许天旱,丁一明,林宏,蔡炎桥,雷志胜

• 1:西安石油大学材料科学与工程学院

摘要(Abstract)：

借助静态液压万能试验机和低温试验箱,研究了钻杆钢在不同温度下的强度变化规律,同时用扫描电镜及透射电镜研究了钻杆钢的显微组织及拉伸断口形貌。结果表明:随着温度的降低,钻杆钢的屈服强度和抗拉强度均呈增加趋势,屈强比呈下降趋势。随着钻杆钢级的提高,材料的抗拉强度温度敏感系数q_b和屈服强度温度敏感系数q_s均呈明显的减小趋势,但它们的比值呈明显的增加趋势。抗屈温度敏感系数比k(抗拉强度与屈服强度温度敏感系数比值)可用来表征温度对材料的力学性能的影响,k值越大,随着温度降低,相比屈服强度,抗拉强度提高更快,材料低温综合力学性能越好。在本文研究的温度范围内,随着温度的降低,钻杆钢的断口始终保持为延性断裂特征,这与材料塑性没有随温度降低而显著降低是一致的。

关键词(KeyWords)： 超高强度钻杆钢;屈服强度;抗拉强度;温度敏感系数;断口形貌

Abstract:

Keywords:

基金项目(Foundation): 石油管材国家重点实验室资助项目(223117007);; 中国石油天然气集团公司科学研究与技术开发项目(2016-A3905);; 陕西省创新能力支撑计划项目(2017KJXX-01);; 西安石油大学《材料科学与工程学院》省级优势学科;; 研究生创新与实践能力培养项目(YCS19112031)

作者(Author): 许天旱,丁一明,林宏,蔡炎桥,雷志胜

DOI: 10.13289/j.issn.1009-6264.2020-0131

参考文献(References)：

• [1] 李鹤林,田伟,邝献任.油井管供需形势分析与对策[J].钢管,2010,39(1):1-7.LI He-lin,TIAN Wei,KUANG Xian-ren.OCTG supply-demand situation and countermeasures[J].Steel Pipe,2010,39(1):1-7.
• [2] Lu S L,Feng Y R,Luo F Q,et al.Failure analysis of IEU drill pipe wash out[J].International Journal of Fatigue,2005,27(10/12):1360-1365.
• [3] 黄本生,陈想,陈勇彬,等.石油钻杆材料G105在不同条件下的疲劳断裂[J].材料工程,2016,44(2):107-114.HUANG Ben-sheng,CHEN Xiang,CHEN Yong-bin,et al.Mechanism of fatigue fracture of G105 drill pipe material under different conditions[J].Journal of Materials Engineering,2016,44(2):107-114.
• [4] Bajvani G A,Mishra B,Olson D L.Effect of temperature on the loss of ductility of S-135 grade drill pipe steel and characterization of corrosion products in CO2 containing environments[J].Metallurgical and Materials Transactions A,2011,43(8),2850-2856.
• [5] Hu F,Han L H,Wang H,et al.Precipitation behavior and its effect on strengthening of high strength and toughness drill pipe steel[J].Advanced Materials Research,2011,335-336:587-594.
• [6] 王少杰,韩靖,曾伟,等.低温对ER8车轮钢力学性能的影响[J].材料研究学报,2018,32(6):401-408.WANG Shao-jie,HAN Jing,ZENG Wei,et al.Effect of low temperature on mechanical properties of ER8 steel for wheel rim[J].Chinese Journal of Materials Research,2018,32(6):401-408.
• [7] 赵卓.回火温度对15Cr12MoVN钢拉伸性能及断裂行为的影响[J].材料热处理学报,2018,39(11):74-79.ZHAO Zhuo.Effects of tempering temperature on tensile properties and fracture behavior of 15Cr12MoVN steel[J].Transactions of Materials and Heat Treatment,2018,39(11):74-79.
• [8] Wang Y,Liu X,Shi Y.Experimental study on impact toughness of 960 MPa high strength steel and its butt weld at low temperature[J].Journal of Building Materials,2014,17(5):915-919.
• [9] 高红梅,文超,孙轶山.显微组织和温度对42CrMo4钢力学性能的影响[J].材料热处理学报,2018,39(3):87-92.GAO Hong-mei,WEN Chao,SUN Yi-shan.Effects of microstructure and temperature on mechanical properties of 42CrMo4 steel[J].Transactions of Materials and Heat Treatment,2018,39(3):87-92.
• [10] Gennari C,Pezzato L,Piva E,et al.Influence of small amount and different morphology of secondary phases on impact toughness of UNS S32205 Duplex Stainless Steel[J].Materials Science and Engineering A,2018,729:149-156.
• [11] Yan J B,Liew J Y R,Zhang M H,et al.Mechanical properties of normal strength mild steel and high strength steel S690 in low temperature relevant to Arctic environment[J].Materials and Design,2014,61:150-159.
• [12] Chen X D,Lai J W,Chang X L,et al.Compressive mechanical properties of HTPB propellant at low temperatures and high strain rates[J].Results in Physics,2017,7:4079-4084.
• [13] Xie J,Zhao X Q,Yan J B.Mechanical properties of high strength steel strand at low temperatures:tests and analysis[J].Construction and Building Materials,2018,189:1076-1092.
• [14] Brnic J,Turlaj G,Canadija M,et al.Creep behavior of high-strength low-alloy steel at elevated temperatures[J].Materials Science and Engineering A,2009,499(1/2):23-27.
• [15] Brnic J,Niu J,Turlalj G,et al.Behavior of HSLA A709 steel under different environmental conditions[J].Journal of Wuhan University of Technology-Materials Science Edition,2010,25(6):897-902.
• [16] Morovat M A,Lee J W,Engelhardt M D,et al.Creep properties of ASTM A992 steel at elevated temperatures[J].Advanced Materials Research,2015,446-449:786-792.
• [17] 刘瑛,张新明,李慧中,等.2519铝合金的低温拉伸力学性能[J].中南大学学报(自然科学版),2006,37(4):641-645.LIU Ying,ZHANG Xin-ming LI Hui-zhong,et al.Tensile properties of 2519 aluminum alloy at low temperature[J].Central South University(Science and Technology),2006,37(4):641-645.
• [18] Bsainski Z S,Christian J W.Mechanical Properties of Metals at Low Temperatures[M].Advanced Cryogenic Engineering,1960.
• [19] 于庆波,孙莹,黄传辉,等.屈强比对塑性影响的研究[J].塑性工程学报,2009,16(1):153-155.YU Qing-bo,SUN Ying,HUANG Chuan-hui,et al.Research of yield-strength ratio on the plasticity[J].Journal of Plasticity Engineering,2009,16(1):153-155.
• [20] 舒志强,欧阳志英,龚丹梅.高钢级钻杆强度塑性试验研究[J].石油钻探技术,2017,45(5):53-59.SHU Zhi-qiang,OU-YANG Zhi-ying,GONG Dan-mei.Study on strength and plasticity of high steel grade drill pipe[J].Petroleum Drilling Techniques,2017,45(5):53-59.
• [21] Rowcloffe A F,Robertson J P,Klueh R L,et al.Fracture toughness and tensile behavior of ferritic-matensitic steels irradiated at low temperatures[J].Journal of Nuclear Materials,1998,258-263(2):1275-1279.
• [22] Sp?tig P,Odeete E G R,Lucas G E.Low temperature yield properties of two7-9Cr ferritic/martensitic steels[J].Journal of Nuclear Materials,1999,275(3):324-331.
• [23] 王元清,林云,张延年,等.高强度钢材Q460C低温力学性能试验[J].沈阳建筑大学学报(自然科学版),2011,27(4):646-652.WANG Yuan-qing,LI Yun,ZHANG Yan-nian,et al.Experimental study on the mechanical properties of Q460C the high strength construction steel at low temperature[J].Journal of Shenyang Jianzhu University (Natural Science),2011,27(4):646-652.
• [24] 王元清,武延民,石永久,等.低温对结构钢材主要力学性能影响的试验研究[J].铁道科学与工程学报,2005,2(1):1-4.WANG Yuan-qing,WU Yan-min,SHI Yong-jiu,et al.Experimental study on the main mechanical parameters of building steel under low temperature[J].Journal of Railway Science and Engineering,2005,2(1):1-4.
• [25] 张世英,郭金,张伟强.40CrNi2Mo钢的低温力学性能[J].机械工程材料,2010,34(11):79-82.ZHANG Shi-ying,GUO Jin,ZHANG Wei-qiang.Mechanical properties of 40CrNi2Mo steel at low temperatures[J].Materials for Mechanical Engineering,2010,34(11):79-82.
• [26] 张波,范华,张邦强.34CrNiMo6材料低温韧性研究[J].东方电气评论,2013,27(1):38-43.ZHANG Bo,FAN Hua,ZHANG Bang-qiang.Toughness research of 34CrNiMo6 at low temperature[J].Dongfang Electric Review,2013,27(1):38-43.
• [27] Zhu M L,Xuan F Z.Effects of temperature on tensile and impact behavior of dissimilar welds of rotor steels[J].Materials and Design,2010,31(7):3346-3352.

文章评论(Comment)：