高强耐候钢YQ450NQR1钒氮微合金化

doi:10.13228/j.boyuan.issn0449-749x.20160428

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Abstract V-N microalloying is a main method to improve the yield strength of weathering steel YQ450NQR1. The performance of high strength weathering steel YQ450NQR1 microalloyed with vanadium and nitrogen is mainly influenced from vanadium and nitrogen，i.e.，the vanadium mainly plays a part of the grain refinement and precipitation strengthening，and the main function of nitrogen is to strengthen the role of vanadium. Through the research of the product of vanadium and?nitrogen[w(V)·w(N)]in high strength weathering steel YQ450NQR1，it is found that with the increase of vanadium content and nitrogen content，the yield strength of the steel is improved，and the yield strength is influenced by the product of vanadium and nitrogen[w(V)·w(N).] In order to guarantee the yield strength of weathering steel YQ450NQR1 up to 465 MPa，the product of vanadium and nitrogen[w(V)·w(N)]should be over 0.001 44. In order to improve the ductility of the continuous casting slab at high temperature and reduce the cracking sensitivity of the cast slab，the nitrogen should be controlled in the range of 0.012%-0.014%.

Received: 20 September 2016 Published: 04 May 2017

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	QING Jia-Qing

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QING Jia-Qing. V-N microalloying of high strength weathering steel YQ450NQR1[J]. Iron and Steel, 2017, 52(5): 87-93.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20160428 OR http://www.chinamet.cn/Jweb_gt/EN/Y2017/V52/I5/87

[1]	贾晖．铁路车辆用耐候钢的现状及发展[J]．武钢技术，2003，41（3）: 59-63．
[1]	贾晖．铁路车辆用耐候钢的现状及发展[J]．武钢技术，2003，41（3）: 59-63．
[2]	杨才福，张永权．钒氮微合金化技术在HSLA钢中的应用[J]．钢铁，2002，37（11）：42-47．
[2]	杨才福，张永权．钒氮微合金化技术在HSLA钢中的应用[J]．钢铁，2002，37（11）：42-47．
[3]	Lv Y, Sheng G, Jiao Y. Effect of V/N ratio on the high strain and low cycle fatigue behaviors of V–N microalloyed rebars[J]. Construction and Building Materials, 2014, 69: 18-25.
[3]	Lv Y, Sheng G, Jiao Y. Effect of V/N ratio on the high strain and low cycle fatigue behaviors of V–N microalloyed rebars[J]. Construction and Building Materials, 2014, 69: 18-25.
[4]	王霏．钒氮微合金化对高强度耐候钢组织与性能的影响（硕士毕业论文）[D]．内蒙古：内蒙古科技大学，2009．
[4]	王霏．钒氮微合金化对高强度耐候钢组织与性能的影响（硕士毕业论文）[D]．内蒙古：内蒙古科技大学，2009．
[5]	姜德刚，智建国，刘振成．钒氮微合金化提高高强乙字钢的低温冲击韧性[J]．包钢科技，2008，34（4）：52-55．
[5]	姜德刚，智建国，刘振成．钒氮微合金化提高高强乙字钢的低温冲击韧性[J]．包钢科技，2008，34（4）：52-55．
[6]	N．Hamidreza, R．Jafar and A．Siroos．As-cast mechanical properties of vanadium/niobium microalloyed steels[J]．Materials Science and Engineering A．2008，486（15）：1-7．
[7]	李文远，赵征志，赵爱民等．钒氮微合金化高强耐候钢开发研究[J]．材料热处理技术，2012，41（24）：101-104，108．
[6]	N．Hamidreza, R．Jafar and A．Siroos．As-cast mechanical properties of vanadium/niobium microalloyed steels[J]．Materials Science and Engineering A．2008，486（15）：1-7．
[8]	康卓，马党参，刘建华．钒氮微合金化技术在高强度钢中的应用[J]．天津冶金，2008，6：34-36，79．
[7]	李文远，赵征志，赵爱民等．钒氮微合金化高强耐候钢开发研究[J]．材料热处理技术，2012，41（24）：101-104，108．
[8]	康卓，马党参，刘建华．钒氮微合金化技术在高强度钢中的应用[J]．天津冶金，2008，6：34-36，79．
[9]	Xu W W, Wang Q F, Pan T, et al. Effect of welding heat input on simulated HAZ microstructure and toughness of a VN microalloyed steel[J]. Journal of Iron and Steel Research, International, 2007, 14(5): 234-239.
[9]	Xu W W, Wang Q F, Pan T, et al. Effect of welding heat input on simulated HAZ microstructure and toughness of a VN microalloyed steel[J]. Journal of Iron and Steel Research, International, 2007, 14(5): 234-239.