2050铝锂合金板材拉伸力学性能三维各向异性
TB31; 随着铝锂(Al-Li)合金在航空航天领域的应用愈发广泛,对其各向异性研究有助于 Al-Li合金的进一步开发利用.采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、电子背散射衍射(EBSD)等对 T3 态 2050 Al-Li合金板材进行显微观察,通过拉伸实验对合金板材轧制方向、垂直轧制方向、厚度方向的拉伸力学性能三维各向异性进行研究.结果表明:T3 态 2050 Al-Li合金轧制板材轧向中间层强度最高,屈服强度为 370 MPa,抗拉强度为465 MPa,而伸长率最小,为 9.6%;合金板材横向表面层强度最低,屈服强度为 325 MPa,抗拉强度为 4...
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Published in | 材料工程 Vol. 51; no. 9; pp. 97 - 106 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | Chinese |
Published |
北京理工大学 材料学院,北京 100081%北京理工大学机械与车辆学院,北京 100081%北京理工大学 材料学院,北京 100081
01.09.2023
北京理工大学前沿交叉科学研究院,北京 100081 |
Subjects | |
Online Access | Get full text |
ISSN | 1001-4381 |
DOI | 10.11868/j.issn.1001-4381.2022.000432 |
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Abstract | TB31; 随着铝锂(Al-Li)合金在航空航天领域的应用愈发广泛,对其各向异性研究有助于 Al-Li合金的进一步开发利用.采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、电子背散射衍射(EBSD)等对 T3 态 2050 Al-Li合金板材进行显微观察,通过拉伸实验对合金板材轧制方向、垂直轧制方向、厚度方向的拉伸力学性能三维各向异性进行研究.结果表明:T3 态 2050 Al-Li合金轧制板材轧向中间层强度最高,屈服强度为 370 MPa,抗拉强度为465 MPa,而伸长率最小,为 9.6%;合金板材横向表面层强度最低,屈服强度为 325 MPa,抗拉强度为 431 MPa,伸长率最高为19.2%.合金板材不同厚度层断口形貌、晶粒大小不同;2050 Al-Li 合金板材不同厚度层各向异性程度不同:0T(表面层)、0.25 T(中间层)屈服强度和抗拉强度各向异性强,伸长率各向异性弱;而 0.5T(中心层)屈服强度和抗拉强度各向异性弱,伸长率各向异性强.2050 Al-Li合金板材不同厚度层各向异性主要由晶粒取向、织构引起,0T 和 0.5T 厚度层最强织构类型均为{011} 黄铜织构. |
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AbstractList | TB31; 随着铝锂(Al-Li)合金在航空航天领域的应用愈发广泛,对其各向异性研究有助于 Al-Li合金的进一步开发利用.采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、电子背散射衍射(EBSD)等对 T3 态 2050 Al-Li合金板材进行显微观察,通过拉伸实验对合金板材轧制方向、垂直轧制方向、厚度方向的拉伸力学性能三维各向异性进行研究.结果表明:T3 态 2050 Al-Li合金轧制板材轧向中间层强度最高,屈服强度为 370 MPa,抗拉强度为465 MPa,而伸长率最小,为 9.6%;合金板材横向表面层强度最低,屈服强度为 325 MPa,抗拉强度为 431 MPa,伸长率最高为19.2%.合金板材不同厚度层断口形貌、晶粒大小不同;2050 Al-Li 合金板材不同厚度层各向异性程度不同:0T(表面层)、0.25 T(中间层)屈服强度和抗拉强度各向异性强,伸长率各向异性弱;而 0.5T(中心层)屈服强度和抗拉强度各向异性弱,伸长率各向异性强.2050 Al-Li合金板材不同厚度层各向异性主要由晶粒取向、织构引起,0T 和 0.5T 厚度层最强织构类型均为{011} 黄铜织构. |
Author | 胡锦龙 王俊升 闫杨予 郭跃岭 钱锋 邱义 韩启飞 |
AuthorAffiliation | 北京理工大学 材料学院,北京 100081%北京理工大学机械与车辆学院,北京 100081%北京理工大学 材料学院,北京 100081;北京理工大学前沿交叉科学研究院,北京 100081 |
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Author_FL | YAN Yangyu QIAN Feng HAN Qifei WANG Junsheng QIU Yi GUO Yueling HU Jinlong |
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DocumentTitle_FL | Three-dimensional anisotropy of tensile mechanical properties of 2050 Al-Li alloy plate |
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Keywords | 力学性能 2050 Al-Li alloy rolling 织构 2050Al-Li合金 texture anisotropy 各向异性 mechanical property 轧制 |
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Title | 2050铝锂合金板材拉伸力学性能三维各向异性 |
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