期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：186
期号：2
页码：012018
DOI：10.1088/1755-1315/186/2/012018
语种：English
出版社：IOP Publishing
摘要：Iron-based surfacing alloys have a wide range of applications. They are lighter in structure, simpler in technology, and better in toughness and wear resistance. They can meet different performance requirements, It is cheaper and more diverse in variety, so they are most widely used. In this paper, a Fe-Cr-C surfacing layer sample was prepared on Q235 low carbon steel substrate by submerged arc welding. The effect of changes in the content of C on the microstructure and hardness of Fe-Cr-C surfacing alloys was studied. The microstructure of the solder layer was analyzed using optical microscope. The results show that the change of carbon content directly affects the morphology of carbides and the number of carbides. When the carbon content increases by a certain value, the hardness increases but the crack resistance deteriorates. With the increase of carbon content, the hardness increases, but the crack resistance decreases.
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