Effect of Burning Temperature and Cooling Way on Microstructure and Mechanical Properties of 12Cr1MoV Steel

LI Xiaokai; GUAN Kaishu

doi:DOI: 10.11973/jxgccl202303006

Materials and Mechanical Engineering > 2023 > 47(3): 31-36. > DOI: DOI: 10.11973/jxgccl202303006

LI Xiaokai, GUAN Kaishu. Effect of Burning Temperature and Cooling Way on Microstructure and Mechanical Properties of 12Cr1MoV Steel[J]. Materials and Mechanical Engineering, 2023, 47(3): 31-36. DOI: DOI: 10.11973/jxgccl202303006

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Effect of Burning Temperature and Cooling Way on Microstructure and Mechanical Properties of 12Cr1MoV Steel

Key Laboratory of Pressure System and Safety (MOE), School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China

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Received Date: October 21, 2021
Revised Date: October 17, 2022

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Abstract

Abstract

12Cr1MoV steel was heated to different temperatures (650, 750, 850, 950, 1 050,1 150 °C) for 3 h and then air-cooled and water-cooled, respectively, to simulate the burning process at fire sites. The effect of the burning temperature and cooling way on the microstructure and mechanical properties of the test steel was studied by metallographic inspection, small punch tests, tensile tests and hardness measurement. The results show that when the fire temperature was not higher than 750 ℃, the microstructure of the test steel mainly consisted of ferrite, pearlite and carbide under air cooling and water cooling, and the change of strength, percentage elongation after fracture and hardness was small with the burning temperature. Under air cooling, when the burning temperature was higher than 750 ℃, the test steel experienced an increase in grain size and pearlite conten, leading to an increase in strength and a decrease in percentage elongation after fracture. Under water cooling, when the burning temperature was higher than 750 ℃, martensite appeared in the structure of the test steel. The content of martensite increased with the burning temperature rising, resulting in an increase in strength and hardness and a decrease in percentage elongation after fracture of the test steel.
- 12Cr1MoV steel,
- small punch test,
- burning temperature,
- cooling way,
- strength,
- microstructure

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[1]	王贞,刘静,鲁修宇,等.热处理工艺对12Cr1MoV钢组织性能的影响[J].热处理技术与装备,2012,33(2):10-14. WANG Z,LIU J,LU X Y,et al.Effects of heat treatment process on the microstructures and properties of 12Cr1MoV steel[J].Heat Treatment Technology and Equipment,2012,33(2):10-14.
[2]	李伟,戴澄,郭达天.炼化企业设备完整性管理体系初始状况评审实践[J].中国设备工程,2021(21):53-54. LI W,DAI C,GUO D T.Review practice of initial status of equipment integrity management system in refining and chemical enterprises[J].China Plant Engineering,2021(21):53-54.
[3]	BAIK J M,KAMEDA J,BUCK O.Small punch test evaluation of intergranular embrittlement of an alloy steel[J].Scripta Metallurgica,1983,17(12):1443-1447.
[4]	MAO X Y,TAKAHASHI H.Development of a further-miniaturized specimen of 3 mm diameter for TEM disk (ø3 mm) small punch tests[J].Journal of Nuclear Materials,1987,150(1):42-52.
[5]	关凯书,王志文,徐彤,等.小冲杆试验方法标准化研究(二):材料室温拉伸性能的确定[J].压力容器,2010,27(8):40-46. GUAN K S,WANG Z W,XU T,et al.Study on standardization of small punch test(2):Tensile properties at room temperature[J].Pressure Vessel Technology,2010,27(8):40-46.
[6]	FERNÁNDEZ M,RODRÍGUEZ C,BELZUNCE F J,et al.Use of small punch test to estimate the mechanical properties of sintered products and application to synchronizer hubs[J].Metal Powder Report,2017,72(5):355-360.
[7]	SONG M,GUAN K S,QIN W,et al.Comparison of mechanical properties in conventional and small punch tests of fractured anisotropic A350 alloy forging flange[J].Nuclear Engineering and Design,2012,247:58-65.
[8]	钟继如.基于混合粒子群算法的小冲杆试验预测材料强度的研究[D].上海:华东理工大学,2019. ZHONG J R.Study on predicting material strength using small punch test and hybride particle swarm optimization[D].Shanghai:East China University of Science and Technology,2019.
[9]	董常福, 胡大. 显微组织对12Cr1MoV耐热钢力学性能的影响[J]. 涟钢科技与管理, 2019(4):6-9. DONG C F,HU D.Effect of microstructure on mechanical properties of 12Cr1MoV heat-resistant steel[J].LYS Science-Technology & Management,2019(4):6-9.
[10]	尚艳涛,小冲杆试验影响因素分析及对受火材料的强度评估[D].上海:华东理工大学,2021. SHANG Y T. Analysis of influencing factors of small punch rod test and strength evaluation of fire material[D].Shanghai:East China University of Science and Technology,2021.
[11]	CALAF-CHICA J,BRAVO DÍEZ P M,PRECIADO CALZADA M,et al.Optimization of the t/10 offset correlation method to obtain the yield strength with the small punch test[J].Journal of Nuclear Materials,2020,534:152177.
[12]	宋文强,李尚林.热处理工艺对12Cr1MoV钢显微组织和力学性能的影响[J].理化检验(物理分册),2017,53(2):97-100. SONG W Q,LI S L.Effect of heat treatment process on microstructure and mechanical properties of 12Cr1MoV steel[J].Physical Testing and Chemical Analysis (Part A:Physical Testing),2017,53(2):97-100.
[13]	ABDOLLAH-ZADEH A,SALEMI A,ASSADI H.Mechanical behavior of CrMo steel with tempered martensite and ferrite-bainite-martensite microstructure[J].Materials Science and Engineering:A,2008,483/484:325-328.
[14]	WANG B B,XIE G M,WU L H,et al.Grain size effect on tensile deformation behaviors of pure aluminum[J].Materials Science and Engineering:A,2021,820:141504.
[15]	LIU B C,WANG K,BAO R,et al.The effects of α/β phase interfaces on fatigue crack deflections in additively manufactured titanium alloy:A peridynamic study[J].International Journal of Fatigue,2020,137:105622.
[16]	邹章雄,项金钟,许思勇.Hall-Petch关系的理论推导及其适用范围讨论[J].物理测试,2012,30(6):13-17. ZOU Z X,XIANG J Z,XU S Y.Theoretical derivation of hall-petch relationship and discussion of its applicable range[J].Physics Examination and Testing,2012,30(6):13-17.

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