What is it about?
The main objectives of the paper are to determine the mechanical characteristics of multilayered steel by hot forging. The approach is to obtain bimetallic layered steel by hot forging. This new multilayer system combines the advantages of both materials and reduces the major inconvenience of each one being taken separately. Often, the outer part of the piece is made of other metallic material to provide outstanding properties, as well as to reduce the cost price.
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Why is it important?
The multi-layered system studied was made by hot forging 36 layers of material 40x40x1000 mm; the forging temperature was 1250ºC. Two materials were used, a 30x5 mm C45 band according to EN 10083-2:2006-10  and the S235JR steel band (30x5 mm) according to EN 10025:2:2004 , to produce three types of bars from which test specimens were prepared for mechanical tests (impact test SR EN ISO 148:2017 , tensile testing of metallic materials SR EN ISO 6892-1:2016 , hardness test EN ISO 6506:2015 ). The test pieces were processed by shaping to the Charpy impact tests (U notch), as follows: S235JR multilayer steel specimens Fig. 1a, multilayer steel C45 specimens Fig. 1b and specimens consisting of two sandwich multilayer materials (C45 - S235JR - C45) Fig. 1c. The borax was used to clean the oxides between layers, ensuring better bonding of the layers.
Read the Original
This page is a summary of: Research on the mechanical properties of C45/S235JR multilayer steel systems, Procedia Manufacturing, January 2019, Elsevier, DOI: 10.1016/j.promfg.2019.02.176.
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