孕育处理和保温时间对高镍铬组织和性能影响

doi:10.13228/j.boyuan.issn0449-749x.20230226

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Abstract High nickel-chromium centrifugal composite rolls have excellent strength and hardness as well as great resistance to thermal shock and thermal cracking,which is attribute to the good match of graphite and eutectic carbides in the structure of high nickel-chromium cast iron. However,the unsuitable inoculation would not effectively improve the structure and even form inclusions to deteriorate the material properties. Meanwhile,in the process of roll manufacturing,holding time of high-temperature iron liquid in the intermediate ladle is uncertain,due to the instability of iron smelting process and casting process. Eutectic carbide and graphite in the as-cast structure of high nickel-chromium cast iron was studied after holding for 3 h,5 h and 7 h,and followed by adding 0.4%,0.8% and 1.2% inoculant before pouring. The influence of holding time and inoculant treatment on hardness was also compared. The results show that with the increase of holding time,the average size and volume fraction of graphite increases,but the number density decreases,and the content of eutectic carbides decreases obviously. After inoculation treatment with holding time of 3 h,the nucleation of graphite could be effectively promoted,but the average size and number density of graphite did not improve significantly even if the amount of inoculant was increased after increasing holding time. When the holding time is less than 5 h,the content of eutectic carbide can be reduced by inoculation treatment,but the content of eutectic carbide can be increased by inoculation treatment after increasing the holding time. The hardness of high nickel-chromium cast iron decreases gradually with the increasement of holding time. When the holding time is more than 5 h,the hardness of incubated samples can increase 16HRC. In the smelting process of high nickel-chromium cast iron,the holding time should be controlled within 3 h,too long holding time will lead to excessive growth of graphite and reduce the amount of graphite. At this time,the amount of graphite can be increased by adding 0.4%-1.2% inoculant,but after holding for more than 5 h,even adding inoculant can not effectively improve the amount of graphite.

Key words： high nickel-chromium cast iron inoculation treatment holding time graphite eutectic carbide

Received: 06 May 2023

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	YANG Honglüe
	XIAO Zhixia
	FENG Jianhang
	CHEN Jiaqi
	CHEN Xingfu
	LIU Jiebing
	SHI Liyong

Cite this article:

YANG Honglüe,XIAO Zhixia,FENG Jianhang等. Effect of inoculation treatment and holding time on microstructure and mechanism of high nickel-chromium cast iron[J]. Iron and Steel, 2024, 59(1): 139-147.

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http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20230226 OR http://www.chinamet.cn/Jweb_gt/EN/Y2024/V59/I1/139

[1] MOLANARI A,PELLIZZARI M,BIGGI A. Development of spincast hot rolls through microstructure optimization[C]//44th MWSP conference Proceedings. Warrendale:Iron and Steel Society,2002:1233.
[2] 张建伟,袁乃博,黄德胜. 改进型高镍铬铸铁轧辊的生产[J]. 铸造,2012,61(4):404. (ZHANG J W,YUAN N B,HUANG D S. Production of improved high nickel-chromium roll[J]. Foundary,2012,61(4):404.)
[3] KOBAYASHI K. Technical view on forged steel rolls in Japan present and future of roll production technique[J]. Tetsu-to-Hagane, 1971,57(5): 725.
[4] 王明家,王艳. 改进型无限冷硬铸铁轧辊回火组织转变研究[J]. 材料热处理学报,2005(2):74.(WANG M J,WANG Y. Study on tempering structure transformation of improved infinite chilled cast iron roll[J]. Journal of Materials and Heat Treatment,2005(2):74.)
[5] ASENSIO-LOZANO J,ÁLVAREZ-ANTOLN J F. Saturated fractional design of experiments:Toughness and graphite phase optimizing in nihard cast irons[J]. Journal of Materials Engineering and Performance,2008,17(2):216.
[6] 文铁铮,郭玉珍. 冶金轧辊技术特性概论[M]. 石家庄:河北科学技术出版社,1995.(WEN T Z,GUO Y Z. Introduction to Technical Characteristics of Metallurgical Roll[M]. Shijiazhuang:Hebei Science and Technology Press,1995.)
[7] 孙智刚,高伟,肖福仁,等. 石墨及碳化物对高镍铬无限冷硬铸铁轧辊耐磨性的影响[J]. 材料热处理学报,2007(s1):94.(SUN Z G,GAO W,XIAO F R,et al. Effect of graphite and carbide on wear resistance of high Ni Cr infinite chilled cast iron roll[J]. Journal of Materials and Heat Treatment,2007(s1):94.)
[8] 尤显卿,刘圣明. 渗硼对钢结硬质合金GJW50热疲劳性能的影响[J]. 热加工工艺,1988(6):10.(YOU X Q,LIU S M. Effect of boriding on thermal fatigue property of steel-bonded cemented carbide GJW50[J]. Hot Working Technology,1988(6):10.)
[9] 林柏年,张业彭. 碳对灰铁抗热应力疲劳性能的影响[J]. 特种铸造及有色合金,1989(5):32.(LIN B N,ZHANG Y P. Effect of carbon on thermal stress fatigue resistance of gray iron[J]. Special Casting and Non-Ferrous Alloys,1989(5):32.)
[10] 高元举,李性原,梁挂云,等. 硅铁孕育剂的研究[J]. 现代铸铁,1986(3):15.(GAO Y J,LI X Y,LIANG G Y,et al. Study on inoculant of ferrosilicon[J]. Modern Cast Iron,1986(3):15.)
[11] 秦紫瑞,朱雪梅,徐久军. RE-B对低合金白口铸铁变质效果的研究[J]. 中国铸造装备与技术,1998(1):14.(QIN Z R,ZHU X M,XU J J. Study on the metamorphic effect of RE-B on low alloy white cast iron[J]. China Casting Equipment and Technology,1998(1):14.)
[12] 王兆昌,韩福生. B与Re-Si变质处理对高Cr-Mn白口铸铁的组织及性能的影响[J]. 铸造,1985,34(3):1.(WANG Z C,HAN F S. Effect of B and Re-Si modification on microstructure and properties of high Cr-Mn white cast iron[J]. Foundry,1985,34(3):1.)
[13] 王会群. 过热温度和保温时间对镍硬白口铸铁组织的影响[J]. 现代铸铁,2007(5):47.(WANG H Q. Effect of superheating temperature and holding time on microstructure of nickel hard white cast iron[J]. Modern Cast Iron,2007(5):47.)
[14] 武瑞石,张东浩,刘建宁,等. 熔炼温度和时间与生铁遗传性消除的关系[J]. 河北冶金,2022(1):22.(WU R S,ZHANG D H,LIU J N,et al. Relationship between melting temperature and time and genetic elimination of pig iron[J]. Journal of Hebei Metallurgical Industry,2022(1):22.)
[15] 石管华. 硅对烧结高铬铸铁组织与性能的影响研究[D]. 长沙:湖南大学,2020.(SHI G H. Effect of Silicon on Microstructure and Properties of Sintered High Chromium Cast Iron[D]. Changsha:Hunan University,2020.)
[16] 石管华,肖平安,顾景洪,等. 硅对烧结态高铬铸铁组织与性能的影响研究[J]. 航空制造技术,2019,62(22):52.(SHI G H,XIAO P A,GU J H,et al. Effect of Silicon on microstructure and properties of sintered high chromium cast iron[J]. Aviation Manufacturing Technology,2019,62(22):52.)
[17] 石安君. 变质处理方式对Cr15高铬铸铁组织和性能影响的研究[D]. 镇江:江苏大学,2016.(SHI A J. Study on the Effect of Metamorphic treatment on the Microstructure and Properties of Cr15 High Chromium cast iron[D]. Zhenjiang:Jiangsu University,2016.)
[18] 柳青. 高铬铸铁中碳化物的变质处理[D]. 济南:山东大学,2011.(LIU Q. Modification Treatment of Carbide in High Chromium Cast Iron[D]. Jinan:Shandong University,2011.)
[19] 刘玉高,马幼平. 孕育处理对高铬白口铸铁中碳化物形态的影响[J]. 热加工工艺,2009,38(9):52.(LIU Y G,MA Y P. Effect of inoculation treatment on carbide morphology in high chromium white cast iron[J]. Hot Working Technology,2009,38(9):52.)
[20] DENISA A,MIHAI C,STELIAN S,et al. Graphite degeneration in high Si,Mg-treated iron castings:Sulfur and oxygen addition effects[J]. International Journal of Metalcasting,2020,14(1):663.
[21] SAM K C,DONG G K,JIN W C. Effects of alloying elements and austenite destabilization heat treatment on graphitization of high chromium cast iron[J]. ISIJ International,1992,32(11):1163.
[22] 郑燕华,张坤,宋贤发. 孕育处理对厚大断面球铁组织和性能的影响[J]. 现代铸铁,2013,33(1):29.(ZHENG Y H,ZHANG K,SONG X F. Effect of inoculation treatment on microstructure and properties of ductile iron with thick and large Section[J]. Modern Cast Iron,2013,33(1):29.)
[23] 李利君,杨通,李燕. 铸态球铁用硅基复合孕育剂的研究[J]. 西安工业学院学报,1994(3):213.(LI L J,YANG T,LI Y. Study on silicon matrix composite inoculant for cast ductile iron[J]. Journal of Xi’an Institute of Technology,1994(3):213.)
[24] 宋绍峰,马幼平,李秀兰. Si/C对高铬铸铁初生奥氏体稳定性及碳化物的影响[J]. 兵器材料科学与工程,2010,33(6):30. (SONG S F,MA Y P,LI X L. Effect of Si/C on stability of primary austenite and carbide in high chromium cast iron[J]. Weapon Materials Science and Engineering,2010,33(6):30.)
[25] KUSAKAWA T. Behavior of oxygen and nucleation of graphite in production of spheroidal graphite cast iron[J]. Advanced Materials Research,1997,4:61.
[26] 张义顺,李锋,王青澄. 中铬抗磨白口铸铁变质剂的研究[J]. 中国有色金属学报,1998(s2):155.(ZHANG Y S,LI F,WANG Q C. Research of the chromium wear-resistant white cast iron inoculant[J]. Chinese Journal of Nonferrous Metals,1998(s2):155.)
[27] 孙文斌.中频感应电炉熔炼铸铁的质量控制与研究[D]. 南京:南京理工大学,2010.(SUN W B. Quality Control and Research of Medium Frequency Induction Furnace Melting Cast Iron[D]. Nanjing:Nanjing University of Science and Technology,2010.)
[28] ANDREY K,HIDEAKI S. Analysis of size distributions of primary oxide inclusions in Fe-10 mass Pct Ni-M(M=Si,Ti,Al,Zr,and Ce) alloy[J]. Metallurgical and Materials Transactions B,1999,30(2):259.
[29] 蔡著文,李玲,沈俞涛,等. 硅对Cr3型热作模具钢贝氏体相变的影响[J]. 机械工程材料,2020,44(s2):88.(CAI Z W,LI L,SHEN Y T,et al. Effect of silicon on bainitic transformation of Cr3 hot working die steel[J]. Materials for Mechanical Engineering,2020,44(s2):88.)
[30] AVERY H S. Work hardening in relation to abrasion resistance[C]//Symposium on Materials for the Mining Industry,Vail,Colo:Climax Molybdenum Co.,1974:43.