Mechanism of Forming Joining on Backward Extrusion Forged Bonding Process
Mechanism of Forming Joining on Backward Extrusion Forged Bonding Process
复制标题
后向挤压锻造连接工艺的成形连接机理
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
T. Suganuma
中科院分区：
文献类型：
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作者：
Y. Yoshida;T. Ishikawa;T. Suganuma
采用低碳钢与纯铝进行了反挤压锻造连接.材料之间的结合强度通过在结合边界处切出的微拉伸试验来评估。最大结合强度大于铝的结合强度。此外，还利用扫描透射电镜（STEM）研究了反向挤压锻造连接的冶金机理。在边界处产生厚度约为3 nm的金属间化合物（IMC）层。该工艺适用于铝-镍、铝-铜之间的键合。通过使用微拉伸试验评估材料之间的结合强度，并且示出最大结合强度。用扫描电镜观察了拉伸试样的断口形貌，并讨论了界面结合强度与界面位置的关系。
A backward extrusion forged bonding using low carbon steel and pure aluminum is conducted. The bonding strength between the materials is evaluated by a micro tensile test that is cut out at the bonding boundary. The maximum bonding strength is larger than that of the aluminum. In addition, the metallurgical mechanism of the joining of the backward extrusion forged bonding is investigated by means of a scanning transmission electron microscope (STEM). An intermetallic compound (IMC) layer is produced at the boundary with a thickness of about 3 nm. The process is applied for bonding between aluminum-nickel and between aluminum-copper. The bonding strength between the materials was evaluated by using a micro tensile test and the maximum bonding strength is shown. Fractured surfaces of the tensile specimens are observed by scanning electron microscope (SEM) and relationship between bonding strength and position on the boundary is discussed.