Creep in steels under load at high temperatures

• Publisher: Elsevier Science
• Year: 1932
• Tongue: English
• Weight: 111 KB
• Volume: 214
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(32)90790-x

✦ Synopsis

of the properties and behavior of metals at high temperatures. Modern power plants, petroleum refineries, chemical engineering plants, and many other present day industries must rely in a large degree upon the dependable service of metals at relatively high temperatures.

The problem of the research and testing laboratory is to secure sufficiently dependable data on the strength of metals at high temperatures for the use of the designing engineer. This problem is by no means a simple one, very largely because the strength of metals at elevated temperatures involves a time factor. That is, a metal which appears to be sufficiently strong and rigid when tested to failure by rapid loading at some elevated temperature, may fail at a much lower load if allowed to maintain this load over a longer period of time.

Nevertheless, rapid loading or short-time tests of metals at high temperatures, are of value in securing a general idea of the relative behavior of metals of different composition at those temperatures.

Research Paper No. 474 in the September number of the Bureau of Standards Journal of Research reports the results of short-time tensile tests at high temperature for a medium manganese carbon steel, a series of cast nickel-chromium-iron alloys containing 35 per cent. chromium and Io to 45 per cent. nickel, a series of tungsten-chromium-vanadium steels, and a series of molybdenum-chromium-vanadium steels.

CREEP IN STEELS UNDER LOAD AT HIGH TEMPERATURES.