Low Temperature and Grain Size Effects on Static, Cyclic and Threshold Behavior of an HSLA Steel PDF Download
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Author: James P. Lucas
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ISBN:
Category :
Languages : en
Pages : 438
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Author: James P. Lucas
Publisher:
ISBN:
Category :
Languages : en
Pages : 438
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Author: Siyu Wu
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Category :
Languages : en
Pages :
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Stelco, a Canadian steel making company produced a hot rolled coil of a G40.21 50WT High Strength Low Alloy (HSLA) steel. The material needed to meet a demanding Drop Weight Tear Test (DWTT) specification at -35°C. The coils produced using a coiling temperature of 540°C did not meet the DWTT specification with mixed pass/fail results. A second coil produced using a coiling temperature of 500°C met the DWTT specification, but still with mixed results. To investigate this, a two-part study was undertaken. The first part investigated the effect of coiling temperature on the microstructure and CVN impact behavior. It was found that 540°C coiling temperature resulted in a coarser grain size but less initial void/inclusion content. Furthermore, CVN testing showed that the material coiled at 540°C had better impact toughness. The second part investigated the mixed pass/fail results for the DWTT and CVN tests conducted at -35°C for the material coiled at 500°C. The results showed that there were no obvious differences between the pass and failed specimen in terms of microstructure, initial porosity, damage evolution and impact testing behavior, which suggests that the test temperature of -35°C was within the ductile-brittle transition of this material.
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Category : Dissertations, Academic
Languages : en
Pages : 638
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Author:
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Category : Aeronautics
Languages : en
Pages : 1390
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
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Category : Metallurgy
Languages : en
Pages : 972
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Author: K. Sadananda
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Category : Technology & Engineering
Languages : en
Pages : 264
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Author: MR. Krishnadev
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ISBN:
Category : Alloy steels
Languages : en
Pages : 7
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Because of the need for a better understanding of the effect of Arctic low temperature environments on the mechanical behavior of high-strength low-alloy (HSLA) steels, a comparative study has been undertaken to evaluate the effect of low temperature on the mechanical properties of two candidate steels, columbium-molybdenum "acicular ferrite" HSLA steel and high-columbium HSLA steel. The paper presents the data relating to the effect of low temperature on the mechanical properties, namely, dynamic fracture toughness KId properties, through instrumented impact testing of precracked Charpy V-notch samples and cyclic properties of the two steels. It also discusses the results in terms of their significance to material specification, selection, and performance criteria for safe and economical transportation of petroleum resources from the Canadian Arctic.
Author:
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ISBN:
Category : Metallurgy
Languages : en
Pages : 1634
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Author:
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Category : Dissertation abstracts
Languages : en
Pages : 564
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Author:
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ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1116
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