MAZIAD,A.(*) ; GOUDA,M. (**)
(*)Mechanical Engineering Department, 10 th of Ramadan City.
(**)Engineering, British University In Egypt,BUE
Nowadays, in modern countries such as Japan and United States of America, HSLA steels
represents an important material in different fields of industry like automotive and
constructions for buildings and bridges.
For all of that mentioned above , we have studied the effect of adding different V percentages
to HSLA steel to see to what extent V plays an important role on the mechanical properties of
HSLA steel and to optimize the V content that can attain high tensile and yield strengths with
So, different four quantities of V had been added, e.g 0.04% , 0.155%, 0.19%, 0.19 % and
0.35% V and the Mechanical Properties had been investigated. It was found that
V has an important role in refining the structure. Where as the V content increases, the grain
size of ferrite and pearlite is decreased.
Also, it was found that the maximum effect of V on the mechanical properties was noticed
with increasing V from 0.04 to 0.19%, but a little effect was remarked with increasing V from
0.19 to 0.35%. So, , the optimum content of V in HSLA steel, which sustain a good
combination between tensile, yield and ductility, is 0.155.