TEMPER EMBRITTLEMENT AND PINE CONE LIKE FRACTURE SURFACE OF 5. 5% Ni CRYOGENIC STEELS.

Masato Murakami; Koji Shibata; Kotobu Nagai; Toshio Fujita

doi:10.2355/isijinternational1966.23.808

TEMPER EMBRITTLEMENT AND PINE CONE LIKE FRACTURE SURFACE OF 5. 5% Ni CRYOGENIC STEELS.

Masato Murakami, Koji Shibata, Kotobu Nagai, Toshio Fujita

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

Abstract

Pine cone is the surface produced by fracture along P-segregated martensite/austenite interfaces which form at prior austenitic grain boundaries and is caused by reverted austenite at the grain boundaries. Intercritical tempering promotes austenite formation thereby enhances the irregularity of the grain boundary and reduces the fraction of intergranular fracture. The retained austenite at the grain boundaries transforms to martensite during fracture.

Original language	English
Pages (from-to)	808-814
Number of pages	7
Journal	Transactions of the Iron and Steel Institute of Japan
Volume	23
Issue number	10
DOIs	https://doi.org/10.2355/isijinternational1966.23.808
Publication status	Published - 1983
Externally published	Yes

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Engineering(all)

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abstract = "Pine cone is the surface produced by fracture along P-segregated martensite/austenite interfaces which form at prior austenitic grain boundaries and is caused by reverted austenite at the grain boundaries. Intercritical tempering promotes austenite formation thereby enhances the irregularity of the grain boundary and reduces the fraction of intergranular fracture. The retained austenite at the grain boundaries transforms to martensite during fracture.",

author = "Masato Murakami and Koji Shibata and Kotobu Nagai and Toshio Fujita",

year = "1983",

doi = "10.2355/isijinternational1966.23.808",

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AU - Nagai, Kotobu

AU - Fujita, Toshio

PY - 1983

Y1 - 1983

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AB - Pine cone is the surface produced by fracture along P-segregated martensite/austenite interfaces which form at prior austenitic grain boundaries and is caused by reverted austenite at the grain boundaries. Intercritical tempering promotes austenite formation thereby enhances the irregularity of the grain boundary and reduces the fraction of intergranular fracture. The retained austenite at the grain boundaries transforms to martensite during fracture.

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TEMPER EMBRITTLEMENT AND PINE CONE LIKE FRACTURE SURFACE OF 5. 5% Ni CRYOGENIC STEELS.

Abstract

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