Fe-Mo-(Ni/Cu)-石墨粉末冶金复合材料的制备及组织性能研究

刘富; 江晓婧; 郑盼; 商剑

doi:10.19591/j.cnki.cn11-1974/tf.2018.01.007

Fe-Mo-(Ni/Cu)-石墨粉末冶金复合材料的制备及组织性能研究

doi: 10.19591/j.cnki.cn11-1974/tf.2018.01.007

辽宁工业大学材料科学与工程学院，锦州 121001

基金项目:

国家自然科学基金资助项目 51405215

详细信息

通讯作者:
商剑, E-mail: shangjian@lnut.edu.cn

中图分类号: TF125.13
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- 被引次数: 0
出版历程
- 收稿日期: 2017-07-01
- 刊出日期: 2018-02-27

Research on microstructure and properties of Fe-Mo-(Ni/Cu)-graphite composite prepared by powder metallurgy technology

School of Materials Science and Engineering, Liaoning University of Technology, Jinzhou 121001, China

More Information

Corresponding author: SHANG Jian, E-mail: shangjian@lnut.edu.cn

摘要

摘要: 采用粉末冶金方法制备了Fe-Mo-Ni-石墨（Fe-Mo-Cu-graphite，FMNG）和Fe-Mo-Cu-石墨（Fe-Mo-Cu-graphite，FMCG）材料，对比研究了Ni及Cu组元对Fe-Mo-石墨材料组织、物相、硬度及抗压强度等的影响。结果表明：烧结态FMNG、FMCG材料组织主要由珠光体、铁素体、贝氏体、石墨及夹杂分布的强化相Mo₂C、Fe₃Mo₃C组成；热处理提高了FMCG/FMNG材料的硬度及抗压强度；FMCG材料的抗压强度高于FMNG材料；FMCG材料的硬度低于FMNG材料。
- 铁基粉末冶金材料 /
- 显微组织 /
- 硬度 /
- 强度
Abstract: Fe-Mo-Ni-graphite (FMNG) and Fe-Mo-Cu-graphite (FMCG) composites were fabricated by powder metallurgy technology. The effects of Ni and Cu elements on microstructure, composition, hardness, and compressive strength of the prepared composite were investigated. Experimental results show that, the composites are mainly composed of pearlite, ferrites, bainite, Mo₂C and Fe₃Mo₃C strengthening phases, and clustered graphite. The hardness and compressive strength are improved by heat treatment. The hardness of FMCG is lower than that of FMNG. The compressive strength of FMCG is higher than that of FMCG. It is suggested that, the addition of Ni and Cu and the heat treatment can affect the microstructure and properties of the materials.
- Fe-matrix powder metallurgy materials /
- microstructure /
- hardness /
- strength

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图 1 FMNG粉末冶金材料烧结（a）及热处理（b）显微组织

Figure 1. Microstructures of sintered (a) and heat-treated (b) FMNG materials

下载: 全尺寸图片幻灯片

图 2 FMNG粉末冶金材料烧结态元素成分面分布：（a）表面形貌；（b）Fe；（c）Mo；（d）Ni；（e）C

Figure 2. Element distributions of the sintered FMNG powder metallurgy material: (a) surface morphology; (b) Fe; (c) Mo; (d) Ni; (e) C

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图 3 FMCG粉末冶金材料烧结（a）及热处理（b）显微组织

Figure 3. Microstructures of sintered (a) and heat-treated (b) FMCG materials

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图 4 FMCG粉末冶金材料烧结态元素成分面分布：（a）表面形貌；（b）Fe；（c）Mo；（d）Cu；（e）C

Figure 4. Element distributions of the sintered FMCG powder metallurgy materials: (a) surface morphology; (b) Fe; (c) Mo; (d) Cu; (e) C

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图 5 烧结（a）和热处理（b）FMNG材料X-射线衍射图谱

Figure 5. X-ray diffraction patterns of sintered (a) and heat-treated (b) FMNG materials

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图 6 烧结（a）和热处理（b）FMCG材料X-射线衍射图谱

Figure 6. X-ray diffraction patterns of sintered (a) and heat-treated (b) FMCG materials

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图 7 FMCG和FMCG材料显微硬度

Figure 7. Microhardness of FMCG and FMCG materials

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图 8 FMNG（a）和FMCG（b）粉末冶金材料烧结态压缩应力-应变曲线

Figure 8. Compressive curve of sintered FMNG (a) and FMCG (b) materials

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图 9 FMNG（a）和FMCG（b）粉末冶金材料热处理态压缩应力应变曲线

Figure 9. Compressive curve of heat-treated FMNG (a) and FMCG (b) materials

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表 1 烧结材料的化学成分（质量分数）

Table 1. Composition of sintering materials %

名称 Fe Mo Ni Cu 石墨

FMNG 余量 10 5 0 5

FMCG 余量 10 0 5 5

下载: 导出CSV

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