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首页> 外文期刊>ISIJ international >Characteristics of High Speed Steel/ductile Cast Iron Composite Roll Manufactured by Electroslag Remelting Cladding
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Characteristics of High Speed Steel/ductile Cast Iron Composite Roll Manufactured by Electroslag Remelting Cladding

机译：电卸料覆层制造的高速钢/球墨铸铁复合辊的特性

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摘要

In the present study, high-speed steel (HSS)/ductile cast iron (DCI) composite roll was manufactured by the electroslag remelting cladding (ESRC) technology. The compositional variation, grain size, microstructure, hardness, and tensile strength of the HSS layer and the bimetallic interface were investigated systematically. The obtained results illustrated that the chemical composition of the cladding layer (HSS) changed dramatically due to the surface melting of the roll core (DCI) and the mechanical mixing of the bimetallic liquids. The different solidification rates and chemical compositions in different regions of the HSS layer led to great variations of the grain size, the carbide content, and the hardness. In addition, a bimetallic transition zone (about 9.47 mm) was generated between the HSS layer and the DCI core due to the elemental migration and diffusion between the bimetals. Carbides of different types, morphologies, sizes, and compositions had direct influences on interfacial properties.
机译：在本研究中，高速钢（HSS）/延性铸铁（DCI）复合辊由电渣refelting包层（ESRC）技术制造。系统地研究了HSS层和双金属界面的组成变化，粒度，微观结构，硬度和拉伸强度。所得结果表明，由于辊芯（DCI）的表面熔化和双金属液体的机械混合，包层（HSS）的化学成分显着变化。 HSS层的不同区域中的不同凝固率和化学组成导致晶粒尺寸，碳化物含量和硬度的大变化。另外，由于双金属之间的元素迁移和扩散，在HSS层和DCI核之间产生了双金属过渡区（约9.47mm）。不同类型，形态，尺寸和组合物的碳化物对界面性质具有直接影响。

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