热处理工艺对新型低温油井管用钢组织和性能的影响

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	热处理工艺对新型低温油井管用钢组织和性能的影响
其他题名	Effect of heat treatment on microstructure and mechanical properties of new low-temperature oil well steel
	易善伟 1; 历长云 1; 胡小强 2; 刘宏伟 2; 郑雷刚 2; 米国发 1; 许敬月 3; 秦卓 3; 赵子文 3
	2018
发表期刊	材料热处理学报
ISSN	1009-6264
卷号	39.0 期号:006 页码:68-75
摘要	借助光学显微镜、扫描电镜、拉伸试验机等研究了热处理工艺对自主设计的新型高强、高韧、无Ni低温油井管用钢（简称IMR-LS10钢）组织和性能的影响。结果表明：在800～880℃淬火时,随着淬火温度的升高,IMR-LS10钢的平均晶粒尺寸先增大后减小,经650℃回火后的抗拉强度逐渐增大,-45℃低温冲击吸收能量先增大再减小,840℃淬火时达到峰值38.6 J;在880～1000℃淬火时,随着淬火温度的增加,IMR-LS10钢的晶粒尺寸逐渐增大,经650℃回火后的抗拉强度先减小再增大,低温冲击吸收能量逐渐增大;经880℃淬火＋200～750℃回火后IMR-LS10钢抗拉强度逐渐降低;回火温度低于500℃时,IMR-LS10钢的低温冲击吸收能量缓慢增加,当回火温度达到550℃时,低温冲击吸收能量达到峰值32.98 J,随后,低温冲击吸收能量出现降低趋势,并在650℃时出现最小值;IMR-LS10钢的最佳调质热处理工艺方案为880℃淬火＋550℃回火。
其他摘要	The effect of heat treatment on microstructure and mechanical properties of a new high-strength high-toughness Ni-free lowtemperature oil well steel（ IMR-LS10 steel） was investigated by means of optical microscope,scanning electron microscopy and tensile testing machine. The results show that in the quenching temperature range of 800-880 ℃,the average prior austenitic grain size of the IMR-LS10 steel first increases then decreases with the increasing of quenching temperature. After tempering at 650 ℃,the tensile strength of the steel increases gradually and the low temperature impact absorption energy at-45 ℃ increases first to a peak value of 38. 6 J at840 ℃ and then decreases. In the quenching temperature range of 880-1000 ℃,the average prior austenitic grain size of the IMR-LS10 steel increases gradually with the increasing of quenching temperature. After tempering at 650 ℃,the low temperature impact absorption energy decreases gradually,and the tensile strength decreases to a valley value and then increases gradually after quenching at 920 ℃.After quenching at 880 ℃ and tempering at 200-750 ℃,the tensile strength of the steel shows a decreasing tendency except a slight rise at 350 ℃ with the increasing of tempering temperature. When the tempering temperature is lower than 500 ℃,the low temperature impactabsorption energy increases slowly,and when the tempering temperature reaches 550 ℃,the low temperature impact absorption energy reaches a peak value of 32. 98 J. Subsequently,the low temperature impact absorption energy decreases and the minimum value appears at650 ℃. The optimal heat treatment process for the steel is quenching at 880 ℃ and tempering at 550 ℃.
关键词	油井管淬火温度回火温度抗拉强度冲击吸收能量
收录类别	CSCD
语种	中文
CSCD记录号	CSCD:6282149
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/148649
专题	中国科学院金属研究所
作者单位	1.河南理工大学 2.中国科学院金属研究所 3.兰州兰石能源装备工程研究院有限公司
推荐引用方式 GB/T 7714	易善伟,历长云,胡小强,等. 热处理工艺对新型低温油井管用钢组织和性能的影响[J]. 材料热处理学报,2018,39.0(006):68-75.
APA	易善伟.,历长云.,胡小强.,刘宏伟.,郑雷刚.,...&赵子文.(2018).热处理工艺对新型低温油井管用钢组织和性能的影响.材料热处理学报,39.0(006),68-75.
MLA	易善伟,et al."热处理工艺对新型低温油井管用钢组织和性能的影响".材料热处理学报 39.0.006(2018):68-75.