Accession Number : ADA116559

Title :   Carburized High Temperature Steels.

Descriptive Note : Final rept. 28 Feb-28 Dec 81,

Corporate Author : CLIMAX MOLYBDENUM CO OF MICHIGAN ANN ARBOR

Personal Author(s) : Diesburg,D E

PDF Url : ADA116559

Report Date : Apr 1982

Pagination or Media Count : 44

Abstract : A detailed fracture toughness evaluation before and after a 1000-hour treatment at 315 C (600 F) of candidate steels for use at elevated temperatures in the carburized condition showed that CBS1000 offered the best combination of toughness and retention of hardness at elevated temperature. The toughness of X2(M) and X-53 decreased by about 50% during the 1000-hour treatment while that of CBS1000 changed very little. A separate study comparing six experimental steels concluded that a composition similar to that of CBS1000 had the highest impact fracture strength, even higher than that of SAE 9310. (Author)

Descriptors :   *Steel, *Carburizing, *Fracture(Mechanics), High temperature, Residual stress, Impact strength, Toughness, Alloys, Carbon, Austenite, Martensite, Heat treatment, Chemical analysis, Charpy impact tests, Gears, Helicopters

Subject Categories : Properties of Metals and Alloys
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE