Effect of rare earth Ce on microstructure and properties of super wear-resistant steel with in-situ TiC particles
WANG Xiao-lei1, DENG Xiang-tao1, FU Tian-liang1, WANG Qi1, CAO Yi2, WANG Zhao-dong1
1. The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China; 2. Liaoning Key Laboratory of Optimization and Utilization of Non-associated Low-grade Iron Ore in Benxi, Liaoning Institute of Science and Technology, Benxi 117004, Liaoning, China
Abstract：As a new research field in wear-resistant steel,the addition of high volume percent of TiC particles could improve the wear resistance of super wear-resistant steel,but it would reduce the toughness and plasticity of the material. In order to improve the comprehensive mechanical properties of super wear-resistant steel,the effect of rare earth Ce on the microstructure and properties of super wear-resistant steel was investigated. A vacuum induction melting furnace was used to produce the experimental steels with different mass percent of Ce. Using scanning electron microscopy (SEM),electron back scattered diffraction (EBSD),emission electron probe microscopic analyzer (EPMA),hardness testing,low-temperature impact testing and wear resistance testing to study the influence of rare earth Ce on the precipitation behavior of TiC particles,microstructure,mechanical properties and wear resistance of experimental steels. The results indicated that the microstructure of the experimental steel was tempered martensite after heat treatment,some TiC and TiN particles in experimental steel were modified into micron sized Ce2O2S-TiC,Ce2O2S-TiN,CeP-TiC and xCeP·yCe2O3-TiC composite inclusions after adding Ce. With the increasing of the mass percent of Ce,the low-temperature impact toughness and wear resistance first increase and then decrease,but the strength and hardness have little change. When the mass percent of Ce was 0.002 5%,the optimum comprehensive properties can be obtained,and the relative wear resistance was 1.27 times of the experimental steel without Ce addition.
王晓磊, 邓想涛, 付天亮, 王麒, 曹艺, 王昭东. 稀土铈对内生TiC型超级耐磨钢组织性能的影响[J]. 钢铁, 2021, 56(7): 115-122.
WANG Xiao-lei, DENG Xiang-tao, FU Tian-liang, WANG Qi, CAO Yi, WANG Zhao-dong. Effect of rare earth Ce on microstructure and properties of super wear-resistant steel with in-situ TiC particles[J]. Iron and Steel, 2021, 56(7): 115-122.
[1] Zdravecká E. Effect of microstructure factors on abrasion resistance of high-strength steels[J]. Research in Agricultural Engineering,2014,60(3):115. [2] HUANG L,DENG X T,WANG Q,et al. Microstructure,mechanical properties and wear resistance of low alloy abrasion resistant martensitic steel reinforced with TiC particles[J]. ISIJ International,2020,60(11):2586. [3] DENG X T,HUANG L,WANG Q,et al. Three-body abrasion wear resistance of TiC-reinforced low-alloy abrasion-resistant martensitic steel under dry and wet sand conditions[J]. Wear,2020,452/453:203310. [4] HUANG L,DENG X T,YE J,et al. Effects of using (Ti,Mo)C particles to reduce the three-body abrasive wear of a low alloy steel[J]. Wear,2018,410/411:119. [5] HUANG L,DENG X,WANG Q,et al. Solidification and sliding wear behavior of low-alloy abrasion-resistant steel reinforced with TiC particles[J]. Wear,2020,458/459:203444. [6] 邓想涛,王昭东,黄龙,等. 连铸坯内生超硬TiC超级耐磨钢的研究与应用[J]. 轧钢,2019,36(6):6.(DENG Xiang-tao,WANG Zhao-dong,HUANG Long,et al. Development and industrial application of new super low alloy abrasion resistant steel dependenting on continuous casting formed TiC particles[J]. Steel Rolling,2019,36(6):6.) [7] LIU Xiang-jun,YANG Ji-chun,ZHANG Fang,et al. Experimental and DFT study on cerium inclusions in clean steels[J]. Journal of Rare Earths,2020,39(4):477. [8] GAO J Z,FU P X,LIU H W,et al. Effect of rare earth on the microstructure and impact toughness of H13 steel[J]. Metals,2015,5(1):383. [9] LIU Hang-hang,FU Pai-xian,LIU Hong-wei,et al. Effects of Rare Earth elements on microstructure evolution and mechanical properties of 718H pre-hardened mold steel[J]. Journal of Materials Science and Technology,2020,50(15):245. [10] 杨吉春,栗宏伟,周莉,等. 微量稀土铈在超洁净IF钢中的作用[J]. 钢铁,2015,50(11):81. (YANG Ji-chun,LI Hong-wei,ZHOU Li,et al. Mechanism of trace cerium in ultra-clean IF steel[J]. Iron and Steel,2015,50(11):81.) [11] 蒋月月,王昭东,邓想涛. 铈对低合金超高强钢马氏体相变行为的影响[J]. 钢铁,2020,55(6):84. (JIANG Yue-yue,WANG Zhao-dong,DENG Xiang-tao. Effect of trace rare earth Ce on martensitic transformation behavior of ultra-high strength low alloy steel[J]. Iron and Steel,2020,55(6):84.) [12] 杨吉春,王军,任磊,等. 铈对S32550双相不锈钢微观组织及冲击性能的影响[J]. 钢铁,2020,55(1):86. (YANG Ji-chun,WANG Jun,REN Lei,et al. Effect of Ce on microstructure and impact propertiesof S32550 duplex stainless steel[J]. Iron and Steel,2020,55(1):86.) [13] 习小军,杨树峰,李京社,等. 含铈304不锈钢夹杂物改性及耐腐蚀性能优化[J]. 钢铁,2020,55(1):20. (XI Xiao-jun,YANG Shu-feng,LI Jing-she,et al. Inclusion modification and corrosion resistance optimization of 304 stainless steel containing cerium[J]. Iron and Steel,2020,55(1):20.) [14] 董方,闫瑞军,杨宗佳,等. 稀土铈对22MnCrNiMo钢耐腐蚀性能的影响[J]. 中国冶金,2019,29(1):30. (DONG Fang,YAN Rui-jun,YANG Zong-jia,et al. Effect of rare earth Ce on corrosion resistance properties of steel 22MnCrNiMo[J]. China Metallurgy,2019,29(1):30.) [15] 王奕,李长荣,曾泽芸,等. SWRS82B钢中稀土元素对氧化铝改性的晶体学[J]. 钢铁,2020,55(10):69. (WANG Yi,LI Chang-rong,ZENG Ze-yun,et al. Crystallization of alumina modified by rare earth elements in SWRS82B steel[J]. Iron and Steel,2020,55(10):69.) [16] 朱健,黄海友,谢建新. 近年稀土钢研究进展与加速研发新思路[J]. 钢铁研究学报,2017,29(7):513. (ZHU Jian,HUANG Hai-you,XIE Jian-xin. Recent progress and new ideas for accelerating research in rare earth steel[J]. Journal of Iron and Steel Research,2017,29(7):513.) [17] HUANG L,DENG X T,LI C R,et al. Effect of TiC particles on three-body abrasive wear behaviour of low alloy abrasion-resistant steel[J]. Wear,2019,434/435:202971. [18] Fruehan R J. The effect of zirconium,cerium,and lanthanum on the solubility of oxygen in liquid iron[J]. Metallurgical Transactions,1974,5(2):345. [19] 李言栋,刘承军,姜茂发. 不同洁净度条件下253MA钢中夹杂物的析出行为[J]. 东北大学学报(自然科学版),2014,35(11):1552,1560. (LI Yan-dong,LIU Cheng-jun,JIANG Mao-fa. Precipitation behavior of inclusions in 253MA steel with different cleanliness[J]. Journal of Northeastern University(Nature Science),2014,35(11):1552.) [20] Yoon-Uk Heo,Soo-Yeon Lee,Jung-Wook Cho,et al. Effects of Ce and P addition on as-cast structure and formation mechanism of cerium compounds in Ce-added TWIP steels[J]. Materials Characterization,2016,120:234. [21] 王东. 钛微合金化钢中钛与非金属元素相互作用基础研究[D]. 昆明:昆明理工大学,2013. (WANG Dong. Fundamental Research on the Interaction between Titanium and Non-metallic Elements in Titanium Microalloyed Steel[D]. Kunming:Kunming University of Science and Technology,2013.) [22] Echeverr A,Rodriguez J M. The role of grain size in brittle particle induced fracture of steels[J]. Materials Science and Engineering A,2003,346(1/2):149.
2021, Vol. 56 
