Bethlehem Steel # 11
by Marcia Lee Jones
Title
Bethlehem Steel # 11
Artist
Marcia Lee Jones
Medium
Photograph - Photography
Description
Although steel had been produced in bloomery furnaces for thousands of years, steel's use expanded extensively after more efficient production methods were devised in the 17th century for blister steel and then crucible steel. With the invention of the Bessemer process in the mid-19th century, a new era of mass-produced steel began. This was followed by Siemens-Martin process and then Gilchrist-Thomas process that refined the quality of steel. With their introductions, mild steel replaced wrought iron.
Steels are alloys of iron and carbon, widely used in construction and other applications because of their high tensile strengths and low costs. Carbon, other elements, and inclusions within iron act as hardening agents that prevent the movement of dislocations that otherwise occur in the crystal lattices of iron atoms.
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July 9th, 2015
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Comments (29)
Kathryn Jones
An excellent image with interesting historical and scientific information! You have just extended my education.
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