DC与CC 5052铝合金冷轧后沿厚度方向织构分布状态对比的X射线衍射分析  

Comparison of Texture Distribution of Cold Rolled DC and CC AA 5052 Aluminum Alloy at Different Positions through Thickness Direction by XRD

作　　者：陈明彪[1,2] 马旻[1] 杨庆祥[1] 王珊[2] 刘文昌[1] ZHAO Ying-mei 

机构地区：[1]燕山大学材料科学与工程学院,亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004 [2]青海大学机械学院,青海西宁810016 [3]Division of Internal Medicine,Department of Medicine,Medical University of South Carolina

出　　处：《光谱学与光谱分析》2013年第9期2574-2578,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(51271159);河北省自然科学基金项目(E2011203164)资助

摘　　要：采用X射线衍射测试极图、使用专用软件计算织构取向分布函数(ODF),研究了热轧后454℃×4h再结晶退火的直接铸造5052铝合金板(DC 5052)和双履带连续冷却铸造5052铝合金板(CC 5052)冷轧制到不同压下量的试样,自表层至心部层的冷轧织构分布差别,为工业上生产及应用DC 5052与CC 5052铝合金冷轧板提供依据。结果显示:同样的大压下量时CC 5052的β织构强度及体积分数高于DC 5052的。冷轧前CC 5052的再结晶织构Cube的体积分数小于DC 5052的,剩余位向的体积分数多于DC 5052的,导致CC 5052表层的β织构强度及体积分数达到与1/4层、中心层接近所需要的冷轧压下量比DC 5052试样需要的小。CC 5052冷轧板冲压加工方面的性能优于DC 5052冷轧板。To provide gist of DC AA 5052and CC AA 5052aluminum alloy to industry production and application,the texture variation of cold rolled sheets through thickness direction was studied by X-ray diffraction method,and the difference in texture at surface,quarter and center layer was analyzed.The hot plates of direct chill cast（DC） AA 5052and continuous cast（CC） AA 5052aluminum alloy were annealed at 454℃for 4hours and then cold rolled to different reductions.The strength and volume fraction of the fiber in CC AA 5052aluminum alloy is larger than in DC AA 5052aluminum alloy after same rolling reduction.The volume fraction of the recrystallization texture cube in the CC AA 5052aluminum alloy is less than in the DC AA 5052 aluminum alloy,which result in that CC AA 5052aluminum alloy needs less cold rolling reduction than DC AA 5052aluminum alloy for generating the texture with same intensity and volume fraction at surface layer,quarter layer and center layer.The manufacturability and performance of CC AA 5052aluminum alloy is superior to DC AA 5052aluminum alloy for use in stamping.

关 键 词：铝合金 织构 冷轧织构 取向分布函数 X射线衍射 

分 类 号：TG13[一般工业技术—材料科学与工程]