In addition, they have enough ductility to accommodate the expansion of the pavement due to temperature changes.
As regards both tensile strength and ductility not only the quantity but the distribution of the graphite is of great importance.
Its combination of ductility with strength and hardening power has given it very extended use for the armour of war-vessels.
Rivet steel, which above all needs extreme ductility to endure the distortion of being driven home, and tube steel which must needs weld easily, no matter at what sacrifice of strength, are made as free from carbon, i.
The hardness of the hardened chrome steel resists the burglar's drill, and the ductility of the wrought iron the blows of his sledge.
This may probably arise from hence, that the ductility of Copper has the peculiarity of resisting most of those causes which rob the perfect metals of theirs.
This metal is inferior to Silver in point of gravity; nor is its ductility so great, though it be pretty considerable: but, on the other hand, it exceeds that metal in hardness.
But these compositions have not, when cold, the ductility of Brass prepared with Lapis Calaminaris, because Zinc is seldom pure, or free from a mixture of Lead.
Tin unites easily with all the metals; but it destroys the ductility and malleability of every one of them, Lead excepted.
At each temperature the pliability andductility were tested thus: [180] I am indebted to Dr.
It is desirable that the pliability and ductility be preserved at as low a temperature as possible.
Besides we must assist the ductility of metals with the addition of fire, without which they become brittle: even iron, although the most robust, is brittle like the rest.
I own I am of a quite contrary opinion; because a matter which has neither ductilitynor fusibility, cannot rank in the number of metals, whose essential and common properties are to be ductile and fusible.
A two thousandth part of antimony, bismuth, or lead, destroys the ductility of gold.
Table of the ductility and malleability of Metals.
The spider and the silk-worm exhibit the finest natural exercise of ductilityupon the peculiar viscid secretions from which they spin their threads.
There appears to be therefore a real difference between ductility and malleability; for the metals which draw into the finest wire are not those which afford the thinnest leaves under the hammer or in the rolling press.
Cast iron has, for bridges of simple design, a strong claim to the second place, though its want of ductility is a demerit.
To the absence of ductility and liability to initial stress must be added yet another disadvantage to which cast-iron work is prone--viz.
Is not now ductility to be added to his former idea, and made part of the essence of the species that name ZAHAB stands for?
By its ductility this thread acquires about a fifth of its ordinary length.
Small quantities of iridium do not destroy the ductility of gold, but this is probably because the metal is only disseminated through the mass, and not alloyed, as it falls to the bottom of the crucible in which the gold is fused.
He found it possessed of the ductilityand specific gravity of gold; and full of admiration, he exclaimed that he had never worked before upon gold so perfectly pure.
Zinc is mentioned by him, and likewise bismuth, as substances not truly metallic, but approaching to metals in their properties: for malleability and ductility were considered by him as essential to the metals.
It is not malleable, but in ductilityranks next to gold.
It is well known that glass in its melted state is not in the least degree malleable, but its ductility is next to that of gold, and by steady pressure it can be forced into any shape.
With regard to malleability, it stands next to gold and silver in the list of useful metals; in ductility it occupies the fifth position; and in tenacity one only is superior, viz.
The malleability of nickel is less than that of iron, standing tenth in the list of useful metals; and in ductility it also occupies the tenth position.
Silver ranks next to gold in point ofductility and malleability.
She trained me by these precepts to the utmost ductilityof obedience, and the closest attention to profit.
The greater the proportion of zinc the lighter the colour; but the addition of an extra quantity of zinc reduced the tenacity and ductility of the metal.
This produces what might be termed a "dual" steel, allowing for an outer shell which when hardened would withstand wear, and a soft ductile core to produce ductility and withstand shock.
The ductility of carbon-vanadium steels is therefore increased, likewise the ductility of chrome-vanadium steels.
Nickel influences the strength and ductility of steel by being dissolved directly in the iron or ferrite; in this respect differing from chromium, tungsten and vanadium.
Its ductility and malleability are very remarkable.
The ductility of glass at high temperatures seems to be unlimited, while its flexibility increases in proportion to the fineness to which its threads are drawn.
The purity of this grade of iron gives a homogeneous, soft weld of even texture, great ductilityand exceptionally good machining qualities.
Aluminum bronze, composed of copper, zinc and aluminum has high tensile strength combined with ductility and is used for parts requiring this combination.
That ductility of the brain which causes impressions to be easily formed, being united with extreme heat, produces an agitation which sets all regular application at defiance.
It is singular that the ductility and malleability of the same metal are not always in proportion to each other.
Through all the process there are reheatings and coolings, at carefully specified temperatures, to give temper and then to take it away, to keep the ductility without sacrificing endurance.
The ductility of metals was at last being tested to the full.
Homogeneity, tensile strength, malleability, ductility and freedom from laminations and blisters.
It requires greater skill in working than iron, and has, as bad qualities, brittleness, low ductility and flaws induced by the pressure of gas bubbles in the ingot.
