EFFECT OF COOLING RATE DURING .. CENTRIFUGAL CASTING ON THE CREEP RUPTURE STRENGTH OF 13% Cr STEEL | ||||
| ERJ. Engineering Research Journal | ||||
| Article 10, Volume 24, Issue 2, April 2001, Page 189-198 PDF (260.73 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2001.71029 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Mohamed o. ALNAIS | ||||
| College of Technology at Hail, KSA | ||||
| Abstract | ||||
| It is well known that 13% Cr steel is one of the most economic stainless steels. It is, however, inferior to austenitic stainless steels in creep rupture strength above 600' C. Therefore, an attempt has been made to imprive the creep rupture, strength of 13% Cr steel. This work is principally concerned with the investigation of the influence of the cooling rate during centrifugal casting on the creep rupture strength of 13% Cr steel. The results obtained are summarized as follows: - The creep strength of 13% Cr steel is improved by increasing cooling rate during centrifugal casting. - The higher cooling rate promotes: large sizes of columnar structures and fine dispersion of precipitates. These are shown to have a beneficial effect on the creep strength of 13% steel. | ||||
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