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| 1 | 提高S135钻杆强韧性的热处理工艺研究显示文摘采用等温淬火工艺和回火工艺对S135钻杆管体进行热处理,研究了等温淬火时间和回火温度对其强韧性的影响。试验结果表明:随着等温淬火时间的延长和回火温度的提高,钻杆管体材料的屈服强度和拉伸强度下降,而塑性和韧性指标上升;等温淬火时间和中低温回火对其韧性影响较小。介绍了显著提高钻杆管体材料韧性的热处理工艺制度。经该工艺处理后S135钻杆管体的屈服强度指标不变或降低3.5%,韧性指标明显上升,增幅达38%。 | 何石磊 蔡和平 韩礼红 | 2011 | 钢管2011,40,S1: | 8 |
| 2 | 回火温度对26CrMo钻杆钢显微组织和力学性能的影响显示文摘采用力学性能测试、组织观察等方法研究回火温度对26CrMo钢显微组织和力学性能的影响。结果表明,26CrMo钢经540~690℃回火,随回火温度升高,显微组织中a相基体逐渐发生回复与再结晶,组织中马氏体形态逐渐消失,碳化物先在马氏体板条边界呈片状或棒状析出,逐渐演变为颗粒状弥散分布,690℃时碳化物在晶界聚集长大、球化。随回火温度升高,26CrMo钢强度逐渐降低,塑性、韧性逐渐增大;不同回火条件下,抗拉强度、屈服强度、延伸率和冲击功满足API 5DP标准中各级别钻杆要求。随回火温度升高,26CrMo钢总冲击功、起裂功和裂纹扩展功均逐渐增大,裂纹扩展功是起裂功的3倍以上,且两者比值变化不明显,表现出良好的抗裂纹扩展能力。不同回火温度下冲击性能的变化与其强度、塑性变化密切相关,冲击韧性好坏主要由塑性大小决定。 | 舒志强 袁鹏斌 欧阳志英 龚丹梅 白雪明 | 2017 | 金属学报2017,53,6: | 7 |
| 3 | 渗碳齿轮盐浴分级淬火工艺研究及应用显示文摘介绍了渗碳齿轮盐浴分级淬火的机理及其优缺点,阐述和分析了盐浴温度、含水量、搅拌3种主要因素对盐浴介质冷却能力、渗碳齿轮畸变和组织性能的影响。并指出通过优化盐浴淬火工艺参数,结合渗碳齿轮具有的层状特性,采用盐浴分级淬火技术能有效控制齿轮畸变,获得较好的表面组织、较高的硬度及心部韧性。根据该工艺的研究现状,指出相关数据的匮乏和有待进一步研究的问题。 | 张峦 王爱香 李宝奎 顾敏 | 2015 | 金属热处理2015,40,3: | 3 |
| 4 | Effect of Multi-Step Tempering on Retained Austenite and Mechanical Properties of Low Alloy Steel显示文摘The effect of multi-step tempering on retained austenite content and mechanical properties of low alloy steel used in the forged cold back-up roll was investigated.Microstructural evolutions were characterized by optical microscope,X-ray diffraction,scanning electron microscope and Feritscope,while the mechanical properties were determined by hardness and tensile tests.The results revealed that the content of retained austenite decreased by about 2% after multi-step tempering.However,the content of retained austenite increased from 3.6% to 5.1% by increasing multi-step tempering temperature.The hardness and tensile strength increased as the austenitization temperature changed from 800 to 920 ℃,while above 920 ℃,hardness and tensile strength decreased.In addition,the maximum values of hardness,ultimate and yield strength were obtained via triple tempering at 520 ℃,while beyond 520 ℃,the hardness,ultimate and yield strength decreased sharply. | Hamid Reza Bakhsheshi-Rad Ahmad Monshi Hossain Monajatizadeh Mohd Hasbullah Idris Mohammed Rafiq Abdul Kadir Hassan Jafari | 2011 | Journal of Iron and Steel Research(International)2011,18,12: | 2 |
| 5 | 淬火油温对40CrMnMo钢钻杆组织和性能的影响显示文摘利用硬度测试、显观组织观察、力学性能及冲击性能测试等研究淬火油温对40CrMnMo钢钻杆淬火态的显微组织和截面硬度,回火态的拉伸性能和冲击吸收能量的影响。结果表明,淬火油温对钻杆的微观组织和硬度影响显著,进一步影响回火后的力学性能、屈强比和冲击吸收能量。随着淬火油温的升高,冷却速度先升高后降低,油温30~50℃为宜,淬透性好,微观组织均匀,晶粒细小,回火后力学性能好,屈强比高,具有较高的冲击性能和较好的韧性,综合性能良好。 | 钟彬 陈义庆 李琳 高鹏 伞宏宇 艾芳芳 田秀梅 | 2022 | 金属热处理2022,47,6: | 1 |
| 6 | 低温PSL-3S135钻杆用无缝钢管的开发显示文摘介绍了低温PSL-3 S135钻杆用无缝钢管的主要技术指标、钢种设计、生产工艺流程及力学性能检测结果。通过合金化技术、纯净钢冶炼、控制轧制、热处理等手段,保证了PSL-3 S135钻杆用无缝钢管具有较高的屈服强度,同时又具有良好的低温冲击韧性和优良的高温强度。检测结果表明:生产的低温PSL-3 S135钻杆用无缝钢管的屈服强度高于950 MPa,-20℃管体纵向全尺寸冲击功∧100 J,可以保证该S135钻杆在苛刻条件下的使用安全性。 | 周国帅 周家祥 周晓锋 刘江成 窦志超 | 2016 | 钢管2016,45,6: | 1 |
| 7 | 复相化钻杆在循环应力下断裂行为研究显示文摘采用疲劳试验、扫描电镜动态拉伸装置和透射电镜,研究了复相化钻杆的疲劳强度和在循环应力作用下裂纹萌生、扩展的特点,并分析讨论了显微组织对钻杆疲劳断裂行为的影响。研究结果表明:下贝氏体组织或下贝氏体/马氏体界面可使钻杆的显微断裂模式由沿晶+穿晶断裂转变为穿晶断裂,增加了裂纹转折和二次裂纹,提高了材料的裂纹扩展抗力。在钻杆材料中引入适当比例的下贝氏体+马氏体复相组织,明显增长了裂纹萌生周期,可使钻杆在机械性能相近情况下具有优于回火索氏体组织的疲劳性能。 | 何石磊 蔡和平 薄国兵 | 2013 | 钢管2013,42,6: | 1 |
| 8 | Effect of Mo on mechanical properties of modified ultrahigh carbon steels after heat-treatment显示文摘Microstructure and mechanical properties of modified ultrahigh carbon(1.6%C)steels with different Mo additions(0,0.3%,0.5%,and 0.8%,mass fraction)were studied in their as-cast and quenched then tempered conditions by optical microscopy,scanning electronic microscopy,X-ray diffraction and hardness and toughness tests,respectively.The results show that the continuous eutectic carbide network structure has been broken down and changed to partial isolated and finer particles embedded in matrix of as-cast alloy by modification.Carbides in both quenched and tempered specimens have been refined effectively after the addition of Mo.Specimen containing 0.5% Mo shows the finest microstructures with carbides dispersed homogeneously in martensite matrix and demonstrates highest impact toughness of 18.4 J/cm2 and hardness of 50 HRC. | 李磊 胡彬 刘生根 刘华山 郑峰 | 2014 | Journal of Central South University2014,21,5: | 0 |