搪瓷烧制工艺对DC01EK搪瓷用钢组织性能的影响
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摘要
对DC01EK冷轧搪瓷钢进行了析出物分析及抗鳞爆敏感性测试。采用电阻炉模拟搪瓷烧制工艺,研究了不同的烧制温度对实验钢微观组织的影响。结果表面, DC01EK搪瓷用钢材料中析出物主要为TiN,且存在着弥散分布的Ti (C, N)。经过模拟搪瓷烧制后,组织没有明显变化,随着搪烧温度的升高,铁素体晶粒尺寸呈增大趋势,珠光体含量降低,钢中大颗粒析出物逐渐消失。实验钢中添加了钛元素来增加钢中氢陷井数量,氢渗透时间明显大于临界值,抗鳞爆性能达到指标,经过模拟搪烧后,抗鳞爆性能降低,且随着搪烧温度越高降低效果越显著。
The precipitates, anti-scale detonation sensitivity of EC01 EK cold rolled enamel steel were valued. The enamel firing process was stimulated by resistance furnace, and the influences of different processing temperatures on microstructure were studied. The results show that the main precipitates in DC01 EK is TiN, and a number of Ti(C, N) were diffusely distributed. After the stimulation enamel firing process, the microstructure was almost the same, while the grain size of ferrite increased, pearlite content decreased and large particle precipitates disappeared as the raise of processing temperature. Due to addition of titanium in the experimental steel, the hydrogen penetration time got much longer than the critical value and the scale resistance can meet the requirement. After stimulation enamel firing, the scale resistance got worse as enamel firing temperature raised.
The precipitates, anti-scale detonation sensitivity of EC01 EK cold rolled enamel steel were valued. The enamel firing process was stimulated by resistance furnace, and the influences of different processing temperatures on microstructure were studied. The results show that the main precipitates in DC01 EK is TiN, and a number of Ti(C, N) were diffusely distributed. After the stimulation enamel firing process, the microstructure was almost the same, while the grain size of ferrite increased, pearlite content decreased and large particle precipitates disappeared as the raise of processing temperature. Due to addition of titanium in the experimental steel, the hydrogen penetration time got much longer than the critical value and the scale resistance can meet the requirement. After stimulation enamel firing, the scale resistance got worse as enamel firing temperature raised.
引文
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[12]OKUYAMAS T,NISHIMOTO A,KUROKAWA TNew Type Cold Rolled SteelSheet for Enameling Produced by the Continuous Casting Method[J]Viterous Enameller,1990,41(3):49.
[2]SILVERSTEIN R,ELIEZER D,BOELLINGHAUS THydrogen-trapping mechanisms of TIG-welded 316Laustenitic stainless steels[J].Mater Sci,2018,53(14):10 457-10 468.
[3]SILVERSTEIN R,GLAM B,ELIEZER D,et al Dynamic deformation of hydrogen charged austeniticferritic steels:Hydrogen trapping mechanisms,and simulations[J].Alloy Compd,2018,173:1 238-1 246
[4]SILVERSTEIN R,ELIEZER D.Mechanisms of hydrogen trapping in austenitic,duplex,and super martensitic stainless steels[J].Alloy Compd,2017,720:451-459
[5]蒋元慧,胡树兵.搪瓷钢及焊接组织的涂搪性与氢渗透性能[J].材料热处理报,2017,38(06):109-115.
[6]XUE F,DONG F T,TIAN Y Q,et al.Effect of Coiling Temperature on Ti(C,N)Precipitation and Properties of Batch Annealed DC06EK Enamel Steel[J].Wuhan Univ Technol,2018,33(3):697-702.
[7]李黎,肖宗益,刘宇,等.AlN析出对DC01搪瓷用钢鳞爆性能的影响[J].钢铁,2018,53(01):83-87.
[8]叶姜,樊雷.深冲搪瓷钢DC03EK析出物及其抗鳞爆性能分析[J].中国冶金,2018,28(12):41-44..
[9]张宜,吴红艳,吴桐,等.搪瓷烧制工艺对210 MPa搪瓷钢组织与性能的影响[J].金属热理,2016,41(08):94-98.
[10]李和田,张少宗,方健.碳含量对BTC1冷轧搪瓷钢搪烧后力学性能的影响[J].物理测试,2016,34(05):8-11.
[11]董福涛,薛飞,杜林秀,等.碳含量对超低碳含钛冷轧搪瓷钢性能的影响[J].材料研究学报,2017,31(12):887-893.
[12]OKUYAMAS T,NISHIMOTO A,KUROKAWA TNew Type Cold Rolled SteelSheet for Enameling Produced by the Continuous Casting Method[J]Viterous Enameller,1990,41(3):49.