郝海

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:材料科学与工程学院

学科:材料加工工程. 材料加工工程

办公地点:大连理工大学铸造中心308

联系方式:0411-84709458/13804098729

电子邮箱:haohai@dlut.edu.cn

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论文成果

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Fabrication of a new Al-Ti-C master alloy and its refining effect on AZ31

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论文类型:会议论文

发表时间:2014-11-30

收录刊物:EI、Scopus

卷号:833

页面范围:28-32

摘要:The Al-Ti-C master alloy with excessive carbon content was prepared by the self-propagating high-temperature synthesis (SHS) in melt method. The master alloy mainly contains Al4C3 and TiC phases, which exhibits satisfactory refining effect on AZ31 alloy. With 1.5wt.% addition of the master alloy, the grain size reduced from 280   m to 109   m. The tensile properties are also improved with the refinement of grain structure. The ultimate tensile strength increased from 105 MPa to 156 MPa while the elongation increased from 8.4% to 13.6%. The Al4C3 particles and TiC particles play important role in the refining process due to their low disregistry with   -Mg grains. ? (2015) Trans Tech Publications, Switzerland.