Article(id=1236319262873285159, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236316193171239730, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2023.03.035, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1668873600000, receivedDateStr=2022-11-20, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772691081970, onlineDateStr=2026-03-05, pubDate=1685548800000, pubDateStr=2023-06-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772691081970, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772691081970, creator=13701087609, updateTime=1772691081970, updator=13701087609, issue=Issue{id=1236316193171239730, tenantId=1146029695717560320, journalId=1235980550691926019, year='2023', volume='43', issue='3', pageStart='1', pageEnd='179', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772690350096, creator=13701087609, updateTime=1772691872061, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236322576809652696, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236316193171239730, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236322576809652697, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236316193171239730, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=156, endPage=159, ext={EN=ArticleExt(id=1236319263229801004, articleId=1236319262873285159, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Microstructure and Properties of Cu-Al Alloy Sintered by Laser-Induced Self-propagating Synthesis, columnId=1236276108207902848, journalTitle=Mining and Metallurgical Engineering, columnName=MATERIALS, runingTitle=null, highlight=null, articleAbstract=

With laser high-energy beam as heat source to initiate exothermic reaction, Cu-Al powder was compacted and sintered into Cu-Al alloy containing in-situ formed hard reinforcing phase Al2O3 by laser-induced self-propagating synthesis. The effect of Cu-Al ratio in the composition on the microstructure and properties of alloy system was explored. The results show that the microstructure of Cu-Al alloy is a multiphase structure composed of hard reinforcing phase Al2O3 and matrix of CuAl2, AlCu4, Al4Cu9 and other intermetallic compounds. The alloy has rich dendritic crystals in microstructure, and becomes more uniform and fine-grained with the increase of aluminum content. Increasing the content of aluminum to a certain range is helpful to improve the compactness of sintered products. With copper and aluminum in a mass ratio of 33.2∶66.8, the sintered product has the lowest porosity (10.57% ), the highest microhardness (373HV) and the best wear resistance (with wear rate of 0.137 g/mm2).

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针对铜铝粉末坯体,以激光高能束为热源引发铝热放热反应,原位合成硬质增强相Al2O3,烧结制备了Cu-Al合金,研究了铜铝成分配比对合金体系微观组织和性能的影响。结果表明,Cu-Al合金组织是由硬质增强相Al2O3和基体CuAl2、AlCu4、Al4Cu9等金属间化合物构成的多相结构;合金显微组织具有丰富的树枝晶,且随着铝含量增加,组织均匀细化程度提高;在一定范围内,增加铝含量有助于提高烧结产物致密性;当铜铝质量比为33.2∶66.8时,烧结产物的孔隙率最低(10.57%)、显微硬度值最高(373HV)、磨损性最佳(磨损率0.137 g/mm2)。

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李刚(1969—),男(蒙古族),辽宁阜新人,博士,教授,主要从事高能束材料表面改性研究。
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水东莉(1986—),女,辽宁阜新人,硕士,讲师,主要从事激光引燃制备复合材料的研究。

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水东莉(1986—),女,辽宁阜新人,硕士,讲师,主要从事激光引燃制备复合材料的研究。

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水东莉(1986—),女,辽宁阜新人,硕士,讲师,主要从事激光引燃制备复合材料的研究。

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激光烧结原位合成Cu-Al合金组织结构及性能研究
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水东莉 1 , 李刚 2 , 徐晓辰 2
矿冶工程杂志 | 材料 2023,43(3): 156-159
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矿冶工程杂志 | 材料 2023, 43(3): 156-159
激光烧结原位合成Cu-Al合金组织结构及性能研究
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水东莉1, 李刚2, 徐晓辰2
作者信息
  • 1.辽宁农业职业技术学院 农业装备工程学院,辽宁 营口 115009
  • 2.营口理工学院,辽宁 营口 115014
  • 水东莉(1986—),女,辽宁阜新人,硕士,讲师,主要从事激光引燃制备复合材料的研究。

通讯作者:

李刚(1969—),男(蒙古族),辽宁阜新人,博士,教授,主要从事高能束材料表面改性研究。
Microstructure and Properties of Cu-Al Alloy Sintered by Laser-Induced Self-propagating Synthesis
Dongli SHUI1, Gang LI2, Xiaochen XU2
Affiliations
  • 1.School of Agricultural Equipment Engineering, Liaoning Agricultural Vocational and Technical College, Yingkou 115009, Liaoning, China
  • 2.Yingkou College of Technology, Yingkou 115014, Liaoning, China
出版时间: 2023-06-01 doi: 10.3969/j.issn.0253-6099.2023.03.035
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针对铜铝粉末坯体,以激光高能束为热源引发铝热放热反应,原位合成硬质增强相Al2O3,烧结制备了Cu-Al合金,研究了铜铝成分配比对合金体系微观组织和性能的影响。结果表明,Cu-Al合金组织是由硬质增强相Al2O3和基体CuAl2、AlCu4、Al4Cu9等金属间化合物构成的多相结构;合金显微组织具有丰富的树枝晶,且随着铝含量增加,组织均匀细化程度提高;在一定范围内,增加铝含量有助于提高烧结产物致密性;当铜铝质量比为33.2∶66.8时,烧结产物的孔隙率最低(10.57%)、显微硬度值最高(373HV)、磨损性最佳(磨损率0.137 g/mm2)。

激光烧结  /  增强相  /  硬质相  /  原位合成  /  三氧化二铝  /  Cu-Al合金  /  微观组织

With laser high-energy beam as heat source to initiate exothermic reaction, Cu-Al powder was compacted and sintered into Cu-Al alloy containing in-situ formed hard reinforcing phase Al2O3 by laser-induced self-propagating synthesis. The effect of Cu-Al ratio in the composition on the microstructure and properties of alloy system was explored. The results show that the microstructure of Cu-Al alloy is a multiphase structure composed of hard reinforcing phase Al2O3 and matrix of CuAl2, AlCu4, Al4Cu9 and other intermetallic compounds. The alloy has rich dendritic crystals in microstructure, and becomes more uniform and fine-grained with the increase of aluminum content. Increasing the content of aluminum to a certain range is helpful to improve the compactness of sintered products. With copper and aluminum in a mass ratio of 33.2∶66.8, the sintered product has the lowest porosity (10.57% ), the highest microhardness (373HV) and the best wear resistance (with wear rate of 0.137 g/mm2).

laser sintering  /  reinforcing phase  /  hard phase  /  in-situ synthesis  /  Al2O3  /  Cu-Al alloy  /  microstructure
水东莉, 李刚, 徐晓辰. 激光烧结原位合成Cu-Al合金组织结构及性能研究. 矿冶工程杂志, 2023 , 43 (3) : 156 -159 . DOI: 10.3969/j.issn.0253-6099.2023.03.035
Dongli SHUI, Gang LI, Xiaochen XU. Microstructure and Properties of Cu-Al Alloy Sintered by Laser-Induced Self-propagating Synthesis[J]. Mining and Metallurgical Engineering, 2023 , 43 (3) : 156 -159 . DOI: 10.3969/j.issn.0253-6099.2023.03.035
  • 辽宁省教育厅科技研究项目(LJKZ1195)
  • 营口理工学院创新团队支持计划(TD202001)
  • 营口理工学院高层次人才科研启动项目(YJRC202014)
2023年第43卷第3期
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doi: 10.3969/j.issn.0253-6099.2023.03.035
  • 接收时间:2022-11-20
  • 首发时间:2026-03-05
  • 出版时间:2023-06-01
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  • 收稿日期:2022-11-20
基金
辽宁省教育厅科技研究项目(LJKZ1195)
营口理工学院创新团队支持计划(TD202001)
营口理工学院高层次人才科研启动项目(YJRC202014)
作者信息
    1.辽宁农业职业技术学院 农业装备工程学院,辽宁 营口 115009
    2.营口理工学院,辽宁 营口 115014

通讯作者:

李刚(1969—),男(蒙古族),辽宁阜新人,博士,教授,主要从事高能束材料表面改性研究。
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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