刘晓玮, 周光杰, 金韬, 汪后明. 40mm厚原油储罐用12MnNiVR在线淬火工艺研究[J]. 金属加工(热加工).
引用本文: 刘晓玮, 周光杰, 金韬, 汪后明. 40mm厚原油储罐用12MnNiVR在线淬火工艺研究[J]. 金属加工(热加工).
LIU XiaoWei, zhou , jin Tao, wang HouMing. Study ondirect-quenching 12MnNiVR steel for crude oil storage tank[J]. MW Metal Forming.
Citation: LIU XiaoWei, zhou , jin Tao, wang HouMing. Study ondirect-quenching 12MnNiVR steel for crude oil storage tank[J]. MW Metal Forming.

40mm厚原油储罐用12MnNiVR在线淬火工艺研究

Study ondirect-quenching 12MnNiVR steel for crude oil storage tank

  • 摘要: 对40 mm厚12MnNiVR轧后离线淬火+离线回火和在线直接淬火+离线回火两种热处理工艺进行试验,分析了两种不同热处理方式下试验钢组织和性能的影响。结果表明:两种热处理工艺路径均能满足12MnNiVR性能要求,在线直接淬火+离线回火热处理工艺路径下强度余量较好,回火工艺窗口适中,试验钢经模拟焊后热处理后拉伸、冲击均无明显变化。

     

    Abstract: Two heat treatment experiments of offline-quenching plus offline-tempering (Q+T) and direct-quenching plus offline-tempering (DQ+T) were conducted on steel of 12MnNiVR whose thickness is 40 mm to study the effect of the different heat treatment processes on the microstructural evolution and mechanical properties. The results show that the DQ+T process has a better strength margin indicating the moderate tempering process window even though the Q+T process can also meet the performance requirements. Furthermore, the different heat treatment processes have no impact on the mechanical property after post-weld heat treatment with the performance of strength and impact results.

     

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