Metal powder bed fusion (PBF) additive manufacturing (AM) builds metal parts layer by upon a substrate material. The strength of this interface between the and printed material is important to characterize, especially in applications where retained included finished part. Ensuring that original has adequate properties enables use PBF AM process repair existing structures create new using both c...

The effects of the thickness (t), grain size (d), ratio t/d, and tensile direction on properties were carefully examined using ASTM grade 1 pure titanium having a strong B texture with controlled (0.2–0.4 mm), (20–175 µm), t/d (2.3–19.4). 0.2%-proof stress followed Hall-Petch relationship in each regardless thickness, this indicates that does not depend t/d. On other hand, strength uniform elon...

The aorta of a patient with aortic valve stenosis may be unduly thin, fragile, and liable to dissect irrespective of the presence or absence of atheroma. Indeed, Coleman (1955) stated that aortic dissection in young people was most commonly associated with coarctation or with bicuspid aortic valve. Petch (1952) reported fatal haemopericardium from ruptured dissecting aneurysm in a man of 35 yea...

When a strongly textured hexagonal close packed (HCP) metal is loaded under an orientation causing profuse twinning or detwinning, the stress-strain curve is sigmoidal in shape and inflects at some threshold. Authors have largely attributed the dramatic stress increase in the lower-bound vicinity of the inflection point to a combined effect of a Hall-Petch mechanism correlated to grain refineme...