| Effect of RE－Al－N on Structures and Properties of M2 Cast High Speed Steel |
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| 引用本文： | 符寒光,杜建铭,蒋志强,邢建东.Effect of RE－Al－N on Structures and Properties of M2 Cast High Speed Steel[J].中国稀土学报(英文版),2003,21(6):664-668. |
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| 作者姓名： | 符寒光 杜建铭 蒋志强 邢建东 |
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| 作者单位： | School of Materials Science & Engineering，Xi′an Jiaotong University，School of Mechanical Engineering，Xi′an Jiaotong University，School of Mechanical Engineering，Xi′an Jiaotong University，School of Materials Science & Engineering，Xi′an Jiaotong University Xi′an 710049，China，Xi′an 710049，China，Xi′an 710049，China，Xi′an 710049，China |
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| 基金项目： | ProjectsupportedbyShanghaiBaoshanIron&SteelLtd .Co .ofChina |
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| 摘 要： | M 2highspeedsteel (M 2steel)isamaterialwidelyusedintoolsanddies1,2 ] .M 2steelischarac terizedbyalongsolidificationrangeandcomplexeu tecticreactions ,whichresultsinsegregationofalloy ingelementsandformationofseveraldifferenttypesofcarbidesduringsolidification3,4 ] .Forconventionallyprocessedhigh speedsteels ,itisinevitablethatacoarsecarbidenetworkwillbeformedduringsolidifi cation .Coarseprimarycarbidestendtoresultinun evencarbidebandsdistributionafterasubstantialamountofhotprocessing5] .Ma…
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| 关 键 词： | M2钢 高速钢 RE-Al-N 稀土 结构 性能 |
Effect of RE-Al-N on Structures and Properties of M2 Cast High Speed Steel |
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| Fu Hanguang.Effect of RE-Al-N on Structures and Properties of M2 Cast High Speed Steel[J].Journal of Rare Earths,2003,21(6):664-668. |
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| Authors: | Fu Hanguang |
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| Affiliation: | Fu Hanguang ~ |
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| Abstract: | M2 cast high speed steel was inoculated by addition of rare earth(RE)-Al-N, network eutectic carbides were eliminated, matrix microstructures were refined and the segregation of tungsten and molybdenum elements was relieved. In the condition that the hardness does not decrease, impact toughness obviously increases. Quenching at 1180 ℃ and three-times tempering at 560 ℃, the hardness of M2 cast high speed steel is 65～66 HRC, and impact toughness reaches 21.3 J*cm- 2. Modified M2 cast high speed steel has excellent thermal fatigue resistance and high temperature wear resistance. Roller made in modified M2 cast high speed steel has excellent service effect when it is used in slit rolling mill of hot rolling bar mill. |
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| Keywords: | metal materials high speed steel RE-Al-N modification thermal fatigue wear resistance rare earths |
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