Modern Methods of Construction Design pp 83-88 | Cite as
Influence of Heat Treatment on the Mechanical Properties of Steel Type (40X)
Abstract
This work includes in its theoretical review, some information about such type of constructural alloyed steel which has wide range of applications, referring to its chemical composition, hardness, UTS, yield point and ductility (elongation) in the hot rolled case. However in the practical part, several specimens were made in two forms, circular discs for hardness test after each heat treatment process, and specimens for mechanical test, machined to dimensions near the final standard dimensions in order to complete machining to accurate size after heat treatments to use them in testing UTS, yield point, elongation and contractions in cross section area.We used in this work the following heat treating: Full annealing, normalizing, oil quenching hardening, high and low tempering. These were done to determine the tested properties of this steel to enable the choose of suitable properties to demand or in case of looking for replacement material in production of given parts to help both designer and producer. The research included many tables and graphs and discussion of results.
Keywords
Engineering materials Heat treatment Steel 40XReferences
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