磁场对选区激光熔化AlSi10Mg合金组织和力学性能的影响

doi:10.13251/j.issn.0254-6051.2024.11.037

金属热处理 ›› 2024, Vol. 49 ›› Issue (11): 241-245.DOI: 10.13251/j.issn.0254-6051.2024.11.037

磁场对选区激光熔化AlSi10Mg合金组织和力学性能的影响

吴国强, 吴懋亮, 张坤, 刘鹏, 陈默

上海电力大学能源与机械工程学院, 上海 201306

收稿日期:2024-05-27 修回日期:2024-09-18 出版日期:2024-11-25 发布日期:2025-01-09
通讯作者: 吴懋亮,副教授,博士,E-mail:wumaoliang@shiep.edu.cn
作者简介:吴国强(1998—),男,硕士研究生,主要研究方向为3D打印,E-mail:wgq2432990106@163.com。

Effect of magnetic field on microstructure and mechanical properties of selective laser melted AlSi10Mg alloy

Wu Guoqiang, Wu Maoliang, Zhang Kun, Liu Peng, Chen Mo

Department of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 201306, China

Received:2024-05-27 Revised:2024-09-18 Online:2024-11-25 Published:2025-01-09

摘要/Abstract

摘要： 在330 W激光功率下,在有无磁场(0、150 mT)条件下,选区激光熔化(SLM)成形AlSi10Mg合金,研究了磁场的引入对合金组织和性能的影响。结果表明,有无磁场下合金组织均为α-Al和Si相,表明磁场引入对合金相无影响。150 mT磁场下,由于熔池中的阻尼效应降低了熔池流速,抑制了气孔的形成,提高了合金的致密度,相对密度增加约0.4%,硬度提升约11.8%。与无磁场SLM成形AlSi10Mg合金相比,150 mT磁场下,合金具有更好的极限抗拉强度和延展性,抗拉强度提升了约55 MPa,伸长率提升了约0.8%。

关键词: 选区激光熔化, AlSi10Mg合金, 磁场, 力学性能

Abstract: At laser power of 330 W, AlSi10Mg alloy was formed by selective laser melting (SLM) with and without a magnetic field (0, 150 mT), and the effect of magnetic field on the microstructure and properties of the SLMed alloy was studied. The results show that the alloy structure with and without magnetic field is composed of α-Al and Si phases, indicating that the introduction of magnetic field has no effect on the alloy phase. Under magnetic field of 150 mT, the damping effect in the molten pool reduces the flow velocity, suppresses the formation of pores, and increases the density of the alloy. The relative density increases by about 0.4%, and the hardness increases by about 11.8%. Compared with the SLMed AlSi10Mg alloy without magnetic field, the alloy has better ultimate tensile strength and ductility under 150 mT magnetic field, with an increase in tensile strength of about 55 MPa and an increase in elongation of about 0.8%.

Key words: selective laser melting, AlSi10Mg alloy, magnetic field, mechanical properties

中图分类号:

吴国强, 吴懋亮, 张坤, 刘鹏, 陈默. 磁场对选区激光熔化AlSi10Mg合金组织和力学性能的影响[J]. 金属热处理, 2024, 49(11): 241-245.

Wu Guoqiang, Wu Maoliang, Zhang Kun, Liu Peng, Chen Mo. Effect of magnetic field on microstructure and mechanical properties of selective laser melted AlSi10Mg alloy[J]. Heat Treatment of Metals, 2024, 49(11): 241-245.

参考文献

[1]Qian M, Xu W, Brandt M, et al. Additive manufacturing and postprocessing of Ti-6Al-4V for superior mechanical properties[J]. MRS Bulletin, 2016, 41(10): 775-784.
[2]潘琰峰, 沈以赴, 顾冬冬, 等. 选择性激光烧结技术的发展现状[J]. 工具技术, 2004, 38(6): 3-7.
Pan Yanfeng, Shen Yifu, Gu Dongdong, et al. Present status of development for selective laser sintering (SLS)[J]. Tool Engineering, 2004, 38(6): 3-7.
[3]Hyer H, Zhou L, Park S, et al. Understanding the laser powder bed fusion of AlSi10Mg alloy[J]. Metallography Microstructure and Analysis, 2020(3): 484-502.
[4]Thijs L, Kempen K, Kruth J P, et al. Fine-structured aluminium products with controllable texture by selective laser melting of pre-alloyed AlSi10Mg powder[J]. Acta Materialia, 2013, 61(5): 1809-1819.
[5]Chen B, Moon S K, Yao X, et al. Strength and strain hardening of a selective laser melted AlSi10Mg alloy[J]. Scripta Materialia, 2017, 141: 45-49.
[6]Beaugnon E, Tournier R. Levitation of organic materials[J]. Nature, 1991, 349: 470.
[7]Wang J, He Y, Li J, et al. Strong magnetic field effect on the nucleation of a highly undercooled Co-Sn melt[J]. Scientific Reports, 2017, 7(1): 1-8.
[8]Liu T, Gao P F, Dong M, et al. Effect of cooling rate on magnetostriction gradients of Tb_0.27Dy_0.73Fe_1.95 alloys solidified in high magnetic field gradients[J]. Aip Advances, 2016, 6(5): 3642.
[9]杨玲玲. 电磁场对共晶铝硅合金组织和性能的影响[J]. 热加工工艺, 2015, 44(13): 79-81.
Yang Lingling. Effects of electromagnetic field on microstructure and properties of eutectic Al-Si alloy[J]. Hot Working Technology, 2015, 44(13): 79-81.
[10]Kao A D, Gao J R, Han M K, et al. Dendritic growth velocities in an undercooled melt of pure nickel under static magnetic fields: A test of theory with convection[J]. Acta Materialia, 2016, 103: 184-191.
[11]Khine Y Y, Walker J S. Thermoelectric magnetohydrodynamic effects during Bridgman semiconductor crystal growth with a uniform axial magnetic field[J]. Journal of Crystal Growth, 1999, 183(1): 150-158.
[12]Li X, Gagnoud A, Ren Z, et al. Investigation of thermoelectric magnetic convection and its effect on solidification structure during directional solidification under a low axial magnetic field[J]. Acta Materialia, 2009, 57(7): 2180-2197.
[13]Louvis E, Fox P, Sutcliffe C J. Selective laser melting of aluminium components[J]. Journal of Materials Processing Technology, 2011, 211(2): 275-284.
[14]Zhou X, Wang D Z, Liu X H, et al. 3D-imaging of selective laser melting defects in a Co-Cr-Mo alloy by synchrotron radiation micro-CT[J]. Acta Materialia, 2015, 98: 1-16.

[1]	周浩, 王帅, 曾燕屏, 马志宝, 周德, 郭德瑞, 董树青. 长时在役Inconel 783高温合金螺栓的显微组织和力学性能[J]. 金属热处理, 2024, 49(9): 36-42.
[2]	陈子健, 林业佳, 李传强, 邓仁昡, 董勇, 章争荣. 微合金化调控7075铝合金的微观组织与力学性能[J]. 金属热处理, 2024, 49(9): 58-63.
[3]	任广笑, 王超, 曹喜娟, 王凯, 王红霞, 程伟丽, 牛晓峰. 时效处理对Mg-Y-Gd-Zn-Zr合金中LPSO相演变及性能的影响[J]. 金属热处理, 2024, 49(9): 96-102.
[4]	任鹏帅, 秦凤, 周骞, 赵雷杰, 崔护, 彭子奥, 武常生. 等温淬火对含铝无碳化物贝氏体钢组织和性能的影响[J]. 金属热处理, 2024, 49(9): 103-109.
[5]	张宇, 李圣阳, 魏晓蓼, 柴志松, 李泳. 铬合金化Q&P钢的热处理工艺优化与碳配分行为[J]. 金属热处理, 2024, 49(9): 110-116.
[6]	张青科, 诸汇涛, 陈根保, 陈立田, 夏亚金, 胡方勤, 宋振纶. 形变热处理对新型无Ti马氏体时效钢焊缝组织与力学性能的影响[J]. 金属热处理, 2024, 49(9): 117-124.
[7]	夏琳燕, 史湘琴, 刘逸卿, 周模豪, 邓蔚. 时效对铸造Al-Si-Cu-Mg合金力学性能和耐蚀性能的影响[J]. 金属热处理, 2024, 49(9): 152-157.
[8]	万志健, 安涛, 于文坛, 刘学华, 童乐, 赵海. 热处理工艺对42CrMo-R钢轮箍组织及力学性能的影响[J]. 金属热处理, 2024, 49(9): 158-164.
[9]	涂正平, 吴逸飞, 于安华, 陈晓伟, 王维俊. 超导磁体热处理对N50H不锈钢铠甲力学性能的影响[J]. 金属热处理, 2024, 49(9): 165-168.
[10]	赖春明, 李琴, 周家林, 吴兴欢, 黄艳. 焊后热处理对热丝TIG焊接10Cr9Mo1VNb锅炉用钢组织性能的影响[J]. 金属热处理, 2024, 49(9): 169-175.
[11]	刘强, 盛智勇, 张超, 李杰, 陈泽, 陈送义, 陈康华. 预变形对7085超强铝合金环件组织与性能的影响[J]. 金属热处理, 2024, 49(9): 176-184.
[12]	徐锋, 孙强, 贾云浩. 时效处理对15-5PH不锈钢室温和低温力学性能的影响[J]. 金属热处理, 2024, 49(9): 191-197.
[13]	马蓼奕, 董志, 杨立新, 李世键, 崔晶, 康冲. 淬火转移时间对16CrSiNi钢回火组织和性能的影响[J]. 金属热处理, 2024, 49(9): 198-203.
[14]	杨哲, 陈水胜. 时效工艺对ADC12铝合金析出相与力学性能的影响[J]. 金属热处理, 2024, 49(9): 216-220.
[15]	李喆, 李睿, 蔡磊, 靳军军. 固溶处理对机车车辆抱轴箱内壁堆焊层组织和力学性能的影响[J]. 金属热处理, 2024, 49(9): 226-231.

磁场对选区激光熔化AlSi10Mg合金组织和力学性能的影响

Effect of magnetic field on microstructure and mechanical properties of selective laser melted AlSi10Mg alloy

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价