Note on standardization of Implant test

Risto Karppi, Jouko Ruusila, Kunihiko Satoh, Masao Toyoda, Karri Vartiainen

Research output: Book/ReportReport

Abstract

Four types of Implant test specimens were used to study the hydrogen induced cracking of steel weldments. Two types of the specimens had a shallow notch with a depth of 0.5 mm but different diameters, one type had a 2 mm deep notch and one type a helical notch with M6-threads. The specimen with the deep notch had many advantages over specimens having the helical or shallow notch. The advances are mainly seen in "mild" tests in which hydrogen cracking may occur only at stress levels considerably above the yield stress of the parent metal. The results with the deep notch specimen can, therefore, be applied to real joints welded under high level of restraint.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages30
ISBN (Print)951-38-1795-4
Publication statusPublished - 1983
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Number189
ISSN0358-5077

Fingerprint

Standardization
Hydrogen
Yield stress
Welds
Steel
Metals

Keywords

  • Implant tests
  • welded joints
  • weldability
  • weld defects
  • cracking
  • standardization

Cite this

Karppi, R., Ruusila, J., Satoh, K., Toyoda, M., & Vartiainen, K. (1983). Note on standardization of Implant test. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 189
Karppi, Risto ; Ruusila, Jouko ; Satoh, Kunihiko ; Toyoda, Masao ; Vartiainen, Karri. / Note on standardization of Implant test. Espoo : VTT Technical Research Centre of Finland, 1983. 30 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 189).
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Karppi, R, Ruusila, J, Satoh, K, Toyoda, M & Vartiainen, K 1983, Note on standardization of Implant test. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 189, VTT Technical Research Centre of Finland, Espoo.

Note on standardization of Implant test. / Karppi, Risto; Ruusila, Jouko; Satoh, Kunihiko; Toyoda, Masao; Vartiainen, Karri.

Espoo : VTT Technical Research Centre of Finland, 1983. 30 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 189).

Research output: Book/ReportReport

TY - BOOK

T1 - Note on standardization of Implant test

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AU - Ruusila, Jouko

AU - Satoh, Kunihiko

AU - Toyoda, Masao

AU - Vartiainen, Karri

PY - 1983

Y1 - 1983

N2 - Four types of Implant test specimens were used to study the hydrogen induced cracking of steel weldments. Two types of the specimens had a shallow notch with a depth of 0.5 mm but different diameters, one type had a 2 mm deep notch and one type a helical notch with M6-threads. The specimen with the deep notch had many advantages over specimens having the helical or shallow notch. The advances are mainly seen in "mild" tests in which hydrogen cracking may occur only at stress levels considerably above the yield stress of the parent metal. The results with the deep notch specimen can, therefore, be applied to real joints welded under high level of restraint.

AB - Four types of Implant test specimens were used to study the hydrogen induced cracking of steel weldments. Two types of the specimens had a shallow notch with a depth of 0.5 mm but different diameters, one type had a 2 mm deep notch and one type a helical notch with M6-threads. The specimen with the deep notch had many advantages over specimens having the helical or shallow notch. The advances are mainly seen in "mild" tests in which hydrogen cracking may occur only at stress levels considerably above the yield stress of the parent metal. The results with the deep notch specimen can, therefore, be applied to real joints welded under high level of restraint.

KW - Implant tests

KW - welded joints

KW - weldability

KW - weld defects

KW - cracking

KW - standardization

M3 - Report

SN - 951-38-1795-4

T3 - Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports

BT - Note on standardization of Implant test

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Karppi R, Ruusila J, Satoh K, Toyoda M, Vartiainen K. Note on standardization of Implant test. Espoo: VTT Technical Research Centre of Finland, 1983. 30 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 189).