伤行为[J]. 材料研究学报, 2023, 37(9): 641-648.
[2] 宋莉芳, 闫佳豪, 张佃康, 薛程, 夏慧芸, 牛艳辉. 碱金属掺杂MIL125CO2 吸附性能[J]. 材料研究学报, 2023, 37(9): 649-654.
[3] 赵政翔, 廖露海, 徐芳泓, 张威, 李静媛. 超级奥氏体不锈钢24Cr-22Ni-7Mo-0.4N的热变形行为及其组织演变[J]. 材料研究学报, 2023, 37(9): 655-667.
[4] 邵鸿媚, 崔勇, 徐文迪, 张伟, 申晓毅, 翟玉春. 空心球形AlOOH的无模板水热制备和吸附性能[J]. 材料研究学报, 2023, 37(9): 675-684.
[5] 幸定琴, 涂坚, 罗森, 周志明. C含量对VCoNi中熵合金微观组织和性能的影响[J]. 材料研究学报, 2023, 37(9): 685-696.
[6] 欧阳康昕, 周达, 杨宇帆, 张磊. LPSOMg-Y-Er-Ni合金的组织和拉伸性能[J]. 材料研究学报, 2023, 37(9): 697-705.
[7] 徐利君, 郑策, 冯小辉, 黄秋燕, 李应举, 杨院生. 定向再结晶对热轧态Cu71Al18Mn11合金的组织和超弹性性能的影响[J]. 材料研究学报, 2023, 37(8): 571-580.
[8] 熊诗琪, 刘恩泽, 谭政, 宁礼奎, 佟健, 郑志, 李海英. 固溶处理对一种低偏析高温合金组织的影响[J]. 材料研究学报, 2023, 37(8): 603-613.
[9] 刘继浩, 迟宏宵, 武会宾, 马党参, 周健, 徐辉霞. 喷射成形M3高速钢热处理过程中组织的演变和硬度偏低问题[J]. 材料研究学报, 2023, 37(8): 625-632.
[10] 由宝栋, 朱明伟, 杨鹏举, 何杰. 合金相分离制备多孔金属材料的研究进展[J]. 材料研究学报, 2023, 37(8): 561-570.
[11] 任富彦, 欧阳二明. g-C3N4 改性Bi2O3 对盐酸四环素的光催化降解[J]. 材料研究学报, 2023, 37(8): 633-640.
[12] 王昊, 崔君军, 赵明久. 镍基高温合金GH3536带箔材的再结晶与晶粒长大行为[J]. 材料研究学报, 2023, 37(7): 535-542.
[13] 刘明珠, 樊娆, 张萧宇, 马泽元, 梁城洋, 曹颖, 耿仕通, 李玲. SnO2 作散射层的光阳极膜厚对量子点染料敏化太阳能电池光电性能的影响[J]. 材料研究学报, 2023, 37(7): 554-560.
[14] 秦鹤勇, 李振团, 赵光普, 张文云, 张晓敏. 固溶温度对GH4742合金力学性能及γ' 相的影响[J]. 材料研究学报, 2023, 37(7): 502-510.
[15] 刘天福, 张滨, 张均锋, 徐强, 宋竹满, 张广平. 缺口应力集中系数对TC4 ELI合金低周疲劳性能的影响[J]. 材料研究学报, 2023, 37(7): 511-522.