熔体过热处理对FGH4096镍基高温合金纯净化行为及凝固组织的影响
Effect of Melt Overheating Treatment on Pure Purification Behavior and Solidification Microstructure of FGH4096 Nickel-Based Superalloy
摘 要
在不同熔体过热温度(1 415,1 463,1 523℃)和过热时间(10,20,30 min)下对FGH4096镍基高温合金进行熔体过热处理,研究了熔体过热对合金纯净化行为及凝固组织的影响。结果表明:随着熔体过热温度的升高或过热时间的延长,二次枝晶间距逐渐减小;随着过热温度的升高,合金中元素的偏析程度降低,过热时间对元素偏析程度的影响不大;当过热温度为1 415~1 463℃时,熔体主要发生碳-氧反应,吸氮反应较弱,合金中氧含量和氮含量均较低;当熔体过热温度为1 463~1 523℃时,熔体主要发生MgO坩埚分解反应和吸氮反应,因此合金中的氧含量和氮含量均较高。
FGH4096合金
纯净化
偏析
melt overheating
FGH4096 alloy
purification
segregation
Abstract
FGH4096 alloy was treated by melt overheating process under different melt overheating temperatures (1 415,1 463,1 523 ℃) and overheating times (10, 20, 30 min). The influence of melt overheating on the purification behavior and solidification microstructure of the alloy was studied. The results show that with increasing melt overheating temperature or prolonging overheating time, the secondary dendrite spacing decreased gradually. With increasing overheating temperature, the segregation degree of the elements in the alloy decreased, but the influence of the overheating time on the segregation degree was not significant. When the overheating temperature was 1 415-1 463 ℃, carbon-oxygen reaction mainly occurred in the melt , and the nitrogen absorption reaction was weak, resulting in low oxygen and nitrogen content. When the melt overheating temperature was 1 463-1 523 ℃, MgO crucible decomposition reaction and absorbed nitrogen reaction occurred, resulting in high oxygen and nitrogen content in the alloy.
中图分类号 TG156.1 DOI 10.11973/jxgccl202211002
所属栏目 试验研究
基金项目 国家重点研发计划项目(2019YFA0705300);大连市重点领域创新团队支持计划项目(2019RT13);国家自然科学基金重大研究计划培育项目(91860123);国家自然科学基金青年基金资助项目(52004051)
收稿日期 2021/3/15
修改稿日期 2022/6/29
网络出版日期
作者单位点击查看
备注张峰(1995-),男,山西晋中人,硕士研究生
引用该论文: ZHANG Feng,YOU Xiaogang,TAN Yi,ZHUANG Xinpeng,CUI Hongyang,WANG Yiling,CHANG Kai. Effect of Melt Overheating Treatment on Pure Purification Behavior and Solidification Microstructure of FGH4096 Nickel-Based Superalloy[J]. Materials for mechancial engineering, 2022, 46(11): 9～19
张峰,游小刚,谭毅,庄辛鹏,崔弘阳,王以霖,常凯. 熔体过热处理对FGH4096镍基高温合金纯净化行为及凝固组织的影响[J]. 机械工程材料, 2022, 46(11): 9～19
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【7】尤启凡.电子束精炼制备高纯FGH4096母合金及其纯净化行为研究[D].大连:大连理工大学,2019. YOU Q F.Study on preparation of high purity FGH4096 master alloy by electron beam smelting and its purification behavior[D].Dalian:Dalian University of Technology,2019.
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【11】颜晓峰,董建新,石照夏,等.镍基高温合金GH4282的凝固和偏析行为[J].稀有金属材料与工程,2019,48(10):3183-3189. YAN X F,DONG J X,SHI Z X,et al.Solidification and segregation behavior of nickel-based superalloy GH4282[J].Rare Metal Materials and Engineering,2019,48(10):3183-3189.
【12】于洵,王琳琳,欧美琼,等.一种新型高温合金凝固组织和元素偏析行为研究[J].稀有金属材料与工程,2019,48(5):1488-1496. YU X,WANG L L,OU M Q,et al.Solidification characteristic and segregation behavior of a new nickel base K4750 alloy[J].Rare Metal Materials and Engineering,2019,48(5):1488-1496.
【13】谭远过.新型镍基高温合金ЭК151凝固偏析及高温变形行为研究[D].合肥:中国科学技术大学,2019. TAN Y G.Investigation of solidification and high-temperature deformation behavior of Ni-base alloy ЭК151[D].Hefei:University of Science and Technology of China,2019.
【14】裴忠冶,李俊涛,赵明汉,等.熔体过热处理对K465合金晶粒和碳化物的影响[J].钢铁研究学报,2008,20(2):49-52. PEI Z Y,LI J T,ZHAO M H,et al.Influence of melt super-heating treatment on grain and carbides of K465 alloy[J].Journal of Iron and Steel Research,2008,20(2):49-52.
【15】邹敏明,张军,刘林,等.熔体超温处理对DD3单晶高温合金二次枝晶间距的影响[J].金属学报,2008,44(2):155-158. ZOU M M,ZHANG J,LIU L,et al.Effect of the melt superheating treatment on the secondary arm spacing of DD3 single crystal superalloy[J].Acta Metallurgica Sinica,2008,44(2):155-158.
【16】ZHAO L H,TAN Y,SHI S,et al.Microsegregation behavior of Inconel 718 superalloy prepared by electron beam smelting layered solidification technology[J].Journal of Alloys and Compounds,2020,833:155019.
【17】郭晓凡,寇生中,蒲永亮,等.熔体过热处理工艺对GH4169合金组织和力学性能的影响[J].金属功能材料,2015,22(6):29-33. GUO X F,KOU S Z,PU Y L,et al.Effect of melt superheat treatment on microstructure and mechanical properties of GH4169 alloy[J].Metallic Functional Materials,2015,22(6):29-33.
【18】王海锋.熔体超温处理对第三代单晶高温合金凝固过程和组织的影响[D].西安:西北工业大学,2018. WANG H F.Influence of melt superheating treatment on the solidification process and microstructure for A third-generation single crystal superalloy[D].Xi'an:Northwestern Polytechnical University,2018.
【19】杨玉军,王志刚,张玉春,等.高温合金真空感应熔炼过程中的脱氧反应[J].钢铁研究学报,2011,23(增刊2):5-8. YANG Y J,WANG Z G,ZHANG Y C,et al.Deoxidation reaction during vacuum induction melting of solution superalloy[J].Journal of Iron and Steel Research,2011,23(S2):5-8.
【20】薛正良,齐江华,高俊波.超低氧钢熔炼过程中炉衬与钢液的相互作用[J].武汉科技大学学报,2005,28(2):119-121. XUE Z L,QI J H,GAO J B.Interaction between molten steel and lining material in refining of extra-low oxygen steel[J].Journal of Wuhan University of Science and Technology,2005,28(2):119-121.
【21】NIU J P,YANG K N,JIN T,et al.Desulphurization during VIM refining Ni-base superalloy using CaO crucible[J].Journal of Materials Science ＆ Technology,2003,19(1):69-72.
【22】高俊波.真空感应熔炼过程炉衬供氧对钢液深脱氧影响[D].武汉:武汉科技大学,2006. GAO J B.Influence of oxygen contamination from crucible material on deep deoxidation of molten steel during vacuum induction melting[D].Wuhan:Wuhan University of Science and Technology,2006.
【23】刘建民,蒋涛,胡显军.真空感应炉冶炼GH3030氧、氮含量控制工艺[J].真空,2016,53(5):68-71. LIU J M,JIANG T,HU X J.Oxygen and nitrogen content control in melting GH3030 by vacuum induction melting furnace[J].Vacuum,2016,53(5):68-71.
【24】牛建平,单志强,耿双奇,等.镍基高温合金中钛对氮相互作用系数eNTi和活度系数fN的计算[J].真空,2018,55(3):45-47. NIU J P,SHAN Z Q,GENG S Q,et al.Calculation of interaction coefficient eNTi and activity coefficient fN of titanium to nitrogen in nickel-based superalloy[J].Vacuum,2018,55(3):45-47.
【25】WANG Y J, LIU W H, WANG D Q, et al. Simultaneously enhanced strength and ductility of TIG welds in Inconel 718 super-alloy via ultrasonic pulse current[J]. Materials Science & Engineering: A, 2021, 807:140894.
【26】牛建平.镍基高温合金的脱氮与脱硫[J].沈阳大学学报,2003,15(2):5-8. NIU J P.Denitrogenation and desulphurization during VIM refining Ni-base superalloy[J].Journal of Shenyang University,2003,15(2):5-8.
【27】YOUNG E C,MITCHELL A.Some aspects of nitrogen addition and removal during special melting and processing of iron and nickel base-alloys[J].High Temperature Materials and Processes,2001,20(2):79-102.
【28】LI Y, TAN Y, YOU X, et al. The denitrification behavior during electron beam smelting of FGH4096 alloy[J]. Vacuum, 2021, 189: 110212.
【29】裴忠冶.K465镍基高温合金的研究[D].沈阳:东北大学,2008. PEI Z Y.Study on K465 nickel-base superalloy[D].Shenyang:Northeastern University,2008.
【30】吴长春.冶金热力学[M].北京:机械工业出版社,1993. WU C C.Metallurgical thermodynamics[M].Beijing:China Machine Press,1993.
【31】张峰.熔体过热对FGH4096合金偏析和纯净化行为的影响研究[D]. 大连:大连理工大学,2021. ZHANG F. Research on the effect of superheat on segregation and purification of FGH4096 alloy[D]. Dalian: Dalian University of Technology, 2021.
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