| 引用本文: | 毕莉明,刘 平,陈小红,郭奎选,周 腾.冷轧Cu基原位复合材料组织演变及性能研究[J].材料科学与工艺,2013,21(2):102-107.DOI:10.11951/j.issn.1005-0299.20130218. |
| BI Li-ming,LIU Ping,CHEN Xiao-hong,GUO Kui-xuan,ZHOU Teng.Study on microstructure evolvement and properties of cold-rolling Cu-matix composites[J].Materials Science and Technology,2013,21(2):102-107.DOI:10.11951/j.issn.1005-0299.20130218. |
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| 摘要: |
| 采用冷拉拔与冷轧相结合的变形方式将Cu-15Cr-0.24Zr合金制备成纤维增强复合薄板材料.采用扫描电子显微镜(SEM)对不同变形量下Cr纤维的形态进行观察,利用拉力试验机和电阻率测试仪对不同变形量下的薄板材料进行抗拉强度和电阻率测试.结果表明:冷拔变形量为5.18时,枝晶Cr已经具备了纤维的基本形貌,但纤维不连续,呈竹叶状；冷轧变形量为91.6%时,形成了均匀、连续的Cr纤维,并且由竹叶状演变为板条状；在冷轧变形量为91.6%时,成功制备出抗拉强度大于800MPa,导电率大于70%IACS的Cu-15Cr-0.24Zr薄板材料. |
| 关键词: Cu-15Cr 微观组织 冷轧 复合材料 |
| DOI：10.11951/j.issn.1005-0299.20130218 |
| 分类号: |
| 基金项目:上海市教委创新项目(11YZ112);上海市科委基础研究重点项目(10JC1411800);上海市研究生创新基金项目(JWCXSL1101);上海市教育委员会重点学科建设项目(J50503). |
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| Study on microstructure evolvement and properties of cold-rolling Cu-matix composites |
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BI Li-ming1,LIU Ping2,CHEN Xiao-hong2,GUO Kui-xuan2,ZHOU Teng2
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(1.School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China; ;2.School of Materials Science and Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
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| Abstract: |
| Cu-15Cr-0.24Zr in situ sheets composites were prepared by cold drawing and cold rolling,and the microstructures were observed using SEM.The ultimate tensile strength(UTS) and electrical conductivity of the sheets composite were measured using ZWICK-Z50test machine and a ZY9987digital micro-ohmmeter.At drawing,when the strain is 5.18,the Cr dendritic evolves into non-uniform distribution filaments,and the morphology likes a bamboo;At cold rolling,when the strain is 91.6%,the Cr filaments evolves into continuous homogeneous lamellar morphology.The result shows that the Cu-15Cr-0.24Zr sheets have optimal properties with tensile strength of 800MPa and electrical conductivity of 70%IACS,when the rolling strain is 91.6%. |
| Key words: Cu-15Cr microstructure cold rolling composites |
