汤德林,刘相华,宋孟

• 1:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

对1060工业纯铝分别进行室温轧制和深冷轧制,取成品厚度为300、200、100、50和25μm 5组试样进行拉伸试验。结果表明,经过室温轧制的轧件,当其厚度减薄至100μm时出现微尺寸效应,即厚度大于100μm时随厚度减小抗拉强度增大,厚度小于100μm时随厚度减小抗拉强度减小;发现100μm是纯铝室温轧制时出现尺寸效应的临界值。与室温轧制相比,经过深冷轧制轧件微尺寸效应的临界值相同而表现形式不同,厚度小于临界值100μm后其抗拉强度随厚度减小而增加的速度加快。在相同厚度条件下,深冷轧制后的轧件比室温轧制的晶粒内部亚结构更细小,分析认为这是其强度高于室温轧制的一个原因。

关键词(KeyWords)： 极薄带;深冷轧制;抗拉强度;微尺寸效应

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51374069)

作者(Author): 汤德林,刘相华,宋孟

DOI: 10.13289/j.issn.1009-6264.2015.02.007

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