Please wait a minute...
金属学报  2009, Vol. 45 Issue (3): 320-325    
  论文 本期目录 | 过刊浏览 |
热处理对25Cr2NiMo1V钢疲劳特性的影响
朱明亮  轩福贞 朱奎龙 王国珍 贾天耀
华东理工大学机械与动力工程学院; 上海 200237
EFFECT OF HEAT TREATMENT ON FATIGUE BEHAVIOR OF 25Cr2NiMo1V STEEL
ZHU Mingliang; XUAN Fuzhen; ZHU Kuilong; WANG Guozhen; JIA Tianyao
School of Mechanical and Power Engineering; East China University of Science and Technology; Shanghai 200237
引用本文:

朱明亮 轩福贞 朱奎龙 王国珍 贾天耀. 热处理对25Cr2NiMo1V钢疲劳特性的影响[J]. 金属学报, 2009, 45(3): 320-325.
, , , , . EFFECT OF HEAT TREATMENT ON FATIGUE BEHAVIOR OF 25Cr2NiMo1V STEEL[J]. Acta Metall Sin, 2009, 45(3): 320-325.

全文: PDF(1215 KB)  
摘要: 

对商用25Cr2NiMo1V钢进行了955 ℃淬火+665 ℃回火的高压端热处理(HP)和900 ℃淬火+625 ℃回火的低压端热处理(LP). 通过疲劳实验测定了HP与LP试样疲劳门槛值和疲劳裂纹扩展速率. 结果表明, 在门槛值区, HP试样门槛值高于LP试样, 而其裂纹扩展速率却低于LP试样, HP试样抵抗疲劳裂纹扩展能力高于LP试样. 材料抗疲劳裂纹扩展能力的不同是由裂纹的闭合引起的, 表面粗糙度诱发裂纹闭合为主要因素. HP试样中回火贝氏体的紧密分布, 原始奥氏体晶粒较大以及LP试样中回火马氏体抵抗裂纹扩展能力相对较弱使HP试样中粗糙度诱发裂纹的闭合程度大于LP试样. 在Paris区, HP与LP试样的扩展速率相近, 裂纹扩展速率对材料微观组织和应力比的影响不敏感.

关键词 25Cr2NiMo1V钢 一体化转子疲劳门槛值裂纹扩展速率裂纹闭合    
Abstract

The specimens of commercial 25Cr2NiMo1V steel were treated at 955 ℃ quenching +665 ℃ tempering (HP) and 900 ℃ quenching +625 ℃ tempering (LP), respectively. Fatigue threshold and fatigue crack propagation rate tests were conducted in HP and LP specimens. The results show that in threshold regime, the HP specimen has larger fatigue threshold and lower fatigue crack growth rates than the LP specimen. The fatigue behavior is related to crack closure and the surface roughness is a main factor for crack closure. HP specimen has a larger crack closure ability than LP specimen due to the densified bainites and larger prior austenite grain size. HP specimen has more tempering martensites which do not play an important role in preventing crack growth. In Paris regime, no clear difference between fatigue behaviors of HP and LP specimens is observed.

Key words25Cr2NiMo1V steel    combined rotor    fatigue threshold    crack growth rate    crack closure
收稿日期: 2008-10-15     
ZTFLH: 

TG142.11

 
基金资助:

国家高技术研究发展计划项目2006AA04Z413和教育部新世纪优秀人才计划项目NCET-06-0414资助

作者简介: 朱明亮, 男, 1984年生, 博士生

[1] Kadoya Y, Magoshi R, Kawai H, Morinaka K, Mikami M, Soeda K. J Iron Steel Inst Jpn, 2001; 87: 564
[2] Tsuchiyama T, Okamura M, Miyakawa M, Matsumura K. Res Dev, 1993; 43(3): 87
[3] Zhu M L, Xuan F Z, Mei L B, Wang S Y. Power Eng, 2008; 28: 664
(朱明亮, 轩福贞, 梅林波, 王思玉. 动力工程, 2008; 28: 664)

[4] Tanaka Y, Azuma T, Miki K. In: Proc 4th Int Conf on Advances in Materials Technology for Fossil Power Plants, Materials Park, OH: ASM International, 2005: 520
[5] Liaw P K, Saxena A, Swaminathan V P, Shih T T. In: Davidson D ed., Int Sym on Fatigue Crack Growth Threshold Concepts, Warrendale: Metallurgical Society of AIME, 1983: 205
[6] Chaswal V, Sasikala G, Ray S K, Mannan S L, Raj B. Mater Sci Eng, 2005; A395: 251
[7] Forth S C, Newman Jr J C, Forman R G. Int J Fatigue, 2003; 25(1): 9
[8] Liaw P K, Lea T R, Logsdon W A. Acta Metall, 1983; 31: 1581
[9] Bulloch J H. Int J Pressure Vessels Piping, 1994; 58: 103
[10] Sadananda K. In: 2nd Int Conf on Fatigue and Fatigue Thresholds, Birmingham: Engineering Materials Advisory Services Ltd., 1984: 543
[11] Taylor D. Fatigue Thresholds. London: Butterworths, 1989: 72
[12] Ritchie R O. Int Met Rev, 1979; 24: 205
[13] McEvily A J, Minakawa K. In: 7th Int Conf on Strength of Metals and Alloys, Quebec: Pergamon Press, 1986: 1358
[14] Chen D L, Weiss B, Stickler R. Int J Fatigue, 1992; 14(5): 325
[15] Elber W. In: ASTM ed., Damage Tolerance in Aircraft Structures. Philadelphia: ASTM Special Technical Publication, 1971: 230
[16] Lawson L, Chen E Y, Meshii M. Int J Fatigue, 1999; 21(S1): 15
[17] Suresh S. Fatigue of Materials. Cambridge: Cambridge University Press, 1998: 483
[18] Lindley T, Richards C. Mater Sci Eng, 1974; 14: 281

[1] 戚钊, 王斌, 张鹏, 刘睿, 张振军, 张哲峰. 应力比对含缺陷选区激光熔化TC4合金稳态疲劳裂纹扩展速率的影响[J]. 金属学报, 2023, 59(10): 1411-1418.
[2] 佴启亮,董建新,张麦仓,姚志浩. 多组织因素对GH4738合金裂纹扩展速率的交互影响*[J]. 金属学报, 2016, 52(2): 151-160.
[3] 张利涛,王俭秋. 国产锻造态核级管材316L不锈钢在高温高压水中的应力腐蚀裂纹扩展行为[J]. 金属学报, 2013, 49(8): 911-916.
[4] 李微 陈振华 陈鼎 滕杰. 喷射沉积SiCp/Al-7Si复合材料的疲劳裂纹扩展[J]. 金属学报, 2011, 47(1): 102-108.
[5] 马英杰 李晋伟 雷家峰 唐振云 刘羽寅 杨锐. 显微组织对TC4ELI合金疲劳裂纹扩展路径及扩展速率的影响[J]. 金属学报, 2010, 46(9): 1086-1092.
[6] 熊缨 陈冰冰 郑三龙 高增梁. 16MnR钢在不同条件下的疲劳裂纹扩展规律[J]. 金属学报, 2009, 45(7): 849-855.
[7] 钟勇; 肖福仁; 单以银; 杨柯 . 管线钢的疲劳裂纹扩展速率与疲劳寿命关系的研究[J]. 金属学报, 2005, 41(5): 523-528 .
[8] 黄维刚; 方鸿生; 郑燕康 . C-Si-Mn-B贝氏体钢的疲劳裂纹扩展特性[J]. 金属学报, 2001, 37(9): 927-931 .
[9] 李晓; 董建新; 张丽娜; 张麦仓; 胡尧和; 谢锡善; 国为民 . 疲劳保载时间与固溶处理对PM René 95合金高温裂纹扩展速率的影响[J]. 金属学报, 2001, 37(10): 1059-1063 .
[10] 李航月;胡奈赛;何家文;周惠久. 残余压应力场中裂纹扩展的闭合模型[J]. 金属学报, 1998, 34(8): 847-851.
[11] 陈文哲;张飒;钱匡武;顾海澄;王中光. 离心喷射沉积Ti-48Al-2Mn-2Nb的疲劳裂纹扩展速率和门槛值[J]. 金属学报, 1998, 34(1): 70-74.
[12] 丁传富;于辉;吴学仁. 30CrMnSiNi2A高强钢的疲劳小裂纹扩展特性及寿命预测[J]. 金属学报, 1997, 33(3): 277-286.
[13] 骆竞晞;仝明信. 20CrMo钢中的Cottrell气团及其对初始屈服抗力和疲劳门槛值的影响[J]. 金属学报, 1996, 32(8): 834-838.
[14] 魏学军;李劲;柯伟. 小幅载荷在A537钢疲劳裂纹扩展过程中作用的研究[J]. 金属学报, 1996, 32(5): 504-509.
[15] 郦建立;李晓刚;谢根栓;姚治铭;李劲;柯伟. 20G和2.25Cr—1Mo钢氢蚀后的疲劳性能[J]. 金属学报, 1995, 31(13): 26-30.