Effect of rare earth elements on the thermal cracking resistance of high speed steel rolls

稀土学报(英文版), 2011, 29(5): 489-493. doi: 10.1016/S1002-0721(10)60485-1

^1, , ^2, , ^3, , ^4,

1.Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

2.Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

3.Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

4.College of Electromechanical and Information Engineering, Dalian Nationalities University, Dalian 116600, China

基金项目: the National Natural Science Foundation of China(51071136)

Effect of rare earth elements on the thermal cracking resistance of high speed steel rolls

WANG Mingjia ^1, , LI Yanmei ^2, , WANG Zixi ^3, , BAO Er ^4,

1.Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

2.Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

3.Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

4.College of Electromechanical and Information Engineering, Dalian Nationalities University, Dalian 116600, China

Keywords： high speed steel roll

The effect of rare earth elements on the thermal crocking resistance of high speed steel (HSS) rolls was investigated. Laser rapid heating was used for thermal fatigue experiments. Thermal crocks and microstructure were observed using metalloscopy and scanning electron microscopy. The results showed that thermal crocks initiated from the interface between the matrix and eutectic carbides (including M6C and M7C3 type carbides), and propagated along the interface between the two phases. MC type carbides enriched with vanadium could prevent the propagation of therrnal crocks. The presence of rare earth elements decreased the quantity of big eutectic carbides, and proportionally increased spherical and rod-shaped MC type carbide content. HSSO (0.00% RE) had approximately three times the thermal cracking density of HSS3 (0.12 wt.% RE). Rare earth elements were shown to significantly improve the microstructure and thermal cracking resistance of HSS rolls.

参考文献

[1]	Lin Shancan;Fu Hanguang .Progress in research on the high speed steel roll[J].Wide and Heavy Plate,2003,9(01):3.
[2]	Hwang K C;Lee S;Lee H C .Effects of elements on microstructure and fracture properties of cast high speed steel rolls Part Ⅰ:Microstructural analysis[J].Materials Science and Engineering,1998,254A(1-2):282.
[3]	Xu Liujie;Xing Jiandong;Wei Shizhong .Investigation on wear behaviors of high-vanadium high-speed steel compared with high-chromium cast iron under rolling contact condition[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1/2):63-70.
[4]	Keun C H;Sunghak L;Hui C L .Effects of alloying elements on microstructure and fracture properties of cast high speed steel rolls[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1998,254(01):282.
[5]	Wei Shizhong;Zhu Jinhua;Xu Liujie .Effects of vanadium and carbon on microstructures and abrasive wear resistance of high speed steel[J].Tribology International,2006,39:641.
[6]	Mercado-Solis R D;Talamantes-Silva J;Beynon J H;Hernandez-Rodriguez M A L .Modelling surface thermal damage to hot mill rolls[J].WEAR,2007,263:1560.
[7]	ZHOU Li,SUN Da-le,LIU Chang-sheng,WU Qiong.Fatigue Behavior of High Speed Steel Roll Materials for Hot Rolling by Laser Impacting[J].钢铁研究学报（英文版）,2006(06):49-52.
[8]	Dai W S;Ma M;Chen J H .The thermal fatigue behavior and cracking characteristics of hot-rolling material[J].Materials Science and Engineering,2007,A448:25.
[9]	Long S G;Zhou Y C .Thermal fatigue of particle reinforced metal-matrix composite induced by laser heating and mechanical load[J].Computer Science and Technology,2005,65:1391.
[10]	Wang Mingjia;Mu Songmei;Sun Feifei .Influence of Rare Earth Elements on Microstructure and Mechanical Properties of Cast High-Speed Steel Rolls[J].Journal of Rare Earths,2007(4):490-494.
[11]	Mercado-Solis R D;Talamantes-Silva J;Beynon J H;Hernandez-Rodriguez M A L .Modelling surface thermal damage to hot mill rolls[J].WEAR,2007,263:1560.
[12]	Wang Mingjia;Wang Yan;Sun Feifei;Chen Lei .Effect of rare earths on cyclic oxidation of cast high-speed steel used for roll[J].Journal of Rare Earths,2005,23(03):478.
[13]	Fu Hanguang;Xiao Qiang;Li Yanxiang .A study of the microstructures and properties of Fe-V-W-Mo alloy modified by rare earth[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2005,395:28.
[14]	YANG Qing-xiang;LI Hui;GUO Tie-bo .Effect of Rare Earth Elements on Quenching Crack Resistance of Steel 9Cr2Mo[J].Journal of Rare Earths,2001(1):77-80.
[15]	YANG Jun,ZOU De-ning,LI Xiao-ming,DU Zhong-ze.Effect of Rare Earth on Microstructures and Properties of High Speed Steel With High Carbon Content[J].钢铁研究学报（英文版）,2007(01):47-52,59.

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Effect of rare earth elements on the thermal cracking resistance of high speed steel rolls

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