构型参数及方式对Al<sub>2</sub>O<sub>3</sub>p/高锰钢球形网络复合材料压缩性能的影响

寇宝弘; 卢德宏; 龚文豪; 张翼; 王宇

doi:10.13801/j.cnki.fhclxb.20211230.004

构型参数及方式对Al₂O₃p/高锰钢球形网络复合材料压缩性能的影响

doi: 10.13801/j.cnki.fhclxb.20211230.004

昆明理工大学　材料科学与工程学院，昆明 650093

基金项目: 国家自然科学基金 (51865024)

详细信息

通讯作者:
卢德宏，博士，教授，博士生导师，研究方向为金属基复合材料　E-mail: dhkust1@hotmail.com

中图分类号: TB333
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出版历程
- 收稿日期: 2021-11-16
- 修回日期: 2021-12-16
- 录用日期: 2021-12-20
- 网络出版日期: 2021-12-31
- 刊出日期: 2023-01-15

Influence of architecture parameter and mode on compressive properties of an Al₂O₃p/high manganese steel spherical interpenetrating composite

Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China

Funds: National Natural Science Foundation of China (51865024)

摘要

摘要: 传统的耐磨金属基复合材料普遍存在塑韧性低的问题。对氧化铝颗粒(Al₂O₃p)增强高锰钢复合材料进行球形网络构型设计，研究了构型方式、参数及热处理对复合材料压缩性能的影响。制备了3种构型参数(球径ϕ分别为6 mm、7 mm、8 mm)结合两种构型方式(平行、错落)的Al₂O₃p/高锰钢球形网络复合材料、均匀复合材料和基体材料。结果表明：同构型方式下，随着构型参数(复合区体积分数)的增加，材料的压缩性能降低，其中ϕ6材料的屈服强度、抗压强度和(抗压强度下)应变最佳，相比于均匀复合材料分别提升203.8%、236.1%和134.8%，屈服强度相比于基体材料提升107.5%；同构型参数下，错落排布比平行排布的屈服强度、抗压强度和应变分别提升10.9%、28.5%和16.3%；水韧处理后，错落排布材料的屈服强度降低35.2%，抗压强度提升11.0%，应变提升163.1%。裂纹易在基体区与复合区界面处萌生并进行扩展，基体能够阻碍裂纹的扩展；错落排布增大了复合区的最小间距，提升了塑性。
- 金属基复合材料 /
- 构型复合材料 /
- 构型参数 /
- 构型方式 /
- 氧化铝颗粒
Abstract: Conventional wear-resistant metal matrix composites generally suffer from low plastic toughness. The spherical interpenetrating architecture design of Al₂O₃ ceramic particle (Al₂O₃p) reinforcement high manganese steel composites was carried out, and the effects of the architectured parameters, modes and heat treatment on the compressive properties of the composites were investigated. Al₂O₃p/high manganese steel spherical interpenetrating composites with three architectured parameters (ball diameter φ of 6 mm, 7 mm, 8 mm) combined with two architectured modes (parallel and staggered), uniformly dispersed composite, and matrix materials were prepared. The results show that the compressive properties of the materials decrease with the increase of the architectured parameters (volume fraction of the composite zone) under the same architectured mode, with the best yield strength, compressive strength, and (under compressive strength) strain for φ6 materials, increasing by 203.8%, 236.1%, and 134.8%, respectively compared with the uniform dispersed composites. The yield strength increases by 107.5% compared with the matrix materials. Under the same architectured parameter, the yield strength, compressive strength and strain of staggered-arrany are increased by 10.9%, 28.5%, and 16.3%, respectively, compared with the parallel-arrany. The yield strength is reduced by 35.2%, the compressive strength is increased by 11.0% and the strain is increased by 163.1% for staggered-arrany composites after water toughness treatment. Cracks tend to sprout and expand at the interface between the matrix and composite zones, but the matrix can hinder the crack expansion. Staggered-arrany increases the minimum spacing of the composites zones and enhances plasticity.
- metal matrix composites /
- architectured composites /
- architecture parameter /
- architecture method /
- Al₂O₃p

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图 1 球形网络复合材料示意图

Figure 1. Schematic diagram of spherical interpenetrating composites

D—Groove diameter; φ—Diameter of preform

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图 2 Al₂O₃p/高锰钢球形网络复合材料微观结构：(a) 基体区热处理前；(b) 基体区热处理后；(c) 复合区热处理前；(d)复合区热处理后

Figure 2. Microstructure of Al₂O₃p/HMS spherical interpenetrating composites: (a) Matrix zone before heat treatment; (b) Matrix zone after heat treatment; (c) Composite zone before heat treatment; (d) Composite zone after heat treatment

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图 3 Al₂O₃p/高锰钢球形网络复合材料界面成分EDS分析

Figure 3. EDS analysis of interfacial components of Al₂O₃p/HMS spherical interpenetrating composite

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图 4 Al₂O₃p/高锰钢球形网络复合材料XRD物相分析

Figure 4. XRD physical phase analysis of Al₂O₃p/high manganese steel spherical interpenetrating composite

bcc—Body-centered cubic

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图 5 Al₂O₃p/高锰钢球形网络复合材料、均匀复合材料和基体材料的压缩应力-应变曲线

Figure 5. Compressive stress-strain curves of Al₂O₃p/HMS spherical interpenetrating composites, uniformly dispersed compositeand matrix material

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图 6 Al₂O₃p/高锰钢球型网络复合材料构型方式的结构示意图：(a) 观察方向；(b)平行排布；(c)错落排布

Figure 6. Schematic diagram of architectured methods of Al₂O₃p/HMS spherical interpenetrating composites: (a) Observation direction; (b) Parallel; (c) Staggered

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图 7 相同构型参数下平行排布与错落排布Al₂O₃p/高锰钢球形网络复合材料的应力-应变曲线

Figure 7. Compressive stress-strain curves of parallel-arrany and staggered-arrany Al₂O₃p/HMS spherical interpenetrating composites with the same architectured parameter

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图 8 Al₂O₃p/高锰钢球形网络复合材料、均匀复合材料和基体材料热处理前后的应力-应变曲线

Figure 8. Compressive stress-strain curves of Al₂O₃p/HMS spherical interpenetrating composites, uniformly dispersed composite and matrix materials before and after heat treatment

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图 9 Al₂O₃p/高锰钢球形网络复合材料表面裂纹：(a) Al₂O₃p(φ6-P)/HMS；(b) Al₂O₃p(φ7-P)/HMS；(c) Al₂O₃p(φ8-P)/HMS；(d) Al₂O₃p(φ8-S)/HMS

Figure 9. Surface cracks of Al₂O₃p/HMS spherical interpenetrating composites: (a) Al₂O₃p(φ6-P)/HMS; (b) Al₂O₃p(φ7-P)/HMS; (c) Al₂O₃p(φ8-P)/HMS; (d) Al₂O₃p(φ8-S)/HMS

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图 10 Al₂O₃p/高锰钢球形网络复合材料压缩失效后的微观形貌：(a) 复合区；(b) 放大后的复合区；(c)基体区最小壁厚；(d)放大后的最小壁厚处

Figure 10. Microscopic morphology after compression failure of Al₂O₃p/HMS spherical interpenetrating composite: (a) Composite zone; (b) Enlarged composite zone; (c) Minimum wall thickness of matrix zone; (d) Enlarged minimum wall thickness

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图 11 Al₂O₃p/高锰钢球形网络复合材料的三维重构形貌：(a)宏观形貌；(b)复合区；(c)组合形貌

Figure 11. 3D reconstructed shape of Al₂O₃p/HMS spherical interpenetrating composite: (a) Macro; (b) Composite zone; (c) Overall shape

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图 12 Al₂O₃p/高锰钢球形网络复合材料内部裂纹扩展断层扫描 (CT) 图

Figure 12. Computed tomography (CT) photos of internal crack extension of Al₂O₃p/HMS spherical interpenetrating composite

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表 1 各试验材料信息

Table 1. Information of researched materials

Codename	Architecture method	Architecture parameter /mm	Composite zone fraction/vol%
HMS	—	—	0.0
Al₂O₃p/HMS	—	—	100.0
Al₂O₃p(φ6-P) /HMS	Parallel	6	15.6
Al₂O₃p(φ7-P) /HMS	Parallel	7	24.6
Al₂O₃p(φ8-P) /HMS	Parallel	8	36.8
Al₂O₃p(φ8-S) /HMS	Staggered	8	36.8
Al₂O₃p(φ8-S) /HMS(H)	Staggered	8	36.8
Al₂O₃p/HMS(H)	—	—	100.0
HMS(H)	—	—	0.0
Notes：Al₂O₃p—Al₂O₃ ceramic particle; HMS—High manganese steel; φ—Ball diameter; P—Parallel-arrany; S—Staggered-arrany; H—Heat treatment.

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表 2 Al₂O₃p/高锰钢球形网络复合材料界面成分 wt%

Table 2. Interfacial composition of Al₂O₃p/HMS spherical interpenetrating composite wt%

Area\ Element	Al	O	Si	Cr	Mn	Fe
Al₂O₃	46.3	42.2	0.3	—	0.7	—
Interface	14.7	21.8	11.6	0.6	22.2	4.7
Matrix	—	—	0.4	1.9	10.3	78.9

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表 3 Al₂O₃p/高锰钢球形网络复合材料、均匀复合材料和基体材料的压缩性能

Table 3. Compressive properties for Al₂O₃p/HMS spherical interpenetrating composites, uniformly dispersed compositeand matrix material

Codename	Yield strength/MPa	Compressive strength/MPa	Strain
HMS	528.3	—	—
Al₂O₃p/HMS	360.8	396.8	0.023
Al₂O₃p(φ6-P)/HMS	1096.4	1333.6	0.054
Al₂O₃p(φ7-P)/HMS	1048.6	1301.1	0.052
Al₂O₃p(φ8-P)/HMS	867.5	1053.5	0.049

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表 4 相同构型参数下平行排布与错落排布的Al₂O₃p/高锰钢球形网络复合材料压缩性能

Table 4. Compression property for parallel-arrany and staggered-arrany Al₂O₃p/HMS spherical interpenetrating composites with the same architectured parameter

Codename	Yield strength/ MPa	Compressive strength/ MPa	Strain
Al₂O₃p(φ8-P)/HMS	867.5	1053.5	0.049
Al₂O₃p(φ8-S)/HMS	962.1	1354.0	0.057

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表 5 Al₂O₃p/高锰钢球形网络复合材料、均匀复合材料和基体材料热处理前后的压缩性能

Table 5. Compressive properties for Al₂O₃p/HMS spherical interpenetrating composites, uniformly dispersed composite and matrix materials before and after heat treatment

Codename	Yield strength/MPa	Compressive strength/MPa	Strain
HMS	528.3	—	—
Al₂O₃p/HMS	360.8	396.8	0.023
Al₂O₃p(φ8-S)/HMS	962.1	1354.0	0.057
Al₂O₃p(φ8-S)/HMS(H)	623.7	1503.8	0.150
Al₂O₃p/HMS(H)	305.8	338.4	0.030
HMS(H)	406.9	—	—

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