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2. Oxide jacking - Wikipedia

   en.wikipedia.org/wiki/Oxide_jacking

   Oxide jacking has caused concrete spalling on walls of the Herbst Pavilion at Fort Mason Center in San Francisco. The expansive force of rusting, which may be called oxide jacking or rust burst, is a phenomenon that can cause damage to structures made of stone, masonry, concrete or ceramics, and reinforced with metal components.

3. Filler metal - Wikipedia

   en.wikipedia.org/wiki/Filler_metal

   Many gas welding processes, such as lead burning, are typically autogenous and a separate wire filler rod of the same metal is only added if there is a gap to fill. Some metals, such as lead or Birmabright aluminium alloy, use offcut strips of the same metal as filler. Steels are usually welded with a filler alloy made specially for the purpose.

4. Corrosion - Wikipedia

   en.wikipedia.org/wiki/Corrosion

   Often, it is possible to chemically remove the products of corrosion. For example, phosphoric acid in the form of naval jelly is often applied to ferrous tools or surfaces to remove rust. Corrosion removal should not be confused with electropolishing, which removes some layers of the underlying metal to make a smooth surface. For example ...

5. Countersink - Wikipedia

   en.wikipedia.org/wiki/Countersink

   One component is a rod that is inserted into the existing hole in the workpieces; the other component is the cutter, which is attached to the rod, or extends out of it, after it is in position. [3] This is comparable to other types of "back-" machining, such as back-spotfacing, back-boring, back-counterboring, back-milling, and back-deburring.

6. Brazing - Wikipedia

   en.wikipedia.org/wiki/Brazing

   Braze welding is the use of a bronze or brass filler rod coated with flux to join steel workpieces. The equipment needed for braze welding is basically identical to the equipment used in brazing. Since braze welding usually requires more heat than brazing, acetylene or methylacetylene-propadiene gas fuel is commonly used. The name comes from ...

7. Conservation and restoration of iron and steel objects

   en.wikipedia.org/wiki/Conservation_and...

   It has withstood corrosion for the last 1600 years. Iron, steel, and ferrous metals constitute a large portion of collections in museums. The conservation and restoration of iron and steel objects is an activity dedicated to the preservation and protection of objects of historical and personal value made from iron or steel. When applied to ...

8. Monster sinkhole opens along major NJ highway, leading to ...

   www.aol.com/monster-sinkhole-opens-along-major...

   The sinkhole — which appeared large enough to swallow several cars hole — opened on the side of Interstate 80 in Wharton sometime around 7:45 a.m. Monster sinkhole opens along major NJ highway ...

9. Galvanic anode - Wikipedia

   en.wikipedia.org/wiki/Galvanic_anode

   In brief, corrosion is a chemical reaction occurring by an electrochemical mechanism (a redox reaction). [1] During corrosion of iron or steel there are two reactions, oxidation (equation 1), where electrons leave the metal (and the metal dissolves, i.e. actual loss of metal results) and reduction, where the electrons are used to convert oxygen and water to hydroxide ions (equation 2): [2]