加热工艺对5083铝合金轧制组织与性能的影响
|
摘要
对5083铝合金铸锭进行了不同温度和时间加热后的轧制,采用金相、SEM、EDS、EBSD等方法对试样的组织进行了观察分析,采用室温拉伸测试了试样的力学性能。研究了不同加热工艺对5083铝合金轧制组织性能的影响。结果表明,420℃加热15 h后热轧的5083铝合金板材比其他两种加热工艺(510℃加热15 h和420℃加热2 h)轧制的板材,晶粒尺寸更细小,第二相更弥散均匀,其织构是铜织构({211}<111>);抗拉强度和屈服强度最高,其断后伸长率与其他两种加热工艺热轧的板相差不大。
The rolling process of 5083 aluminum alloy ingot at different temperatures and time was studied. The microstructure of the samples was observed and analyzed by metallography, SEM, EDS, EBSD and other methods. The mechanical properties of the sample were tested by room temperature tensile test. The effects of different heating processes on the microstructure and properties of rolled 5083 aluminum alloy were investigated. The results show that compared with the plate rolled by the other two heating processes(heating at 510℃ for 15 h and heating at 420℃ for 2 h), the grain sizes of 5083 aluminum alloy plate rolled by heating at 420℃ for 15 h are finer, the second phase is more diffuse and uniform, and the texture is copper texture({211}<111>); the tensile strength and yield strength are the highest, while the elongation is almost the same with hot rolled plate by other two heating processes.
The rolling process of 5083 aluminum alloy ingot at different temperatures and time was studied. The microstructure of the samples was observed and analyzed by metallography, SEM, EDS, EBSD and other methods. The mechanical properties of the sample were tested by room temperature tensile test. The effects of different heating processes on the microstructure and properties of rolled 5083 aluminum alloy were investigated. The results show that compared with the plate rolled by the other two heating processes(heating at 510℃ for 15 h and heating at 420℃ for 2 h), the grain sizes of 5083 aluminum alloy plate rolled by heating at 420℃ for 15 h are finer, the second phase is more diffuse and uniform, and the texture is copper texture({211}<111>); the tensile strength and yield strength are the highest, while the elongation is almost the same with hot rolled plate by other two heating processes.
引文
[1]罗兵辉,单毅敏,柏振海.退火温度对淬火后冷轧5083铝合金组织及腐蚀性能的影响[J].中南大学学报:自然科学版,2007,5(1):802-808.
[2]刘静安,罗昭敏.现代铝及铝加工业的发展特点及国内外发展水平对比[J].铝加工,2009,3(1):38-45.
[3]吕新宇.5083铝合金热轧板研究[J].轻合金加工技术,2002,3(1):15-19.
[4]郝志刚,黄晶,时羽,等.5083铝合金大规格扁锭熔铸工艺研究[J].轻合金加工技术,2006,7(1):15-17.
[5]马鹏程.5xxx系铝合金板材的组织和织构对其成形性和锯齿屈服行为的影响[D].北京:北京科技大学,2015.
[6]周庆波,张宏伟,冷金凤,等.化学成分对5083铝合金性能的影响[J].轻合金加工技术,2007,10(1):33-34.
[7]蒙玲,赵启忠,李春流,等.均匀化处理对5083铝合金铸锭组织与性能的影响[J].金属热处理,2014,8(1):101-104.
[8]孙有平,韩俊,张扬扬,等.退火处理对5083铝合金组织和性能的影响[J].铸造技术,2014,8(1):1703-1705.
[9]佟有志,刘静,孙兆霞,等.轧制工艺对5083铝合金薄板组织与性能的影响[J].轻合金加工技术,2012,8(1):33-36.
[2]刘静安,罗昭敏.现代铝及铝加工业的发展特点及国内外发展水平对比[J].铝加工,2009,3(1):38-45.
[3]吕新宇.5083铝合金热轧板研究[J].轻合金加工技术,2002,3(1):15-19.
[4]郝志刚,黄晶,时羽,等.5083铝合金大规格扁锭熔铸工艺研究[J].轻合金加工技术,2006,7(1):15-17.
[5]马鹏程.5xxx系铝合金板材的组织和织构对其成形性和锯齿屈服行为的影响[D].北京:北京科技大学,2015.
[6]周庆波,张宏伟,冷金凤,等.化学成分对5083铝合金性能的影响[J].轻合金加工技术,2007,10(1):33-34.
[7]蒙玲,赵启忠,李春流,等.均匀化处理对5083铝合金铸锭组织与性能的影响[J].金属热处理,2014,8(1):101-104.
[8]孙有平,韩俊,张扬扬,等.退火处理对5083铝合金组织和性能的影响[J].铸造技术,2014,8(1):1703-1705.
[9]佟有志,刘静,孙兆霞,等.轧制工艺对5083铝合金薄板组织与性能的影响[J].轻合金加工技术,2012,8(1):33-36.