Article(id=1236334638986220443, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2023.06.034, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1688572800000, receivedDateStr=2023-07-06, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772694747920, onlineDateStr=2026-03-05, pubDate=1701360000000, pubDateStr=2023-12-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772694747920, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772694747920, creator=13701087609, updateTime=1772694747920, updator=13701087609, issue=Issue{id=1236334630450819368, tenantId=1146029695717560320, journalId=1235980550691926019, year='2023', volume='43', issue='6', pageStart='1', pageEnd='183', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772694745886, creator=13701087609, updateTime=1772694896382, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236335261735506524, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236335261735506525, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1236334630450819368, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=157, endPage=161, ext={EN=ArticleExt(id=1236334639321764784, articleId=1236334638986220443, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Effect of Sequence of T6 Heat Treatment and Welding on Microstructure and Mechanical Properties of Friction Stir Welding Joints of A356 Al Alloy, columnId=1236276108207902848, journalTitle=Mining and Metallurgical Engineering, columnName=MATERIALS, runingTitle=null, highlight=null, articleAbstract=

The microstructure and mechanical properties of A356 aluminum alloy joints were studied after they were processed with technique of T6 heat treatment followed by friction stir welding (T6-FSW) and technique of friction stir welding followed by T6 heat treatment (FSW-T6) respectively. It is found that the nugget zone of T6-FSW joint is composed of dynamically recrystallized fine-grains, but the precipitates are dissolved or coarsened. The transverse tensile strength and elongation of T6-FSW joint are 214 MPa and 5.3% respectively, and an average hardness is 76HV0.5. The tensile strength and elongation of the nugget zone are 236 MPa and 12.5% respectively, and the impact toughness of the joint is 12.10 J. Abnormal grain growth occurs in the nugget zone of FSW-T6 joint, where fine precipitates with high density are formed. The transverse tensile strength and elongation of FSW-T6 joint are 254 MPa and 8.5% respectively, and an average hardness is 96HV0.5. The tensile strength and elongation of the nugget zone are 297 MPa and 7.0% respectively, and the impact toughness of the joint is 8.23 J.

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研究了A356铝合金在T6热处理后进行搅拌摩擦焊(T6-FSW)和搅拌摩擦焊后进行T6热处理(FSW-T6)2种不同工艺下的接头组织及力学性能。结果表明,T6-FSW接头的焊核区由细小的动态再结晶晶粒构成,但析出相发生溶解或粗化,接头横向拉伸时抗拉强度和延伸率分别为214 MPa和5.3%,平均硬度为76HV0.5,焊核区抗拉强度和延伸率分别为236 MPa和12.5%,接头冲击韧性为12.10 J;FSW-T6接头的焊核区发生异常晶粒长大,但具有高密度的细小析出相,接头横向拉伸的抗拉强度和延伸率分别为254 MPa和8.5%,平均硬度为96HV0.5,焊核区抗拉强度和延伸率分别为297 MPa和7.0%,接头冲击韧性为8.23 J。

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吴嘉(1998—),男,湖南衡阳人,硕士研究生,主要从事铝合金铸造与焊接技术研究。

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吴嘉(1998—),男,湖南衡阳人,硕士研究生,主要从事铝合金铸造与焊接技术研究。

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吴嘉(1998—),男,湖南衡阳人,硕士研究生,主要从事铝合金铸造与焊接技术研究。

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T6热处理与焊接顺序对A356铝合金搅拌摩擦焊接头组织和力学性能的影响
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吴嘉 1 , 杨昭 1 , 范纲衔 2 , 路建琦 1 , 李一凡 1 , 谭力笳 1
矿冶工程杂志 | 材料 2023,43(6): 157-161
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矿冶工程杂志 | 材料 2023, 43(6): 157-161
T6热处理与焊接顺序对A356铝合金搅拌摩擦焊接头组织和力学性能的影响
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吴嘉1, 杨昭1, 范纲衔2, 路建琦1, 李一凡1, 谭力笳1
作者信息
  • 1.中南大学 材料科学与工程学院,湖南 长沙 410083
  • 2.昆山六丰机械工业有限公司,江苏 昆山 215300
  • 吴嘉(1998—),男,湖南衡阳人,硕士研究生,主要从事铝合金铸造与焊接技术研究。

Effect of Sequence of T6 Heat Treatment and Welding on Microstructure and Mechanical Properties of Friction Stir Welding Joints of A356 Al Alloy
Jia WU1, Zhao YANG1, Gangxian FAN2, Jianqi LU1, Yifan LI1, Lijia TAN1
Affiliations
  • 1.School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
  • 2.Kunshan Liufeng Machinery Industry Co Ltd, Kunshan 215300, Jiangsu, China
出版时间: 2023-12-01 doi: 10.3969/j.issn.0253-6099.2023.06.034
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研究了A356铝合金在T6热处理后进行搅拌摩擦焊(T6-FSW)和搅拌摩擦焊后进行T6热处理(FSW-T6)2种不同工艺下的接头组织及力学性能。结果表明,T6-FSW接头的焊核区由细小的动态再结晶晶粒构成,但析出相发生溶解或粗化,接头横向拉伸时抗拉强度和延伸率分别为214 MPa和5.3%,平均硬度为76HV0.5,焊核区抗拉强度和延伸率分别为236 MPa和12.5%,接头冲击韧性为12.10 J;FSW-T6接头的焊核区发生异常晶粒长大,但具有高密度的细小析出相,接头横向拉伸的抗拉强度和延伸率分别为254 MPa和8.5%,平均硬度为96HV0.5,焊核区抗拉强度和延伸率分别为297 MPa和7.0%,接头冲击韧性为8.23 J。

A356铝合金  /  搅拌摩擦焊  /  T6热处理  /  析出相  /  异常晶粒长大  /  焊接接头  /  接头组织

The microstructure and mechanical properties of A356 aluminum alloy joints were studied after they were processed with technique of T6 heat treatment followed by friction stir welding (T6-FSW) and technique of friction stir welding followed by T6 heat treatment (FSW-T6) respectively. It is found that the nugget zone of T6-FSW joint is composed of dynamically recrystallized fine-grains, but the precipitates are dissolved or coarsened. The transverse tensile strength and elongation of T6-FSW joint are 214 MPa and 5.3% respectively, and an average hardness is 76HV0.5. The tensile strength and elongation of the nugget zone are 236 MPa and 12.5% respectively, and the impact toughness of the joint is 12.10 J. Abnormal grain growth occurs in the nugget zone of FSW-T6 joint, where fine precipitates with high density are formed. The transverse tensile strength and elongation of FSW-T6 joint are 254 MPa and 8.5% respectively, and an average hardness is 96HV0.5. The tensile strength and elongation of the nugget zone are 297 MPa and 7.0% respectively, and the impact toughness of the joint is 8.23 J.

A356 Al alloy  /  friction stir welding  /  T6 heat treatment  /  precipitate  /  abnormal grain growth  /  welding joints  /  microstructure of joint
吴嘉, 杨昭, 范纲衔, 路建琦, 李一凡, 谭力笳. T6热处理与焊接顺序对A356铝合金搅拌摩擦焊接头组织和力学性能的影响. 矿冶工程杂志, 2023 , 43 (6) : 157 -161 . DOI: 10.3969/j.issn.0253-6099.2023.06.034
Jia WU, Zhao YANG, Gangxian FAN, Jianqi LU, Yifan LI, Lijia TAN. Effect of Sequence of T6 Heat Treatment and Welding on Microstructure and Mechanical Properties of Friction Stir Welding Joints of A356 Al Alloy[J]. Mining and Metallurgical Engineering, 2023 , 43 (6) : 157 -161 . DOI: 10.3969/j.issn.0253-6099.2023.06.034
  • 湖南省自然科学基金(2019JJ40382)
  • 国家重点研发计划(2016YFB0300905)
2023年第43卷第6期
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doi: 10.3969/j.issn.0253-6099.2023.06.034
  • 接收时间:2023-07-06
  • 首发时间:2026-03-05
  • 出版时间:2023-12-01
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  • 收稿日期:2023-07-06
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湖南省自然科学基金(2019JJ40382)
国家重点研发计划(2016YFB0300905)
作者信息
    1.中南大学 材料科学与工程学院,湖南 长沙 410083
    2.昆山六丰机械工业有限公司,江苏 昆山 215300
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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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