This historic book may have numerous typos and missing text.
Purchasers can download a free scanned copy of the original book
(without typos) from the publisher. Not indexed. Not illustrated.
1901 Excerpt: ...aluminum in finished steel has not proved
beneficial. It adds nothing to the strength and destroys the
toughness to a considerable degree. Arsenic and Iron.--Arsenic
unites readily with iron in all proportions and behaves toward iron
much as sulphur does. It exists in steel oftentimes in very small
quantities, so small as to be negligible. Arsenic has been found
very often in ancient cannon balls, the iron being very hard and
brittle. One of these contained a? much as 16'20% As. It lowers the
saturation point for carbon in cast iron and gives iron a white
fracture. When it enters forged iron or steel it makes it extremely
red-short and in large proportions cold-short as well. Carbon and
Iron.--The effect of the element carbon alone when alloyed with
iron it is practically impossible to give, because it has been
impossible to maka Annates dea Slinet. Vol. XIV., 1898. an alloy
with carbon as absolutely the only addition. With small amounts of
several other elements present it cannot be claimed that the
influence of carbon alone is known. Small amounts of the ordinary
elements (even two or three hundredths of a per cent.) in the
presence of carbon exert very great influences. Nevertheless it is
certain that carbon alloyed with iron (commercial) strengthens it
in its normal annealed condition and causes it to become hard after
being heated and suddenly cooled. The amount of carbon that pure
iron will absorb before saturation is somewhat in dispute, 4-8% is
probably the saturation point. The addition of 5% has been
attempted several times, but has failed. Some Nova Scotia iron
containing titanium and free from silicon was found to contain
4-65% and seemed to be nearly pure carbide. As the percentage of
silicon increases in iron the amount of carbon that will be ...
|Country of origin:
||246 x 189 x 22mm (L x W x T)
||Paperback - Trade
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