Published May 1977 | Version v1
Report Open

The characteristics creep fracture of austenitic stainless steels

Creators

  • 1. Rio de Janeiro Univ. (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia
  • 2. Faculdade Tecnico Educacional Souza Marques, Rio de Janeiro (Brazil)

Description

The characteristics of fracture on creep of two AISI type 316 austenitic stainless steels tested at constant load from 600 to 8000C were studied by scanning electron microscopy. The morphological aspects of the fracture were analysed and correllated to the ductility level attained in creep. A marked change from intergranular to transgranular type of fracture was observed in going from 600 to 8000C. At 8000C on the other hand, the condition for crack nucleation at sigma phase as well as the special conditions of oxidation, are apparently responsible for that same change with the applied stress. (Author)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (Portuguese)

Estudou-se, por microscopia eletronica de varredura as caracteristicas da fratura em fluencia de dois acos inoxidaveis austeniticos AISI 316, ensaiados a carga constante entre 600 e 8000C. Foram analisados os aspectos morfologicos da fratura e correlacionados com os niveis de dutilidade atingidos em fluencia. Constatou-se uma sensivel mudanca de mecanismos de fratura intergranular para transgranular variando-se a temperatura de 600 para 8000C. Por outro lado a 8000C condicoes de nucleacao de trincas em fases sigma bem como consicoes especiais de oxidacao, aparentemente causam esta mesma mudanca com a tensao aplicada. (Autor)

Files

12624407.pdf

Files (440.6 kB)

Name Size Download all
md5:bb7ba1a6cf8b193f89b91cbc7c00dc91
440.6 kB Preview Download

Additional details

Additional titles

Original title (Portuguese)
Caracterristicas da fratura dos acos inoxidaveis austeniticos em fluencia

Publishing Information

Imprint Pagination
16 p.
Report number
COPPE-TP--14/77

Conference

Title
32. Annual Congress of the Brazilian Association of Metals.
Dates
Jul 1977.
Place
Sao Paulo, Brazil.

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
12624407
Subject category
S36: MATERIALS SCIENCE; S42: ENGINEERING;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CRACKS; CREEP; DUCTILITY; ELECTRON MICROSCOPY; FRACTURE PROPERTIES; HIGH TEMPERATURE; STAINLESS STEEL-316; VERY HIGH TEMPERATURE
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; HEAT RESISTING ALLOYS; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; MICROSCOPY; MOLYBDENUM ALLOYS; NICKEL ALLOYS; STAINLESS STEELS; STEELS; TENSILE PROPERTIES; TRANSITION ELEMENT ALLOYS