Effect of load variation on the transition of crack path in delayed failure of 12Cr steel

Yoshiyuki Kondo; Masanobu Kubota; Tomohiro Nagasue

doi:10.1299/kikaia.74.1249

Effect of load variation on the transition of crack path in delayed failure of 12Cr steel

Yoshiyuki Kondo, Masanobu Kubota, Tomohiro Nagasue

Research output: Contribution to journal › Article › peer-review

Abstract

The crack path of 12Cr martennltlc stainless steel tempered at low temperature is intergranular in the case of delayed failure and transgranular in the case of corrosion fatigue. The effect of varying load on the transition of crack path In delayed failure was examined. Delayed failure tent was done in pure water under triangularly varying load. The crack path was dependent on load frequency. Higher frequency resulted in transgranular crack and lower frequency resulted in intergranular crack. There was a threshold frequency below which intergranular crack could appear. An insertion of a few cycles of rapid loading into the low frequency loading which usually resulted in intergranular crack caused the transition into a transgranular crack.

Original language	English
Pages (from-to)	1249-1255
Number of pages	7
Journal	Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	74
Issue number	9
DOIs	https://doi.org/10.1299/kikaia.74.1249
Publication status	Published - Sep 2008

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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title = "Effect of load variation on the transition of crack path in delayed failure of 12Cr steel",

abstract = "The crack path of 12Cr martennltlc stainless steel tempered at low temperature is intergranular in the case of delayed failure and transgranular in the case of corrosion fatigue. The effect of varying load on the transition of crack path In delayed failure was examined. Delayed failure tent was done in pure water under triangularly varying load. The crack path was dependent on load frequency. Higher frequency resulted in transgranular crack and lower frequency resulted in intergranular crack. There was a threshold frequency below which intergranular crack could appear. An insertion of a few cycles of rapid loading into the low frequency loading which usually resulted in intergranular crack caused the transition into a transgranular crack.",

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N2 - The crack path of 12Cr martennltlc stainless steel tempered at low temperature is intergranular in the case of delayed failure and transgranular in the case of corrosion fatigue. The effect of varying load on the transition of crack path In delayed failure was examined. Delayed failure tent was done in pure water under triangularly varying load. The crack path was dependent on load frequency. Higher frequency resulted in transgranular crack and lower frequency resulted in intergranular crack. There was a threshold frequency below which intergranular crack could appear. An insertion of a few cycles of rapid loading into the low frequency loading which usually resulted in intergranular crack caused the transition into a transgranular crack.

AB - The crack path of 12Cr martennltlc stainless steel tempered at low temperature is intergranular in the case of delayed failure and transgranular in the case of corrosion fatigue. The effect of varying load on the transition of crack path In delayed failure was examined. Delayed failure tent was done in pure water under triangularly varying load. The crack path was dependent on load frequency. Higher frequency resulted in transgranular crack and lower frequency resulted in intergranular crack. There was a threshold frequency below which intergranular crack could appear. An insertion of a few cycles of rapid loading into the low frequency loading which usually resulted in intergranular crack caused the transition into a transgranular crack.

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JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

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Effect of load variation on the transition of crack path in delayed failure of 12Cr steel

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