Superior bonding properties of dissimilar steel joint produced by electroslag remelting
Superior bonding properties of dissimilar steel joint produced by electroslag remelting
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DOI:
10.1007/s12540-015-5260-6
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发表时间:
2015-11
影响因子:
3.5
通讯作者:
Yongmoon Lee;Taekyung Lee;B. H. Kim;C. Lee
中科院分区:
文献类型:
--
作者:
Yongmoon Lee;Taekyung Lee;B. H. Kim;C. Lee
The joining of dissimilar steels, called clad steel, has attracted great attention recently due to its good material performances and productivity. The present work utilized an electroslag-remelting (ESR) process to join dissimilar carbon and stainless steels with enhanced bonding properties. The microstructural characteristics and bonding properties of the developed ESR-clad steel were investigated in comparison to those of other clad steels manufactured by conventional methods, including hot roll-bonding and weld overlaying. The microstructure of the developed alloy gradually changed within the bonding layer; this change is discussed in light of the phase transformation and fracture behavior. The ESR-clad steel had much higher bonding strength compared to the other steel joints in shear testing. Such an improvement in the bonding properties was attributed to the defect-free interface and low residual stress in the graded bonding layer of the ESR-clad steel.