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		<id>https://www.scipedia.com/wd/index.php?action=history&amp;feed=atom&amp;title=Duncan_2006a</id>
		<title>Duncan 2006a - Revision history</title>
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		<updated>2026-04-18T11:36:56Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.scipedia.com/wd/index.php?title=Duncan_2006a&amp;diff=187389&amp;oldid=prev</id>
		<title>Scipediacontent: Scipediacontent moved page Draft Content 235416940 to Duncan 2006a</title>
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				<updated>2021-01-25T17:58:08Z</updated>
		
		<summary type="html">&lt;p&gt;Scipediacontent moved page &lt;a href=&quot;/public/Draft_Content_235416940&quot; class=&quot;mw-redirect&quot; title=&quot;Draft Content 235416940&quot;&gt;Draft Content 235416940&lt;/a&gt; to &lt;a href=&quot;/public/Duncan_2006a&quot; title=&quot;Duncan 2006a&quot;&gt;Duncan 2006a&lt;/a&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan='1' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan='1' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 17:58, 25 January 2021&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan='2' style='text-align: center;' lang='en'&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Scipediacontent</name></author>	</entry>

	<entry>
		<id>https://www.scipedia.com/wd/index.php?title=Duncan_2006a&amp;diff=187388&amp;oldid=prev</id>
		<title>Scipediacontent: Created page with &quot; == Abstract ==  The methods and interim results from a testing program to quantify hydrogen effects on mechanical properties of carbon steel pipeline and pipeline weld materi...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.scipedia.com/wd/index.php?title=Duncan_2006a&amp;diff=187388&amp;oldid=prev"/>
				<updated>2021-01-25T17:58:05Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot; == Abstract ==  The methods and interim results from a testing program to quantify hydrogen effects on mechanical properties of carbon steel pipeline and pipeline weld materi...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&lt;br /&gt;
== Abstract ==&lt;br /&gt;
&lt;br /&gt;
The methods and interim results from a testing program to quantify hydrogen effects on mechanical properties of carbon steel pipeline and pipeline weld materials are provided. The scope is carbon steels commonly used for natural gas pipelines in the United States that are candidates for hydrogen service in the hydrogen economy. The mechanical test results will be applied in future analyses to evaluate service life of the pipelines. The results are also envisioned to be part of the bases for construction codes and structural integrity demonstrations for hydrogen service pipeline and vessels. Tensile properties of one type of steel (A106 Grade B) in base metal, welded and heat affected zone conditions were tested at room temperature in air and high pressure (1500 psig) hydrogen. A general reduction in the materials ability to plastically deform was noted in this material when specimens were tested in 1500 psig hydrogen. Furthermore, the primary mode of fracture was changed from ductile rupture in air to cleavage with secondary tearing in hydrogen. The mechanical test program will continue with tests to quantify the fracture behavior in terms of J-R curves for these materials at air and hydrogen pressure conditions.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Original document ==&lt;br /&gt;
&lt;br /&gt;
The different versions of the original document can be found in:&lt;br /&gt;
&lt;br /&gt;
* [http://dx.doi.org/10.2172/895632 http://dx.doi.org/10.2172/895632]&lt;br /&gt;
&lt;br /&gt;
* [https://digital.library.unt.edu/ark:/67531/metadc880244/m2/1/high_res_d/895632.pdf https://digital.library.unt.edu/ark:/67531/metadc880244/m2/1/high_res_d/895632.pdf]&lt;br /&gt;
&lt;br /&gt;
* [https://core.ac.uk/display/71309840 https://core.ac.uk/display/71309840],&lt;br /&gt;
: [https://digital.library.unt.edu/ark:/67531/metadc880244/m2/1/high_res_d/895632.pdf https://digital.library.unt.edu/ark:/67531/metadc880244/m2/1/high_res_d/895632.pdf],&lt;br /&gt;
: [https://www.osti.gov/servlets/purl/895632 https://www.osti.gov/servlets/purl/895632],&lt;br /&gt;
: [https://digital.library.unt.edu/ark:/67531/metadc880244 https://digital.library.unt.edu/ark:/67531/metadc880244],&lt;br /&gt;
: [https://academic.microsoft.com/#/detail/2267016950 https://academic.microsoft.com/#/detail/2267016950]&lt;/div&gt;</summary>
		<author><name>Scipediacontent</name></author>	</entry>

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