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EFFECTS OF AGING ON CRYOGENIC MECHANICAL PROPERTIES OF LOW CARBON AUSTENITIC STAINLESS STEELS.

[In Japanese. / En japonais.]

Author(s) : SHIMADA M., OGAWA R., HORIUCHI T.

Type of article: Article

Summary

MECHANICAL PROPERTIES OF SUS 304L AND 316L WERE INVESTIGATED AT 4 K. CHROMIUM RICH CARBIDES, M23 C6 , PRECIPITATED AT GRAIN BOUNDARIES AND CHROMIUM DEPLETED ZONES WERE FORMED DURING AGING THOUGH BOTH STEELS HAD LOW CONTENT OF CARBON. 4 K TENSILE PROPERTIES, NOTCH STRENGTH, CHARPY ABSORBED ENERGY AND FRACTURE TOUGHNESS OF AGED STEELS WERE ALL INFERIOR TO THOSE OF SOLUTIONED ONES. TENSILE PROPERTIES SHOWED THE SMALLEST DEGRADATION WHILE FRACTURE TOUGHNESS SHOWED THE LARGEST. THE GRAIN BOUNDARY PRECIPITATION RESULTS IN DEGRADATION OF 4 K MECHANICAL PROPERTIES. THE DEGREE OF DEGRADATION CORRESPONDS TO AN EXTENT OF TRI-AXIALITY OF STRESS WHICH CONSTRAINED PLASTIC DEFORMATION.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1988-1740
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 22 - n. 4
  • Publication date: 1987
  • Document available for consultation in the library of the IIR headquarters only.

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