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Nb-RE微合金化对复杂刀具用TGM2高速钢组织和性能的影响 被引量：1

Effect of Nb-RE Microalloying on Structure and Properties of High Speed Steel TGM2 for Complicated Tool
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摘要 Nb-RE微合金化TGM2高速钢(%:0.88～0.89C、4.14～4.16Cr、4.73～4.76Mo、6.09～6.12W、1.85～1.86V、0.05～0.10Nb、0.05～0.06RE)由25 t EAF-30 t LF(VD,加Nb-RE)-1 t ESR工艺冶炼。试验结果表明,经Nb-RE微合金化后,TGM2高速钢Φ96 mm材淬火晶粒尺寸明显细化,晶粒度由原来未微合金化钢的9.5级提高至10～10.5级;淬、回火后硬度HRC为65.2～65.8,600℃4 h红硬性HRC为62.1～62.3,Nb-RE TGM2钢制成刀具的切削寿命较原TGM2钢提高20%。 Nb-RE microalloying high speed steel TGM2 （ % ： 0. 88 - 0. 89C, 4. 14 - 4. 16Cr, 4. 73 - 4. 76Mo, 6.09-6. 12W, 1.85- 1.86V, 0.05 -0. 10Nb, 0.05 -0.06RE） was melted by 25 t EAF-30 t LF （VD, adding Nb- RE）- 1 t ESR process. Test results show that with Nb-RE microalloying, the grain size of quenched Ф96 mm bar of high speed steel TGM2 is obviously fine i. e. the grain rating increases to 10 - 10. 5 from 9.5 of original steel without microalloying; the hardness HRC of quenched and tempered Nb-RE steel is 65.2 - 65.8 and its red hardness HRC at 600 ℃ for 4 h is 62. 1 - 62. 3 ; as compared with original TGM2 steel without added Nb-RE, the service life of tool manufactured by Nb- RE TGM2 steel increases by 20%.
作者 雷利军 朱小坤 李德辉 周英孝 徐文瑛
机构地区 天工国际有限公司
出处 《特殊钢》 北大核心 2009年第6期45-46,共2页 Special Steel
关键词 Nb—RE微合金化 TGM2高速钢 复杂刀具 使用寿命 Nb-RE Microalloying, High Speed Steel TGM2, Complicated Tool, Service Life
分类号 TG142.45 [金属学及工艺—金属材料]
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共引文献87

同被引文献23

  • 1郑宏光,沈继程,吴狄峰,孙丹,陈伟庆.Ti和Nb对超低碳氮Cr18不锈钢回复再结晶的影响[J].宝钢技术,2010,3(2):21-24. 被引量：3
  • 2刘刚,姚润钢,孔红雨,周浩.Nb、Ti微合金元素对连铸10MnNiCr钢埋弧焊接头组织与韧性的影响[J].材料开发与应用,2005,20(1):9-12. 被引量：2
  • 3邵正伟.铌钛复合微合金化载重汽车轮辐钢板的研制[J].山东冶金,2004,26(6):40-42. 被引量：1
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特殊钢
2009年 第6期

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