شماره ركورد كنفرانس :
143
عنوان مقاله :
Formation of Sub Grains During Friction Stir Welding of Gas pipes
عنوان به زبان ديگر :
Formation of Sub Grains During Friction Stir Welding of Gas pipes
پديدآورندگان :
Emamikhah Afshin نويسنده دانشگاه يزد , Abbasi Alireza نويسنده
كليدواژه :
Friction stir welding , Gas pipes
عنوان كنفرانس :
مجموعه مقالات بيست و دومين كنفرانس سالانه بين المللي مهندسي مكانيك
چكيده فارسي :
Appropriate selection of Friction Stir Welding
parameters i.e. rotational speed, translational speed,
and downward force as well as suit design of tool will
contribute to formation of a strong weld due to equal
amalgamation of welded materials in the steady-state
conditions. In this experimental study, two gas pipes
were sufficiently welded on a predesigned fixture and
results were concluded subsequently. Scanning
electron microscopy (SEM) an optical microscopy
(OM) were employed as metallurgical tests to evaluate
the grain sizes and morphological characteristics in
transmuted area (welding zone). The feedbacks from
metallurgical tests revealed a equal distribution of
subgrains over the welding area. Also, consequenses
showed a range of grain sizes from micro to sub micro
scale. Furthermore, hardness test as mechanical test
showed more wear strength on the welding zone.
Thus, current investigations indicate by selecting the
suit parameters, friction stir welding will create
substructures on the welding area of pipes.
شماره مدرك كنفرانس :
3817001