热处理工艺对20Cr1Mo1VTiB螺栓钢组织及性能的影响

doi:10.13228/j.boyuan.issn0449-749x.20180238

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (3518 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为了优化20Cr1Mo1VTiB螺栓钢的热处理工艺，采用SEM、TEM和力学性能测试等手段，研究了热处理工艺对该钢组织及性能的影响。结果表明，20Cr1Mo1VTiB钢热处理态组织为贝氏体，主要强化相为VC与针状M3C相。随着淬火温度的提高，VC逐渐溶解，固溶强化作用增加，室温和高温强度上升、韧性下降。在较低温度下回火，贝氏体板条位错密度高、组织应力大，强度高、韧性差；提高回火温度，VC逐渐长大，基体逐渐发生回复，室温和高温强度降低，韧性显著升高。1 030 ℃淬火＋720 ℃回火后，20Cr1Mo1VTiB钢体现出良好的强韧性匹配。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	龚雪婷
	武志广
	李鑫
	彭涛

关键词 ：关键词：20Cr1Mo1VTiB钢, VC, M3C, 力学性能

Abstract：In order to optimize the heat treatment process of 20Cr1Mo1VTiB steel，the effect of heat treatment process on microstructure and mechanical properties of the steel was investigated experimentally by means of SEM，TEM and mechanical properties tests. The results show that the heat treated microstructure of 20Cr1Mo1VTiB steel is bainite，and the main strengthening phase is VC and needle-like M3C. With elevating the quenching temperature，the room and high temperature tensile strengths increase while the toughness decreases duo to the gradual dissolving of VC into the matrix and the increase of solid solution strengthening effect. When the steel is tempered at low temperature，the dislocation density in bainite laths is very high and the microstructure stress is great. This leads to high strength and low toughness of the steel. While with increasing the tempering temperature，the room and high temperature tensile strengths decrease and the toughness improves significantly as a result of an increase in VC size and the gradual recovery of the microstructure. 20Cr1Mo1VTiB steel shows a good combination of strength and toughness after quenching at 1 030 ℃ and tempering at 720 ℃.

收稿日期: 2018-06-11 出版日期: 2018-12-24

PACS:

TG142.73

引用本文:

龚雪婷，武志广，李鑫，赵孟雅，彭涛. 热处理工艺对20Cr1Mo1VTiB螺栓钢组织及性能的影响[J]. , 2018, 53(12): 105-111. GONG Xue-ting，WU Zhi-guang，LI Xin，ZHAO Meng-ya，PENG Tao. Effect of heat treatment process on microstructure and mechanical properties of 20Cr1Mo1VTiB steel. Iron and Steel, 2018, 53(12): 105-111.

链接本文:

http://www.chinamet.cn/Jweb_gt/CN/10.13228/j.boyuan.issn0449-749x.20180238 或 http://www.chinamet.cn/Jweb_gt/CN/Y2018/V53/I12/105

[1]	肖广兴, 潘永忠.紧固件用20Cr1Mo1VTiB热强钢介绍[J]. 汽轮机技术, 1981(2):14-19.
[1]	肖广兴, 潘永忠.紧固件用20Cr1Mo1VTiB热强钢介绍[J]. 汽轮机技术, 1981(2):14-19.
[2]	XIAO Guang-xing, PAN Yong-zhong.Introduction of 20Cr1Mo1VTiB heat resistant steel for fasteners[J]. Turbine Technology, 1981(2):14-19.
[2]	XIAO Guang-xing, PAN Yong-zhong.Introduction of 20Cr1Mo1VTiB heat resistant steel for fasteners[J]. Turbine Technology, 1981(2):14-19.
[3]	张传平.20Cr1Mo1VTiB钢粗晶组织对高温紧固件安全性的分析[J]. 机械工程材料, 1984(1):58-60.
[3]	张传平.20Cr1Mo1VTiB钢粗晶组织对高温紧固件安全性的分析[J]. 机械工程材料, 1984(1):58-60.
[4]	ZHANG Chuan-ping.Safety analysis of coarse grain structure of 20Cr1Mo1VTiB steel on high temperature fasteners[J]. Materials for Mechanical Engineering, 1984(1):58-60.
[4]	ZHANG Chuan-ping.Safety analysis of coarse grain structure of 20Cr1Mo1VTiB steel on high temperature fasteners[J]. Materials for Mechanical Engineering, 1984(1):58-60.
[5]	符长璞, 潘景达.长期时效下20Cr1Mo1VTiB和C422钢力学性能的对比研究[J]. 材料热处理学报, 1991(3):17-22.
[5]	符长璞, 潘景达.长期时效下20Cr1Mo1VTiB和C422钢力学性能的对比研究[J]. 材料热处理学报, 1991(3):17-22.
[6]	FU Chang-pu, PAN Jing-da.Contrasting study of mechanical properties or 20Cr1Mo1VTiB and C422 steels under condition of long-term aging.[J]. Transactions of metal heat treatment, 1991(3):17-22.
[6]	FU Chang-pu, PAN Jing-da.Contrasting study of mechanical properties or 20Cr1Mo1VTiB and C422 steels under condition of long-term aging.[J]. Transactions of metal heat treatment, 1991(3):17-22.
[7]	丁勇.20Cr1Mo1VTiB钢Ti的控制[J]. 特钢技术, 2005(4):14-16.
[7]	丁勇.20Cr1Mo1VTiB钢Ti的控制[J]. 特钢技术, 2005(4):14-16.
[8]	DIMG Yong.Controlling Ti in 20Cr1Mo1VTiB steel[J]. Special Steel Technology, 2005(4):14-16.
[8]	DIMG Yong.Controlling Ti in 20Cr1Mo1VTiB steel[J]. Special Steel Technology, 2005(4):14-16.
[9]	奚杰峰, 马延会, 陈锐.国产20Cr1Mo1VTiB主汽门螺栓的失效机理研究[J]. 热加工工艺, 2015(2):234-236.
[9]	奚杰峰, 马延会, 陈锐.国产20Cr1Mo1VTiB主汽门螺栓的失效机理研究[J]. 热加工工艺, 2015(2):234-236.
[10]	XI Jie-feng, MA Yan-hui, CHEN Rui.Analysis on bolt fracture of high-pressure main stop valve of turbine[J]. Hot Working Technology, 2015(2):234-236.
[10]	XI Jie-feng, MA Yan-hui, CHEN Rui.Analysis on bolt fracture of high-pressure main stop valve of turbine[J]. Hot Working Technology, 2015(2):234-236.
[11]	邢春林.20Cr1Mo1V1钢热处理工艺性能生产试验研究[J]. 汽轮机技术, 1985(3):40-46.
[11]	邢春林.20Cr1Mo1V1钢热处理工艺性能生产试验研究[J]. 汽轮机技术, 1985(3):40-46.
[12]	XING Chun-lin.Experimental study on heat treatment process of 20Cr1Mo1V1 steel[J]. Turbine Technology, 1985(3):40-46.
[12]	XING Chun-lin.Experimental study on heat treatment process of 20Cr1Mo1V1 steel[J]. Turbine Technology, 1985(3):40-46.
[13]	王志武, 宋涛.高温服役× 后汽缸螺栓用钢的应力松弛性能[J].机械工程材料, 2013, 37(2):74-77
[13]	王志武, 宋涛.高温服役× 后汽缸螺栓用钢的应力松弛性能[J].机械工程材料, 2013, 37(2):74-77
[14]	WANG Zhi-wu, SONG Tao.Stress relaxation of 20Cr1Mo1V1 steel for cylinder bolt after working for 3×105 h at high temperature[J].Materials for Mechanical Engineering, 2013, 37(2):74-77
[14]	WANG Zhi-wu, SONG Tao.Stress relaxation of 20Cr1Mo1V1 steel for cylinder bolt after working for 3×105 h at high temperature[J].Materials for Mechanical Engineering, 2013, 37(2):74-77
[15]	胡洁梓, 杨点中.20Cr1Mo1VTiB汽机主汽门螺栓断裂失效分析[J]. 宁夏电力, 2013(1):48-50.
[15]	胡洁梓, 杨点中.20Cr1Mo1VTiB汽机主汽门螺栓断裂失效分析[J]. 宁夏电力, 2013(1):48-50.
[16]	HU Jie-zi, YANG Dian-zhong.Failure analysis of 20Cr1Mo1VTi B bolts rupture for main stop valve of steam turbine[J]. Ningxia Electric Power, 2013(1):48-50.
[16]	HU Jie-zi, YANG Dian-zhong.Failure analysis of 20Cr1Mo1VTi B bolts rupture for main stop valve of steam turbine[J]. Ningxia Electric Power, 2013(1):48-50.
[17]	龚正春, 孔令勤, 刘淑珍, 等.热处理工艺对紧固件性能的影响[J].热能动力工程, 2000, 15(2):38-43
[17]	龚正春, 孔令勤, 刘淑珍, 等.热处理工艺对紧固件性能的影响[J].热能动力工程, 2000, 15(2):38-43
[18]	GONG Zheng-chun, KONG Ling-hui, LIU Shu-zhen, et, al.Effect of heat treatment process on properties of 20Cr1Mo1V1 fasteners[J].Journal of Engineering for Thermal Energy and Power, 2000, 15(2):38-43
[18]	GONG Zheng-chun, KONG Ling-hui, LIU Shu-zhen, et, al.Effect of heat treatment process on properties of 20Cr1Mo1V1 fasteners[J].Journal of Engineering for Thermal Energy and Power, 2000, 15(2):38-43
[19]	彭涛, 曹建春, 杨钢, 等.预备热处理对钢组织及性能的影响[J].钢铁, 2016, 51(8):64-69
[19]	彭涛, 曹建春, 杨钢, 等.预备热处理对钢组织及性能的影响[J].钢铁, 2016, 51(8):64-69
[20]	PENG Tao, CAO Jian-chun, YANG Gang, et al.Effect of preheat treatment on microstructure and mechanical properties of AMS 6308 steel[J].Iron and Steel, 2016, 51(8):64-69
[20]	PENG Tao, CAO Jian-chun, YANG Gang, et al.Effect of preheat treatment on microstructure and mechanical properties of AMS 6308 steel[J].Iron and Steel, 2016, 51(8):64-69