| 制备铁基高温合金多孔材料的新方法 |
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| 引用本文： | 李维杰,刘咏,王岩,韩朝,汤慧萍.制备铁基高温合金多孔材料的新方法[J].粉末冶金材料科学与工程,2012,17(3):370-376. |
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| 作者姓名： | 李维杰 刘咏 王岩 韩朝 汤慧萍 |
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| 作者单位： | 1. 中南大学粉末冶金国家重点实验室,长沙,410083
2. 西北有色金属研究院金属多孔材料国家重点实验室,西安,710016 |
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| 基金项目： | 国家高技术研究发展计划(S63计划)资助项目，粉末冶金国家重点实验室开放课题基金资助项目 |
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| 摘 要： | 向Fe-Cr-W-Ti-Y合金粉末中添加原子比为3∶1的Fe/Al混合粉末,利用Kirkendall效应和Fe、Al反应造孔制备铁基高温合金多孔材料.研究Fe/Al混合粉末的添加量对Fe-Cr-W-Ti-Y高温多孔材料开孔隙率及孔结构的影响.结果表明,加入Fe/Al混合粉末能显著提高烧结坯的开孔隙率,但并非所加Fe/Al混合粉末含量越多越好,Fe/Al混合粉末质量分数为15％时,烧结坯开孔隙率达到最大值33％.Fe/Al混合粉添加量在15％～45％范围内,随Fe/Al混合粉末含量增加烧结坯的开孔隙率下降.
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| 关 键 词： | 铁基高温合金多孔材料 Fe/Al混合粉末 Kirkendall效应 反应造孔 |
A new preparation method for porous iron-based superalloy materials |
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| LI Wei-jie
,
LIU Yong
,
WANG Yan
,
HAN Chao
,
TANG Hui-ping.A new preparation method for porous iron-based superalloy materials[J].materials science and engineering of powder metallurgy,2012,17(3):370-376. |
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| Authors: | LI Wei-jie LIU Yong WANG Yan HAN Chao TANG Hui-ping |
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| Affiliation: | 1.State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China; 2.Northwest Institute for Nonferrous Metal Research, State Key Laboratory of Porous Metals Materials,Xi’an 710016,China) |
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| Abstract: | The porous iron-based superalloy materials have been prepared through the Kirkendall effect and using Fe-Cr-W-Ti-Y alloy powder adding Fe/Al mixed powder(with atomic ratio of 3:1) as raw materials.The effect of Fe/Al mixed powder content on the open porosity of porous iron-based superalloy materials was investigated.The results show that the addition of Fe/Al mixed powder can significantly increase the open porosity of the sintered compact.However,there is not a strictly linear increment rule between the Fe/Al mixed powder content and the open porosity.As added 15%(mass fraction) Fe/Al mixed powder,the sintered compact has the maximum open porosity of 33%.With the Fe/Al mixed powder content in the range of 15%-45%,the open porosity of the sintered compact decreases with the Fe/Al mixed powder content increasing. |
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| Keywords: | porous iron-based superalloy materials Fe/Al mixed powder Kirkendall effect reaction to produce pore |
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