Article(id=1195319423281173075, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1195319418159932270, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20240370, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1762915958470, onlineDateStr=2025-11-12, pubDate=1737302400000, pubDateStr=2025-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1762915958470, onlineIssueDateStr=2025-11-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1762915958470, creator=13701087609, updateTime=1762915958470, updator=13701087609, issue=Issue{id=1195319418159932270, tenantId=1146029695717560320, journalId=1189873562199433220, year='2025', volume='', issue='1', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1762915957247, creator=13701087609, updateTime=1762916385696, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1195321215284973686, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1195319418159932270, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1195321215284973687, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1195319418159932270, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=23, endPage=29, ext={EN=ArticleExt(id=1195319426447872604, articleId=1195319423281173075, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Development and Application of Heat-Treatment Free Aluminum Alloy for Integrated Die-Casting, columnId=1190284220686766583, journalTitle=Automobile Technology & Material, columnName=Original article, runingTitle=null, highlight=null, articleAbstract=
To obtain high-performance heat-treated free aluminum alloys, 3 kinds of Al-Si based heat-treated free aluminum alloys with different composition ratios are designed by adjusting the mass fractions of each element in the alloy. The melting temperature range, structure phase composition, fracture morphology, tensile and fatigue performance of 3 kind of alloys are analyzed by using Differential Scanning Calorimeter (DSC), metallographic microscope, scanning electron microscope, tensile testing machine and electromagnetic resonance fatigue testing machine. The results show that 2# alloy has good casting fluidity, metallographic structure, comprehensive strength and toughness properties and casting manufacturability, with a melting temperature range of 55 ℃, the tensile strength, yield strength and elongation rate at break are 303 MPa, 153 MPa and 11.3%, respectively. The average axial tensile compressive fatigue strength at 1×107 cycles is 125 MPa, which is superior to the fatigue performance of AlSi9Cu3 (Fe) die-casting alloy commonly applied in the automotive industry.
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为获得性能优异的一体压铸用免热处理铝合金,通过调整合金中各元素的质量分数,设计出3种不同成分比例的Al-Si系免热处理铝合金,采用差示扫描量热仪(DSC)、金相显微镜、扫描电镜、拉伸试验机和电磁共振式疲劳试验机对3种合金的熔化温度区间、组织相构成、断口形貌、拉伸与疲劳性能进行分析,结果表明,2#合金的熔化温度区间为55 ℃,抗拉强度、屈服强度、断后伸长率分别为303 MPa、153 MPa、11.3%,在1×107循环周次下的轴向拉压疲劳强度均值为125 MPa,因此,2#合金具有良好的铸造流动性、金相组织、强韧综合性能与铸造工艺性,且疲劳性能优于汽车行业普遍应用的AlSi9Cu3(Fe)压铸合金。
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张鑫(1985—),男,高级工程师,硕士学位,研究方向为汽车新材料开发。
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张鑫(1985—),男,高级工程师,硕士学位,研究方向为汽车新材料开发。
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金属材料疲劳试验数据统计方案与分析方法: GB/T 24176—2009[S]. 北京: 中国标准出版社,
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ORBULOV I N. Fatigue Testing and Non-Destructive Characterization of AlSi9Cu3(Fe) Die Cast Specimens by Computer Tomography[J].
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43(9): 1949-1958., articleTitle=Fatigue Testing and Non-Destructive Characterization of AlSi9Cu3(Fe) Die Cast Specimens by Computer Tomography, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1195336476960539170, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, xref=null, ext=[AuthorCompanyExt(id=1195336476973122083, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, companyId=1195336476960539170, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=FAW Jiefang Automobile Co., Ltd., Changchun 130011), AuthorCompanyExt(id=1195336476981510692, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, companyId=1195336476960539170, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=一汽解放汽车有限公司, 长春 130011)])], figs=[ArticleFig(id=1195336478969610822, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=jP9j/KHt+drZUifAGUxbyg==, figureFileBig=MQymnltvT+ZyexX0VFp0zA==, tableContent=null), ArticleFig(id=1195336479028331079, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图1, caption=
压铸试棒形貌, figureFileSmall=jP9j/KHt+drZUifAGUxbyg==, figureFileBig=MQymnltvT+ZyexX0VFp0zA==, tableContent=null), ArticleFig(id=1195336479108022856, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=aopJ979SLS1zFsebRO0gUA==, figureFileBig=9w07LqSmw0LrG+qdAsfR1g==, tableContent=null), ArticleFig(id=1195336479166743113, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图2, caption=
板状试样形貌, figureFileSmall=aopJ979SLS1zFsebRO0gUA==, figureFileBig=9w07LqSmw0LrG+qdAsfR1g==, tableContent=null), ArticleFig(id=1195336479238046282, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=JgnLdQrLAAnRQlMNjLHQkw==, figureFileBig=QhON+i+DTQ35ScD251erAw==, tableContent=null), ArticleFig(id=1195336479300960843, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图3, caption=
3种铝合金试棒DSC曲线, figureFileSmall=JgnLdQrLAAnRQlMNjLHQkw==, figureFileBig=QhON+i+DTQ35ScD251erAw==, tableContent=null), ArticleFig(id=1195336479359681100, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=7acwPk3RaPV7eH2wVF+2JA==, figureFileBig=OoMLl3rC2LYSXaqWG0pEWA==, tableContent=null), ArticleFig(id=1195336479422595661, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图4, caption=
金相组织, figureFileSmall=7acwPk3RaPV7eH2wVF+2JA==, figureFileBig=OoMLl3rC2LYSXaqWG0pEWA==, tableContent=null), ArticleFig(id=1195336479502287438, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=dX2cH4QRLOk5XVB0ofEvmg==, figureFileBig=8PdDjDo5h8BmL/8u/rERvw==, tableContent=null), ArticleFig(id=1195336479602950735, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图5, caption=
自主开发合金共晶硅形貌, figureFileSmall=dX2cH4QRLOk5XVB0ofEvmg==, figureFileBig=8PdDjDo5h8BmL/8u/rERvw==, tableContent=null), ArticleFig(id=1195336479678448208, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=SRJSfraSn2qe5rDWT3kATg==, figureFileBig=icFwQH5RMHphdUSWtGJOjg==, tableContent=null), ArticleFig(id=1195336479737168465, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图6, caption=
自主开发合金Al(Mn,Cr,Fe)Si相成分与形貌特征, figureFileSmall=SRJSfraSn2qe5rDWT3kATg==, figureFileBig=icFwQH5RMHphdUSWtGJOjg==, tableContent=null), ArticleFig(id=1195336479804277330, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=QIiEBOFjtpi02DYvDR1sFQ==, figureFileBig=Hh/sY7t0Ou7yC9QoHInIpQ==, tableContent=null), ArticleFig(id=1195336479862997587, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图7, caption=
压铸铝合金的抗弯曲性能对比, figureFileSmall=QIiEBOFjtpi02DYvDR1sFQ==, figureFileBig=Hh/sY7t0Ou7yC9QoHInIpQ==, tableContent=null), ArticleFig(id=1195336479913329236, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=SK2WaSxMjTbHVp/sVXYbdQ==, figureFileBig=dupm7hF9Di2pC1gGBi+7yA==, tableContent=null), ArticleFig(id=1195336479972049493, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图8, caption=
3种铝合金压铸试棒应力-应变曲线, figureFileSmall=SK2WaSxMjTbHVp/sVXYbdQ==, figureFileBig=dupm7hF9Di2pC1gGBi+7yA==, tableContent=null), ArticleFig(id=1195336480043352662, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=S0vU1hCMptfJy95XDuP5Ew==, figureFileBig=uiHeaKQWU4gx+gFein6NoQ==, tableContent=null), ArticleFig(id=1195336480097878615, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图9, caption=
3种铝合金压铸试棒断口形貌, figureFileSmall=S0vU1hCMptfJy95XDuP5Ew==, figureFileBig=uiHeaKQWU4gx+gFein6NoQ==, tableContent=null), ArticleFig(id=1195336480148210264, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=X3iNJdOhn247N22iSuCzLw==, figureFileBig=QaL5r2+ndBZWkEO+0HoyMA==, tableContent=null), ArticleFig(id=1195336480202736217, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图10, caption=
2#合金轴向拉压S-N曲线, figureFileSmall=X3iNJdOhn247N22iSuCzLw==, figureFileBig=QaL5r2+ndBZWkEO+0HoyMA==, tableContent=null), ArticleFig(id=1195336480265650778, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=UsUw9DoADWwpH0+LW/YMiw==, figureFileBig=YtbqSCFiAhl8HdK0M8pwtw==, tableContent=null), ArticleFig(id=1195336480315982427, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图11, caption=
AlSi9Cu3(Fe)轴向拉压S-N曲线[9], figureFileSmall=UsUw9DoADWwpH0+LW/YMiw==, figureFileBig=YtbqSCFiAhl8HdK0M8pwtw==, tableContent=null), ArticleFig(id=1195336480366314076, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=lVI+zZBJKnvXT3hAK5M38w==, figureFileBig=i+52PUsxCS5Fs8gsxjvmpA==, tableContent=null), ArticleFig(id=1195336480416645725, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图12, caption=
2#铝合金压铸电池包壳体, figureFileSmall=lVI+zZBJKnvXT3hAK5M38w==, figureFileBig=i+52PUsxCS5Fs8gsxjvmpA==, tableContent=null), ArticleFig(id=1195336480471171678, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=Fo1cx+qU5SnCkePZykmGrQ==, figureFileBig=WVuBFIowTeD/t/sr/WbjGA==, tableContent=null), ArticleFig(id=1195336480529891935, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=CN, label=图13, caption=
2#合金电池包壳体拉伸应力-应变曲线, figureFileSmall=Fo1cx+qU5SnCkePZykmGrQ==, figureFileBig=WVuBFIowTeD/t/sr/WbjGA==, tableContent=null), ArticleFig(id=1195336480584417888, tenantId=1146029695717560320, journalId=1189873562199433220, articleId=1195319423281173075, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 元素 | 1#合金 | 2#合金 | 3#合金 |
| Si | A |
| Mg | B | B+0.1% | B+0.2% |
| Cu | C | C | C+(0.2%~0.4%) |
| Fe | ≤0.3% |
| Mn | 0.3%~0.8% |
| Cr | ≤0.4% |
| Sr | ≤0.3% |
| 其他元素 | ≤0.2% | ≤0.4% | ≤0.4% |
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3款免热处理铝合金质量分数
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| 元素 | 1#合金 | 2#合金 | 3#合金 |
| Si | A |
| Mg | B | B+0.1% | B+0.2% |
| Cu | C | C | C+(0.2%~0.4%) |
| Fe | ≤0.3% |
| Mn | 0.3%~0.8% |
| Cr | ≤0.4% |
| Sr | ≤0.3% |
| 其他元素 | ≤0.2% | ≤0.4% | ≤0.4% |
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| 类别 | 熔化起始温度 | 共晶 熔化峰值 | 初生α-Al 熔化 峰值 | 熔化终止温度 | 熔化 区间 |
| 1# | 575 | 594 | 618 | 627 | 52 |
| 2# | 573 | 593 | 618 | 628 | 55 |
| 3# | 564 | 594 | 612 | 623 | 59 |
| YL112[5] | 538 | | | 593 | 55 |
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铝合金熔化温度 ℃
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| 类别 | 熔化起始温度 | 共晶 熔化峰值 | 初生α-Al 熔化 峰值 | 熔化终止温度 | 熔化 区间 |
| 1# | 575 | 594 | 618 | 627 | 52 |
| 2# | 573 | 593 | 618 | 628 | 55 |
| 3# | 564 | 594 | 612 | 623 | 59 |
| YL112[5] | 538 | | | 593 | 55 |
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| 元素 | Al | Si | Cr | Mn | Fe | 总量 |
| A点 | 质量分数 | 78.77 | 8.15 | 1.46 | 9.58 | 2.03 | 100.00 |
| 原子分数 | 84.65 | 8.42 | 0.81 | 5.06 | 1.06 | 100.00 |
| B点 | 质量分数 | 70.31 | 9.38 | 2.26 | 14.91 | 3.14 | 100.00 |
| 原子分数 | 78.70 | 10.09 | 1.31 | 8.20 | 1.70 | 100.00 |
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各点成份
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| 元素 | Al | Si | Cr | Mn | Fe | 总量 |
| A点 | 质量分数 | 78.77 | 8.15 | 1.46 | 9.58 | 2.03 | 100.00 |
| 原子分数 | 84.65 | 8.42 | 0.81 | 5.06 | 1.06 | 100.00 |
| B点 | 质量分数 | 70.31 | 9.38 | 2.26 | 14.91 | 3.14 | 100.00 |
| 原子分数 | 78.70 | 10.09 | 1.31 | 8.20 | 1.70 | 100.00 |
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| 类别 | 试样 | 抗拉强度 /MPa | 屈服强度 /MPa | 断后伸长率/% |
1# 合金 | 1 | 289.7 | 131.6 | 13.8 |
| 2 | 288.1 | 131.7 | 12.7 |
| 3 | 291.7 | 135.0 | 13.5 |
| 4 | 292.1 | 132.5 | 13.1 |
| 5 | 295.1 | 136.8 | 12.4 |
| 均值 | 291 | 134 | 13.1 |
2# 合金 | 1 | 304.8 | 155.7 | 11.3 |
| 2 | 306.0 | 155.2 | 11.2 |
| 3 | 299.0 | 151.0 | 11.7 |
| 4 | 306.5 | 152.2 | 11.8 |
| 5 | 300.0 | 152.0 | 10.7 |
| 均值 | 303 | 153 | 11.3 |
3# 合金 | 1 | 312.3 | 158.7 | 6.3 |
| 2 | 317.8 | 156.8 | 8.4 |
| 3 | 311.0 | 163.0 | 6.1 |
| 4 | 315.0 | 162.0 | 9.2 |
| 5 | 315.0 | 163.0 | 8.6 |
| 均值 | 314 | 161 | 7.7 |
| A380[7] | 320.4 | | 2.8 |
| YL112[7] | 328.3 | | 2.5 |
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压铸试棒力学性能对比
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| 类别 | 试样 | 抗拉强度 /MPa | 屈服强度 /MPa | 断后伸长率/% |
1# 合金 | 1 | 289.7 | 131.6 | 13.8 |
| 2 | 288.1 | 131.7 | 12.7 |
| 3 | 291.7 | 135.0 | 13.5 |
| 4 | 292.1 | 132.5 | 13.1 |
| 5 | 295.1 | 136.8 | 12.4 |
| 均值 | 291 | 134 | 13.1 |
2# 合金 | 1 | 304.8 | 155.7 | 11.3 |
| 2 | 306.0 | 155.2 | 11.2 |
| 3 | 299.0 | 151.0 | 11.7 |
| 4 | 306.5 | 152.2 | 11.8 |
| 5 | 300.0 | 152.0 | 10.7 |
| 均值 | 303 | 153 | 11.3 |
3# 合金 | 1 | 312.3 | 158.7 | 6.3 |
| 2 | 317.8 | 156.8 | 8.4 |
| 3 | 311.0 | 163.0 | 6.1 |
| 4 | 315.0 | 162.0 | 9.2 |
| 5 | 315.0 | 163.0 | 8.6 |
| 均值 | 314 | 161 | 7.7 |
| A380[7] | 320.4 | | 2.8 |
| YL112[7] | 328.3 | | 2.5 |
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| 条件 | 疲劳强度/MPa |
| 置信度0.5,存活率0.5 | 125 |
| 置信度0.9,存活率0.9 | 118 |
| 置信度0.95,存活率0.95 | 115 |
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2#铝合金不同置信度、存活率的疲劳强度估算值
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| 条件 | 疲劳强度/MPa |
| 置信度0.5,存活率0.5 | 125 |
| 置信度0.9,存活率0.9 | 118 |
| 置信度0.95,存活率0.95 | 115 |
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| 试样编号 | 抗拉强度 /MPa | 屈服强度 /MPa | 断后伸 长率/% |
| 1 | 274.5 | 149.6 | 8.5 |
| 2 | 278.9 | 155.0 | 6.7 |
| 3 | 267.2 | 139.8 | 8.9 |
| 4 | 270.6 | 142.5 | 8.4 |
| 均值 | 272.8 | 146.7 | 8.1 |
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电池包壳体力学性能
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| 试样编号 | 抗拉强度 /MPa | 屈服强度 /MPa | 断后伸 长率/% |
| 1 | 274.5 | 149.6 | 8.5 |
| 2 | 278.9 | 155.0 | 6.7 |
| 3 | 267.2 | 139.8 | 8.9 |
| 4 | 270.6 | 142.5 | 8.4 |
| 均值 | 272.8 | 146.7 | 8.1 |
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