Ni基超合金の高温における疲労き裂伝ぱ抵抗

Translated title of the contribution: Fatigue Crack Growth Resistance in Nickel-Base Superalloy at Elevated Temperatures

皮籠石 紀雄, 陳 強, 西谷 弘信, 後藤 真宏, 田中 秀穂

Research output: Contribution to journalArticle

Abstract

Rotating bending fatigue tests were carried out for Inconel 718 at room temperature and elevated temperatures of 300°C, 500°C and 600°C to investigate the influence of temperature on the fatigue crack growth resistance. The crack growth rate can be expressed by the small crack growth law, dl/dN=C<SUB>1</SUB>σ<SUP>n</SUP><SUB>a</SUB>l=C<SUB>2</SUB>(σ<SUB>a</SUB>/σ<SUB>B</SUB>)<SUP>n</SUP>l, at all the temperatures, where σ<SUB>B</SUB>, σ<SUB>a</SUB> and l are the tensile strength, the stress amplitude and the crack length, and C<SUB>1</SUB>, C<SUB>2</SUB> and n are constants. Therefore, the resistance to crack growth was evaluated using the small crack growth law. The fatigue crack growth resistance decreased with the increase of temperature.
Original languageJapanese
Pages (from-to)2298-2302
Number of pages5
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume63
Issue number615
DOIs
Publication statusPublished - Nov 25 1997

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Fatigue crack propagation
Nickel
Superalloys
Crack propagation
Temperature
Tensile strength
Fatigue of materials
Cracks

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Ni基超合金の高温における疲労き裂伝ぱ抵抗. / 皮籠石紀雄; 陳強; 西谷弘信; 後藤真宏; 田中秀穂.

In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 63, No. 615, 25.11.1997, p. 2298-2302.

Research output: Contribution to journalArticle

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abstract = "Rotating bending fatigue tests were carried out for Inconel 718 at room temperature and elevated temperatures of 300°C, 500°C and 600°C to investigate the influence of temperature on the fatigue crack growth resistance. The crack growth rate can be expressed by the small crack growth law, dl/dN=C<SUB>1σ<SUP>n<SUB>al=C<SUB>2(σ<SUB>a/σ<SUB>B)<SUP>nl, at all the temperatures, where σ<SUB>B, σ<SUB>a and l are the tensile strength, the stress amplitude and the crack length, and C<SUB>1, C<SUB>2 and n are constants. Therefore, the resistance to crack growth was evaluated using the small crack growth law. The fatigue crack growth resistance decreased with the increase of temperature.",
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AU - 皮籠石, 紀雄

AU - 陳, 強

AU - 西谷, 弘信

AU - 後藤, 真宏

AU - 田中, 秀穂

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N2 - Rotating bending fatigue tests were carried out for Inconel 718 at room temperature and elevated temperatures of 300°C, 500°C and 600°C to investigate the influence of temperature on the fatigue crack growth resistance. The crack growth rate can be expressed by the small crack growth law, dl/dN=C<SUB>1σ<SUP>n<SUB>al=C<SUB>2(σ<SUB>a/σ<SUB>B)<SUP>nl, at all the temperatures, where σ<SUB>B, σ<SUB>a and l are the tensile strength, the stress amplitude and the crack length, and C<SUB>1, C<SUB>2 and n are constants. Therefore, the resistance to crack growth was evaluated using the small crack growth law. The fatigue crack growth resistance decreased with the increase of temperature.

AB - Rotating bending fatigue tests were carried out for Inconel 718 at room temperature and elevated temperatures of 300°C, 500°C and 600°C to investigate the influence of temperature on the fatigue crack growth resistance. The crack growth rate can be expressed by the small crack growth law, dl/dN=C<SUB>1σ<SUP>n<SUB>al=C<SUB>2(σ<SUB>a/σ<SUB>B)<SUP>nl, at all the temperatures, where σ<SUB>B, σ<SUB>a and l are the tensile strength, the stress amplitude and the crack length, and C<SUB>1, C<SUB>2 and n are constants. Therefore, the resistance to crack growth was evaluated using the small crack growth law. The fatigue crack growth resistance decreased with the increase of temperature.

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M3 - 記事

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

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

SN - 0387-5008

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ER -