Effect of microstructural variation on the Cu/CK45 carbon steel friction weld joint
Effect of microstructural variation on the Cu/CK45 carbon steel friction weld joint
复制标题
微观结构变化对 Cu/CK45 碳钢摩擦焊接头的影响
DOI：
10.3139/146.031300
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发表时间：
2003
影响因子：
0.8
通讯作者：
S. B. Jung
中科院分区：
文献类型：
--
作者：
W. Lee;S. B. Jung
研究了纯铜/CK45碳钢摩擦焊接头的力学性能。接头强度随着顶锻压力的增加而增加，直至达到临界值。然而，与铜母材相比，随着摩擦时间的增加，接头强度保持在较低的强度。铜侧界面附近的硬度比母材的硬度低，这是由于动态再结晶和退火晶造成的。软化区宽度随摩擦时间的延长和顶锻压力的减小而变宽。但CK45碳钢一侧的硬度值略高于母材。这一结果是由于焊接过程中CK45碳钢一侧形成马氏体组织所致。
Abstract The mechanical properties of friction-welded pure Cu/CK45 carbon steel joints have been studied. The joint strength increased with increasing upset pressure till it reached a critical value. However, the joint strength was fixed at a low strength with increasing friction time, compared to that of the Cu base metal. The hardness near the interface at the Cu side was softer than that of the base metal due to the dynamically recrystallized and annealed grain. The width of the softened region became wider with increasing friction time and decreasing upset pressure. But the hardness of the CK45 carbon steel side showed a slightly higher value than that of the base metal. This result was explained by the formation of martensite structure at the CK45 carbon steel side during the welding process.