Participation of hydrogen in the impact behavior of 304L stainless steel
Charpy V-notched impact test studies on 304L austenitic stainless steel at 293 and 77 K demonstrated that hydrogen charging promoted the formation of wider and shallower microvoids at 293 K, promoted microvoid nucleation at 77 K and reduced the energy absorbed by the material at both temperatures. T...
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Veröffentlicht in: | Engineering fracture mechanics 1993-10, Vol.46 (3), p.455-464 |
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creator | Harvey, D.P. Terrell, J.B. Sudarshan, T.S. Louthan, M.R. |
description | Charpy V-notched impact test studies on 304L austenitic stainless steel at 293 and 77 K demonstrated that hydrogen charging promoted the formation of wider and shallower microvoids at 293 K, promoted microvoid nucleation at 77 K and reduced the energy absorbed by the material at both temperatures. These observations suggest that the role of hydrogen in the impact behavior of this material is to enhance whatever damage mechanisms are operating at a given temperature. Further, the observation that embrittlement exists even at liquid nitrogen temperatures indicates that little or no localized rearrangement of hydrogen during the test is required or that relatively high strain rate effects on hydrogen embrittlement need not necessarily be attributed to enhanced transport of hydrogen atmospheres by mobile dislocations. The data presented in this paper are consistent with a model in which the mechanism of hydrogen embrittlement is affected by the extent of plastic deformation. |
doi_str_mv | 10.1016/0013-7944(93)90237-M |
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These observations suggest that the role of hydrogen in the impact behavior of this material is to enhance whatever damage mechanisms are operating at a given temperature. Further, the observation that embrittlement exists even at liquid nitrogen temperatures indicates that little or no localized rearrangement of hydrogen during the test is required or that relatively high strain rate effects on hydrogen embrittlement need not necessarily be attributed to enhanced transport of hydrogen atmospheres by mobile dislocations. The data presented in this paper are consistent with a model in which the mechanism of hydrogen embrittlement is affected by the extent of plastic deformation.</description><identifier>ISSN: 0013-7944</identifier><identifier>EISSN: 1873-7315</identifier><identifier>DOI: 10.1016/0013-7944(93)90237-M</identifier><identifier>CODEN: EFMEAH</identifier><language>eng</language><publisher>Tarrytown, NY: Elsevier Ltd</publisher><subject>Applied sciences ; Exact sciences and technology ; Fractures ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. 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These observations suggest that the role of hydrogen in the impact behavior of this material is to enhance whatever damage mechanisms are operating at a given temperature. Further, the observation that embrittlement exists even at liquid nitrogen temperatures indicates that little or no localized rearrangement of hydrogen during the test is required or that relatively high strain rate effects on hydrogen embrittlement need not necessarily be attributed to enhanced transport of hydrogen atmospheres by mobile dislocations. The data presented in this paper are consistent with a model in which the mechanism of hydrogen embrittlement is affected by the extent of plastic deformation.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Fractures</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. 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Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Harvey, D.P.</creatorcontrib><creatorcontrib>Terrell, J.B.</creatorcontrib><creatorcontrib>Sudarshan, T.S.</creatorcontrib><creatorcontrib>Louthan, M.R.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Engineering fracture mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Harvey, D.P.</au><au>Terrell, J.B.</au><au>Sudarshan, T.S.</au><au>Louthan, M.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Participation of hydrogen in the impact behavior of 304L stainless steel</atitle><jtitle>Engineering fracture mechanics</jtitle><date>1993-10-01</date><risdate>1993</risdate><volume>46</volume><issue>3</issue><spage>455</spage><epage>464</epage><pages>455-464</pages><issn>0013-7944</issn><eissn>1873-7315</eissn><coden>EFMEAH</coden><abstract>Charpy V-notched impact test studies on 304L austenitic stainless steel at 293 and 77 K demonstrated that hydrogen charging promoted the formation of wider and shallower microvoids at 293 K, promoted microvoid nucleation at 77 K and reduced the energy absorbed by the material at both temperatures. These observations suggest that the role of hydrogen in the impact behavior of this material is to enhance whatever damage mechanisms are operating at a given temperature. Further, the observation that embrittlement exists even at liquid nitrogen temperatures indicates that little or no localized rearrangement of hydrogen during the test is required or that relatively high strain rate effects on hydrogen embrittlement need not necessarily be attributed to enhanced transport of hydrogen atmospheres by mobile dislocations. The data presented in this paper are consistent with a model in which the mechanism of hydrogen embrittlement is affected by the extent of plastic deformation.</abstract><cop>Tarrytown, NY</cop><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/0013-7944(93)90237-M</doi><tpages>10</tpages></addata></record> |
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subjects | Applied sciences Exact sciences and technology Fractures Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy |
title | Participation of hydrogen in the impact behavior of 304L stainless steel |
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