Defect tolerance for castings

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

Heavy section cast GJS 400 nodular iron was studied. In ultrasonic factory inspection rejected and acceptable material blocks were evaluated by further ultrasonic measurements, radiography and fatigue testing. Radiography was capable to recognize porosity, but the sizes of individual pores could not be assessed. The defected area map of factory inspection resembles the C-scan image produced by semi-manual inspection using BAT method. Fatigue tests show a notable difference in fatigue resistance of the acceptable and rejected materials for 50 % failure probability, but the scatter was clearly higher in the acceptable material batch, meaning that reduction of safe fatigue design curve may be much smaller than the difference at 50 % failure probability.
Original languageEnglish
Title of host publicationCompetent Design by Castings: Improvements in a Nordic project
Subtitle of host publicationGJUTDESIGN-2005 final seminar
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages185-203
ISBN (Electronic)951-38-6299-2
ISBN (Print)951-38-6298-4
Publication statusPublished - 2005
MoE publication typeB3 Non-refereed article in conference proceedings
EventCompetent Design by Castings: Improvements in a Nordic project
: GJUTDESIGN-2005 final seminar
- Espoo, Finland
Duration: 13 Jun 200514 Jun 2005

Publication series

NameVTT Symposium
PublisherVTT
Number237
ISSN (Print)0357-9387
ISSN (Electronic)1455-0873

Seminar

SeminarCompetent Design by Castings: Improvements in a Nordic project
CountryFinland
CityEspoo
Period13/06/0514/06/05

Fingerprint

Inspection
Radiography
Fatigue of materials
Defects
Industrial plants
Ultrasonic measurement
Nodular iron
Fatigue testing
Porosity
Ultrasonics
Castings

Cite this

Solin, J. (2005). Defect tolerance for castings. In Competent Design by Castings: Improvements in a Nordic project: GJUTDESIGN-2005 final seminar (pp. 185-203). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 237
Solin, Jussi. / Defect tolerance for castings. Competent Design by Castings: Improvements in a Nordic project: GJUTDESIGN-2005 final seminar. Espoo : VTT Technical Research Centre of Finland, 2005. pp. 185-203 (VTT Symposium; No. 237).
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abstract = "Heavy section cast GJS 400 nodular iron was studied. In ultrasonic factory inspection rejected and acceptable material blocks were evaluated by further ultrasonic measurements, radiography and fatigue testing. Radiography was capable to recognize porosity, but the sizes of individual pores could not be assessed. The defected area map of factory inspection resembles the C-scan image produced by semi-manual inspection using BAT method. Fatigue tests show a notable difference in fatigue resistance of the acceptable and rejected materials for 50 {\%} failure probability, but the scatter was clearly higher in the acceptable material batch, meaning that reduction of safe fatigue design curve may be much smaller than the difference at 50 {\%} failure probability.",
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year = "2005",
language = "English",
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}

Solin, J 2005, Defect tolerance for castings. in Competent Design by Castings: Improvements in a Nordic project: GJUTDESIGN-2005 final seminar. VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 237, pp. 185-203, Competent Design by Castings: Improvements in a Nordic project
, Espoo, Finland, 13/06/05.

Defect tolerance for castings. / Solin, Jussi.

Competent Design by Castings: Improvements in a Nordic project: GJUTDESIGN-2005 final seminar. Espoo : VTT Technical Research Centre of Finland, 2005. p. 185-203 (VTT Symposium; No. 237).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

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AB - Heavy section cast GJS 400 nodular iron was studied. In ultrasonic factory inspection rejected and acceptable material blocks were evaluated by further ultrasonic measurements, radiography and fatigue testing. Radiography was capable to recognize porosity, but the sizes of individual pores could not be assessed. The defected area map of factory inspection resembles the C-scan image produced by semi-manual inspection using BAT method. Fatigue tests show a notable difference in fatigue resistance of the acceptable and rejected materials for 50 % failure probability, but the scatter was clearly higher in the acceptable material batch, meaning that reduction of safe fatigue design curve may be much smaller than the difference at 50 % failure probability.

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Solin J. Defect tolerance for castings. In Competent Design by Castings: Improvements in a Nordic project: GJUTDESIGN-2005 final seminar. Espoo: VTT Technical Research Centre of Finland. 2005. p. 185-203. (VTT Symposium; No. 237).