US1675708A - Alloy - Google Patents

Description

Patented July 3, 19 28 1 UNITED STATES HOAX VICTOR HYBINETKFE, OI WILMINGTON, DELAWARE.

ALLOY.

10 Drawing. Application med September 23, 1922, Seriatmi. 589,996. Reneweq Iovember 17, 1927.

This invention relates to improved alloys containing a preponderating amount of aluminum, together with small amounts of nickel and other metals, and with the nickel in preponderating amount as compared with the other metals.

In myprior application Serial No. 587,583, filed September 11, 1922, I have described alloys of alluminum' and nickel which possess important advantages as compared with, aluminum itself. According to the present invention, I make the alloys with the addition of other metals to the aluminum .for use for cooking utensils. In making" the new alloys, therefore, I add other metals to the aluminum and nickel without adding copper.

The new alloys can be produced in themanner described in my said prior application, by adding the alloying metals to the molten aluminum. My referred composition of the alloy is as f0 lows: Nickel from about 3 to about 6%; iron from about 0.5% to about 2%; and chromium, tungsten and molybdenum, either separatel or together, amounting to about 0.2% to a out 1%; and with the remainder aluminum. Small amounts of other metals or elements may also be present which do notinterfere with the desired valuable properties of the alloys; for example, manganese, magnesium, silicon, etc. may be present in small amount. The presence of copper should be avoided since it is detrimental in the alloys of aluminum with'metals of the iron group but a small. amount of copper may be substantially harmless. I

The new alloys accordingly are made up of a preponderating amount of aluminum,

while the nickel is also in preponderating amount as compared with the other metals. These other metals include 'metals of the iron and chromium groups, and copper being excluded from the alloy. I believe that, I am the first to discover the detrimentaleifect of co per in alloys of aluminum with metals 0 the iron group.

. The new alloys, as compared with metallic aluminum, have a strength and elastic limit, as well as a greatly increased alloys are capable of being rolled and worked into sheets and other shapes. The

new alloys and articles made therefrom have a characteristic lustre and color difi'erent from that of any known aluminum alloy, 66

being more like nickel than aluminum in appearance. J

Sheets of the new alloy can be used in making cooking utensils and other articles.

The sheets are harder than aluminum but 70 nevertheless ductile while the drawing or working operation by which the sheets are produced and to which they are subjected tendsto eliminate imperfections in the surface of the sheets instead of magnifying 76 them. The sheets of the alloy are suffi- -ciently ductile to permit the forming of articles by .various shapes by draw ng, stamping and other mechamcal processes of working. The new alloy can be used for 80 purposes where metallic aluminum is unsuitable or objectionable because of its softness and for purposes where nickel plated brass is now used. ,For example, the new alloy can be used for making automobile 86 parts such as the handles of-doors, the caps ofthe hubs of wheels, etc.

I claim:

1'. An alloy of aluminum with metals of.

the iron group in which the aluminum forms 90 upwards of about 90% of the alloy, said alloy containing nickel and iron in small but substantial amount, and said alloy containing at least one of the following metals, namely, chromium, tungsten and molybdem5 num, in substantial amount less than 1%, said alloy being practically free from copper. w

2. An alloy containing a reponderating amount of aluminum, from ab 6% of nickel, and from about 0.5% to about 2% of iron, said alloy being practically free from copper.

{3. An alloy containing a preponderating amount of aluminum; from about 3 to about 6% of nickel, from about 0.5 to 2% of iron, and from 0.2 to 1% of at least one of the following metals, namely, chromium, tungsten and molybdenum.

In testimony whereof I affix my signature.

uoAK VICTOR HYBINETTE.

reatly increased tensile elongation. The new 00 out 3 to about 1