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Fatigue Crack Growth, Creep-Fatigue Crack Growth and Creep Crack Growth Behavior of Inconel® 740H at Elevated Temperature.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Fatigue Crack Growth, Creep-Fatigue Crack Growth and Creep Crack Growth Behavior of Inconel® 740H at Elevated Temperature./
作者:	Holliday, Zane J.
面頁冊數:	1 online resource (61 pages)
附註:	Source: Masters Abstracts International, Volume: 84-12.
Contained By:	Masters Abstracts International84-12.
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30420830click for full text (PQDT)
ISBN:	9798379699246

Fatigue Crack Growth, Creep-Fatigue Crack Growth and Creep Crack Growth Behavior of Inconel® 740H at Elevated Temperature.
Holliday, Zane J.

Fatigue Crack Growth, Creep-Fatigue Crack Growth and Creep Crack Growth Behavior of Inconel® 740H at Elevated Temperature. - 1 online resource (61 pages)

Source: Masters Abstracts International, Volume: 84-12.

Thesis (M.S.)--University of Idaho, 2023.

Includes bibliographical references

The purpose of this study is to characterize the fatigue crack growth, creep-fatigue crack growth and creep crack growth of Inconel® 740H at elevated temperature. Tests were performed on solution annealed, heat-treated, compact tension specimens and performed in accordance with ASTM standards. Experimental tests were performed at 750℃ and 800℃. Loading conditions for fatigue crack growth were 15Hz, 0.25 Hz and 1/60 Hz whereas creep-fatigue crack growth conditions included a 60s and 6s hold time. Creep crack growth tests were performed at a constant load. This study characterized crack growth rate as a function of stress intensity, K. Fractography was also performed at various ∆K and K levels. At 750℃, it was found that crack growth rates were similar with the exception of the 1/60 Hz test. For the 60s hold test, fractography revealed more extensive secondary cracking than the 1/60 Hz test, leading to potential crack tip blunting. Exploratory work was performed at 800℃ and allowed for a temperature comparison as well as the evaluation of a creep crack growth test. An increase in temperature showed a change in creep-fatigue crack growth but little change in fatigue crack growth behavior for the material.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379699246Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Fatigue crack growthIndex Terms--Genre/Form:

542853
Electronic books.

Fatigue Crack Growth, Creep-Fatigue Crack Growth and Creep Crack Growth Behavior of Inconel® 740H at Elevated Temperature.
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504 $a Includes bibliographical references
520 $a The purpose of this study is to characterize the fatigue crack growth, creep-fatigue crack growth and creep crack growth of Inconel® 740H at elevated temperature. Tests were performed on solution annealed, heat-treated, compact tension specimens and performed in accordance with ASTM standards. Experimental tests were performed at 750℃ and 800℃. Loading conditions for fatigue crack growth were 15Hz, 0.25 Hz and 1/60 Hz whereas creep-fatigue crack growth conditions included a 60s and 6s hold time. Creep crack growth tests were performed at a constant load. This study characterized crack growth rate as a function of stress intensity, K. Fractography was also performed at various ∆K and K levels. At 750℃, it was found that crack growth rates were similar with the exception of the 1/60 Hz test. For the 60s hold test, fractography revealed more extensive secondary cracking than the 1/60 Hz test, leading to potential crack tip blunting. Exploratory work was performed at 800℃ and allowed for a temperature comparison as well as the evaluation of a creep crack growth test. An increase in temperature showed a change in creep-fatigue crack growth but little change in fatigue crack growth behavior for the material.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 649730
650 4 $a Materials science. $3 543314
650 4 $a Mechanics. $3 525881
653 $a Fatigue crack growth
653 $a Creep crack growth
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653 $a Experimental tests
653 $a Elevated temperature
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773 0 $t Masters Abstracts International $g 84-12.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30420830 $z click for full text (PQDT)