珠光体-铁素体套管钻井钢疲劳裂纹扩展行为及机制
Fatigue Crack Propagation Behavior and Mechanism of Pearlite-Ferrite Casing-Drilling Steel
摘 要
利用疲劳试验机及扫描电镜研究了珠光体-铁素体套管钻井钢疲劳裂纹扩展行为及机制。结果表明: 应力比对该钢Paris参数m没有显著影响, 但对C具有显著影响; 有效应力强度因子幅度ΔKeff是控制裂纹扩展更本质的材料参数; 在修正的Paris线性区, 应力比对裂纹扩展速率没有显著影响, 参数meff和Ceff均为常数; 随着应力比增加, 裂纹扩展门槛值的降低能够被归因于更小的裂纹闭合效应; 在较高应力比下, 门槛区疲劳断裂表面更不易发生塑性变形。
疲劳裂纹
扩展机制
应力强度因子幅度
pearlite-ferrite casing drilling steel
fatigue crack
propagation mechanism
stress strength factor range
Abstract
The fatigue crack propagation (FCP) behavior and mechanism of pearlite-ferrite casing-drilling steel was investigated by means of fatigue tester and scanning electron microscope. The results show that stress ratio has not a remarkable influence on Paris parameter m of the pearlite-ferrite steel, but has notably influences on Paris parameter C. The effective stress strength factor range ΔKeff is the dominant material parameter which governs the FCP rates. At the modified Paris linear zone, the stress ratio does not notably influence on the FCP rates, both meff and Ceff are constants. The FCP threshold values exhibit a significant decrease with the increase of stress ratio, which can be attributed to the crack closure effect. At the higher stress ratio, the plastic deformation is not prone to occur on the fracture surface of the threshold zone.
中图分类号 TG115.5 TG142.1 DOI 10.11973/jxgccl201509004
所属栏目 试验研究
基金项目 西安石油大学青年科技创新基金资助项目(Z12180); 陕西省优势学科专项资金资助项目
收稿日期 2014/3/28
修改稿日期 2015/4/8
网络出版日期
作者单位点击查看
备注许天旱(1971-), 男, 陕西咸阳人, 副教授, 博士。
引用该论文: XU Tian-han,YAO Ting-zhen,LIU Yan-ming. Fatigue Crack Propagation Behavior and Mechanism of Pearlite-Ferrite Casing-Drilling Steel[J]. Materials for mechancial engineering, 2015, 39(9): 16～21
许天旱,姚婷珍,刘彦明. 珠光体-铁素体套管钻井钢疲劳裂纹扩展行为及机制[J]. 机械工程材料, 2015, 39(9): 16～21
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参考文献
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【2】KARIMI M, PETRIE S W, MOELLENDICK E, et al. A review of casing drilling advantages to reduce lost circulation, augment wellbore strengthening, improve wellbore stability, and mitigate drilling-induced formation damage[C]∥SPE/IADC Middle East Drilling Technology Conference and Exhibition. Muscat, Oman: [s.n.], 2011: 1-8.
【3】SANCHEZ F J, SMITH M, KINDI M, et al. Drilling efficiency optimization (DEO) in casing while drilling (cwd) operations in the Sultanate of Oman[C].Muscat, Oman: SPE/IADC Middle East Drilling Technology Conference and Exhibition, 2011: 1-10.
【4】XU T H, JIN Z H, FENG Y R, et al. Study on the static and dynamic fracture mechanism of different casing-drilling steel grades[J]. Materials Characterization, 2012, 67: 1-9.
【5】XU T H, FENG Y R, SONG S Y, et al. Determination of the maximum strain-hardening exponent[J]. Materials Science and Engineering, 2012, 550: 80-86.
【6】BAILEY G, STRICKLER R D, HANNAHS D, et al. Evaluation of a casing drilling connection subjected to fatigue and combined load testing [C]// The 2006 offshore technology conference. Houston, Texas, USA:[s.n.], 2006: 1-7.
【7】LADOS D A, APELIAN D, JONES P E, et al. Microstructural mechanisms controlling fatigue crack growth in Al-Si-Mg cast alloys[J]. Materials Science and Engineering: A, 2007, 468/470: 237-245.
【8】HAMADA S, HAMADA H, SUZUKI H, et al. Microstructure and environment-dependent fatigue crack propagation properties of Ti-48Al intermetallics[J]. Journal of Materials Science, 2002, 37(6): 1107-1113.
【9】LU M X, ZHENG X L. A new microcomputer-aided system for measuring fatigue crack propagation threshold and selecting testing parameters[J]. Engineering Fracture Mechanics. 1993, 45(6): 889-896.
【10】PARIS P, ERDOGAN F. A Critical analysis of crack growth laws[J]. Journal of Basic Engineering, 1963, 85: 528-534.
【11】FUCHS H O, STEPHENS R I. Metal fatigue in engineering[M]. New York: Wiley Press, 1980: 318.
【12】WANG X G, DONGHUI YIN D H, XU F, et al. Fatigue crack initiation and growth of 16MnR steel with stress ratio effects [J]. International Journal of Fatigue, 2012, 35:10-15.
【13】CATON M J,JOHN R,PORTER W J, et al. Stress ratio effects on small fatigue crack growth in Ti-6Al-4V[J]. International Journal of Fatigue , 2012: 38: 36-45.
【14】KUMAR R, SINGH K. Influence of stress ratio on fatigue crack growth in mild steel[J]. Engineering Fracture Mechanics, 1995, 50: 377-384.
【15】SCARLIN R B, SHAKESHAFT M. Limitations of some methods of establishing fracture-toughness data[J]. Metals Technology, 1981(1): 1-9.
【16】XU F M, ZHU S J, ZHAO J, et al. Effect of stress ratio on fatigue crack propagation in a functionally graded metal matrix composite[J]. Composites Science and Technology, 2004, 64: 1795-1803.
【17】BOYCE B L, ORITCHIE R. Effect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V[J]. Engineering Fracture Mechanics, 2001, 68: 129-147.
【18】RICE J. The mechanics of crack tip deformation and extension by fatigue[C]∥Fatigue crack growth. Philadelphia,USA: Special Technical Publication 415, American Society for Testing and Material,1967:247-311.
【19】KORDA A A, MUTOH Y, MIYASHITA Y, et al. Effects of pearlite morphology and specimen thickness on fatigue crack growth resistance in ferritic-pearlitic steels[J]. Materials Science and Engineering: A, 2006, 428: 262-269.
【20】FURUKAWA K, MURAKAMIT Y, NISHIDA S I. A method for determining stress ratio of fatigue loading from the width and height striation[J]. International Journal of Fatigue,1998,20(7): 509-516.
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