烧结压力对FeCu30合金组织和性能的影响

彭银利; 贾振豫; 李梅; 解芳; 朱新娟

doi:10.3969/j.issn.1674-6457.2026.03.010

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精密成形工程 ›› 2026, Vol. 18 ›› Issue (3) : 91-97. DOI: 10.3969/j.issn.1674-6457.2026.03.010

钢铁成形

烧结压力对FeCu30合金组织和性能的影响

彭银利^1,2,3,*, 贾振豫^1,2, 李梅¹, 解芳¹, 朱新娟^3,*

作者信息 +

Effect of Sintering Pressure on the Microstructure and Properties of FeCu30 Alloy

PENG Yinli^1,2,3,*, JIA Zhenyu^1,2, LI Mei¹, XIE Fang¹, ZHU Xinjuan^3,*

Author information +

文章历史 +

摘要

目的为了获得高性能Fe-Cu合金胎体,探究了热压烧结过程中机械压力对预合金粉烧结块体组织的影响及性能的变化规律。方法以FeCu30预合金粉为原料,采用真空热压烧结技术,在不同烧结压力（18、25、32 MPa）下制备了FeCu30合金块体,运用X射线衍射仪（XRD）、共聚焦显微镜、扫描电子显微镜、拉伸机和摩擦磨损试验机等多种表征设备,对合金的微观组织形貌、物相组成、抗压强度和磨损性能进行了分析。结果在18、25、32 MPa烧结压力下,合金块体组织整体均一,由富Cu相和富Fe基体相组成。其中,三者内部的孔隙数量随烧结压力的升高而增多,但尺寸分布范围变窄,孔隙平均尺寸分别为2.25、1.82、1.37 μm,致密度分别为97.5%、99.3%和99.7%,维氏硬度分别为210.7HV0.5、229.4HV0.5和237.0HV0.5,抗压强度分别为706.0、671.4、607.7 MPa,屈服极限分别为473.6、469.2、492.0 MPa,平均摩擦因数分别为0.79、0.74、0.73。结论随着烧结压力（18、25、32 MPa）的升高,材料的致密度和硬度不断增加,抗压强度不断减小,屈服极限先降低后升高,但耐磨性能逐渐增强。

Abstract

The work aims to investigate the effect of mechanical pressure on the microstructure and property evolution of pre-alloyed powder sintered blocks during the hot-pressing process to optimize the performance of Fe-based alloy matrix. By vacuum hot pressing, FeCu30 alloy block was prepared with FeCu30 pre-alloyed powder under three different sintering pressures (18, 25, and 32 MPa). The microstructure, phase composition, compressive strength, and wear resistance of the FeCu30 alloys were analyzed through X-ray diffractometer (XRD), confocal microscope, scanning electron microscope, tensile machine, and tribological testing machine, respectively. The FeCu30 alloys exhibited a homogeneous structure consisting of Cu-rich and Fe-rich matrix phases under all sintering pressures. As the sintering pressure increased, the number of pores increased, but the size distribution range became narrower. The average pore sizes were 2.57 μm to 1.82 μm and 1.37 μm, respectively. The relative densities increased significantly, reaching 97.5%, 99.3%, and 99.7% , the Vickers hardness values were 210.7HV0.5, 229.4HV0.5 and 237.0HV0.5, respectively, the compressive strength values were 706.0 MPa, 671.4 MPa and 607.7 MPa, respectively, the yield limits were 473.6 MPa, 469.2 MPa and 492.0 MPa respectively and the average friction coefficients were 0.79, 0.74 and 0.73, respectively. With the increase of sintering pressure (18, 25, 32 MPa), the density and hardness of the material continuously increase, while the compressive strength gradually decreases. The yield limit first decreases and then increases, yet the wear resistance progressively improves.

导出引用

彭银利, 贾振豫, 李梅, 解芳, 朱新娟. 烧结压力对FeCu30合金组织和性能的影响[J]. 精密成形工程. 2026, 18(3): 91-97 https://doi.org/10.3969/j.issn.1674-6457.2026.03.010

PENG Yinli, JIA Zhenyu, LI Mei, XIE Fang, ZHU Xinjuan. Effect of Sintering Pressure on the Microstructure and Properties of FeCu30 Alloy[J]. Journal of Netshape Forming Engineering. 2026, 18(3): 91-97 https://doi.org/10.3969/j.issn.1674-6457.2026.03.010

中图分类号： TF125

参考文献

[1] 王檬, 王阳刚, 杨倩如, 等. 铜铁合金的制备与应用[J]. 中国有色金属学报, 2023, 33(8): 2521-2535.
WANG M, WANG Y G, YANG Q R, et al.Preparation and Application of Cu-Fe Alloys[J]. The Chinese Journal of Nonferrous Metals, 2023, 33(8): 2521-2535.
[2] 张小红. 铜铁合金——新材料技术革命[J]. 中国有色金属, 2021(15): 27-31.
ZHANG X H.Copper-Iron Alloy-New Material Technology Revolution[J]. China Nonferrous Metals, 2021 (15): 27-31.
[3] SHI G D, CHEN X H, JIANG H, et al.Strengthening Mechanisms of Fe Nanoparticles for Single Crystal Cu-Fe Alloy[J]. Materials Science and Engineering: A, 2015, 636: 43-47.
[4] LIU S C, JIE J C, GUO Z K, et al.A Comprehensive Investigation on Microstructure and Magnetic Properties of Immiscible Cu-Fe Alloys with Variation of Fe Content[J]. Materials Chemistry and Physics, 2019, 238: 121909.
[5] ALAMI A H, ABU H A.Synthesis, Characterization and Applications of FeCu Alloys[J]. Applied Surface Science Advances, 2020, 1: 100027.
[6] NOGOVITSYN О, SEREDENKO V, SEREDENKO О, et al.Peculiarities of Initial Stage of Cu-Fe Alloy Components Interaction during Melting in Induction Crucible Furnace[J]. Metallofizika I Noveishie Tekhnologii, 2022, 44(11): 1551-1564.
[7] WANG X F, GAO X F, LAI Z B, et al.Molecular Dynamics Research on Fe Precipitation Behavior of Cu₉₅Fe₅ Alloys during Rapid Cooling[J]. Metals, 2024, 14(2): 228.
[8] DING Y J, XIAO Z, FANG M, et al.Microstructure and Mechanical Properties of Multi-Scale α-Fe Reinforced Cu-Fe Composite Produced by Vacuum Suction Casting[J]. Materials Science and Engineering: A, 2023, 864: 144603.
[9] 董彦非, 石磊, 刘力铭. 电磁搅拌对Cu-Fe合金铸锭凝固组织和性能的影响[J]. 特种铸造及有色合金, 2021, 41(10): 1234-1237.
DONG Y F, SHI L, LIU L M.Effects of Electromagnetic Stirring on the Solidification Microstructure and Properties of the Cu-Fe Alloy Ingot[J]. Special Casting & Nonferrous Alloys, 2021, 41(10): 1234-1237.
[10] MOON H J, YEO T M, LEE S H, et al.Effect of Zr Addition on Metastable Liquid-Liquid Phase Separation of Cu-Fe Alloys[J]. Scripta Materialia, 2021, 205: 114218.
[11] WU Y N, ZHANG W J, LI Y, et al.An Overview of Microstructure Regulation Treatment of Cu-Fe Alloys to Improve Strength, Conductivity, and Electromagnetic Shielding[J]. Journal of Alloys and Compounds, 2024, 1002: 175425.
[12] 战再吉, 李鑫, 曹海要. 新型Fe-Cu复合材料的设计及性能研究[J]. 稀有金属, 2020, 44(2): 153-158.
ZHAN Z J, LI X, CAO H Y.Design and Properties of New Fe-Cu Composites[J]. Chinese Journal of Rare Metals, 2020, 44(2): 153-158.
[13] 石磊, 赵齐, 罗成, 等. Cu含量和烧结温度对Fe-Cu基粉末冶金复合材料摩擦磨损性能的影响[J]. 材料研究学报, 2020, 34(2): 137-150.
SHI L, ZHAO Q, LUO C, et al.Effect of Copper Content and Sintering Temperature on Friction and Wear Properties of Powder-Metallurgical Fe-Cu Based Composites[J]. Chinese Journal of Materials Research, 2020, 34(2): 137-150.
[14] OLOYEDE O, BIGG T D, COCHRANE R F, et al.Microstructure Evolution and Mechanical Properties of Drop-Tube Processed, Rapidly Solidified Grey Cast Iron[J]. Materials Science and Engineering: A, 2016, 654: 143-150.
[15] HUANG S, NIU W Y, HUA F A, et al.Effect of Cryorolling on Microstructure Evolution and Mechanical Properties of Spray Deposited Cu-Fe Alloy[J]. Journal of Alloys and Compounds, 2024, 984: 173996.
[16] ZHANG C Z, CHEN C G, LI P, et al.Microstructure and Properties Evolution of Rolled Powder Metallurgy Cu-30Fe Alloy[J]. Journal of Alloys and Compounds, 2022, 909: 164761.
[17] PENG S Y, TIAN Y Z, YANG Y, et al.Achieving Homogeneous Fe Distribution and High Strength in Cu-Fe Composite Consolidated by Powder Rolling[J]. Materials Science and Engineering: A, 2023, 884: 145563.
[18] ZHU F, GAN X P, LIU C Q.Microstructure and Properties of Cu-50Fe Alloy Produced by Chemical Co-Precipitation and Powder Metallurgy[J]. Journal of Central South University, 2023, 30(5): 1405-1416.
[19] ADAM O, JAN V.Microstructure Evolution of Cu-Fe-Based Immiscible Alloys Prepared by Powder Metallurgy[J]. IOP Conference Series: Materials Science and Engineering, 2021, 1178(1): 012001.
[20] 贾国荣, 陆蕾屹, 闵金, 等. 热压烧结参数对Ti35421组织与力学性能的影响[J]. 粉末冶金技术, 2025, 43(2): 153-162.
JIA G R, LU L Y, MIN J, et al.Effect of Hot Press Sintering Parameters on Microstructure and Mechanical Properties of Ti35421[J]. Powder Metallurgy Technology, 2025, 43(2): 153-162.
[21] MECHRI H, HADDAD A, ZERGOUG M, et al.Microstructural Study of Thin Films CuFe Obtained by Thermal Evaporation of Nanostructured Milled Powder[J]. Journal of Nano Research, 2017, 47: 71-78.
[22] 钟斌, 王元龙, 于正洋, 等. TiB₂含量对TiB₂/石墨-铜复合材料微观组织和摩擦性能的影响[J]. 精密成形工程, 2025, 17(4): 183-191.
ZHONG B, WANG Y L, YU Z Y, et al.Effect of TiB₂ Content on Microstructure and Friction Properties of TiB₂/Graphite-Copper Composites[J]. Journal of Netshape Forming Engineering, 2025, 17(4): 183-191.
[23] KIM A, MAZEEVA A, RAZUMOV N, et al.Highentropy Soft Magnetic Alloy Fe_xCo₆Al₃Ni₂Si with High Hardness and Compressive Strength[J]. Journal of Magnetism and Magnetic Materials, 2025, 622: 172993.
[24] WEI Y N, MA M F, ZHANG S Y, et al.Investigation of the Microstructure and Properties of a ZRC-Reinforced TZM Molybdenum Alloy[J]. International Journal of Refractory Metals and Hard Materials, 2025, 131: 107188.
[25] 豆丽莎, 李姿琳, 王晓翠, 等. 纳米尺度下载荷和滑动速度对表面摩擦特性的影响[J]. 微纳电子技术, 2022, 59(10): 1017-1026.
DOU L S, LI Z L, WANG X C, et al.Effects of Load and Sliding Velocity on Surface Friction Properties at Nanoscale[J]. Micronanoelectronic Technology, 2022, 59(10): 1017-1026.
[26] 王伟, 孙壮, 程鹏, 等. SPS烧结压力对60NiTi合金显微组织及摩擦学性能的影响[J]. 稀有金属材料与工程, 2022, 51(10): 3793-3801.
WANG W, SUN Z, CHENG P, et al.Effects of SPS Sintering Pressure on Microstructure and Tribological Properties of 60NiTi Alloy[J]. Rare Metal Materials and Engineering, 2022, 51(10): 3793-3801.
[27] LIANG X M, XING Y Z, LI L T, et al.An Experimental Study on the Relation between Friction Force and Real Contact Area[J]. Scientific Reports, 2021, 11: 20366.