Analysis of the In Situ Crack Evolution Behavior in a Solid Solution Mg-13Gd-5Y-3Zn-0.3Zr Alloy
The low plasticity of high strength Mg-Gd-Y alloy has become the main obstacle to its application in engineering. In this paper, the origin, propagation and fracture processes of cracks of a solution of treated Mg-13Gd-5Y-3Zn-0.3Zr alloy were observed and studied with scanning electron microscopy (S...
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| description | The low plasticity of high strength Mg-Gd-Y alloy has become the main obstacle to its application in engineering. In this paper, the origin, propagation and fracture processes of cracks of a solution of treated Mg-13Gd-5Y-3Zn-0.3Zr alloy were observed and studied with scanning electron microscopy (SEM) in an in situ tensile test to provide theoretical references for the development of a new high-performance Mg-Gd-Y alloy. The results showed that there was still some bulk long period stacking order (LPSO) phase remaining in solid solution Mg-13Gd-5Y-3Zn-0.3Zr alloy. Most importantly, it was found that the locations of micro-cracks vary with the different solution treatment processes, mainly including the following three types. (1) At 480 x 10 h and 510 degrees C x 10 h, much bulk LPSO phase with higher elastic modulus remains in the alloy, which can lead to micro-cracks in the LPSO phase due to stress concentration. (2) At 510 degrees C x 13 h and 510 degrees C x 16 h, the phase structure of bulk LPSO changes, and the stress concentration easily appears at the LPSO/alpha-Mg interface, which leads to micro-cracks at the interface. (3) At 510 degrees C x 19 h and 510 degrees C x 22 h, the grain size increases, and the stress concentration is obvious at the grain boundary of coarse grains, which leads to the formation of micro-cracks. |
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In this paper, the origin, propagation and fracture processes of cracks of a solution of treated Mg-13Gd-5Y-3Zn-0.3Zr alloy were observed and studied with scanning electron microscopy (SEM) in an in situ tensile test to provide theoretical references for the development of a new high-performance Mg-Gd-Y alloy. The results showed that there was still some bulk long period stacking order (LPSO) phase remaining in solid solution Mg-13Gd-5Y-3Zn-0.3Zr alloy. Most importantly, it was found that the locations of micro-cracks vary with the different solution treatment processes, mainly including the following three types. (1) At 480 x 10 h and 510 degrees C x 10 h, much bulk LPSO phase with higher elastic modulus remains in the alloy, which can lead to micro-cracks in the LPSO phase due to stress concentration. (2) At 510 degrees C x 13 h and 510 degrees C x 16 h, the phase structure of bulk LPSO changes, and the stress concentration easily appears at the LPSO/alpha-Mg interface, which leads to micro-cracks at the interface. (3) At 510 degrees C x 19 h and 510 degrees C x 22 h, the grain size increases, and the stress concentration is obvious at the grain boundary of coarse grains, which leads to the formation of micro-cracks.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma14010036</identifier><identifier>PMID: 33374133</identifier><language>eng</language><publisher>BASEL: Mdpi</publisher><subject>Bulk modulus ; Chemistry ; Chemistry, Physical ; Crack initiation ; Crack propagation ; Gadolinium ; Grain boundaries ; Grain size ; Heat resistance ; High strength alloys ; High temperature ; Magnesium alloys ; Magnesium base alloys ; Materials Science ; Materials Science, Multidisciplinary ; Mechanical properties ; Metallurgy & Metallurgical Engineering ; Microcracks ; Modulus of elasticity ; Physical Sciences ; Physics ; Physics, Applied ; Physics, Condensed Matter ; R&D ; Research & development ; Science & Technology ; Solid phases ; Solid solutions ; Solution heat treatment ; Stress concentration ; Technology ; Tensile tests</subject><ispartof>Materials, 2020-12, Vol.14 (1), p.36, Article 36</ispartof><rights>2021. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). 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In this paper, the origin, propagation and fracture processes of cracks of a solution of treated Mg-13Gd-5Y-3Zn-0.3Zr alloy were observed and studied with scanning electron microscopy (SEM) in an in situ tensile test to provide theoretical references for the development of a new high-performance Mg-Gd-Y alloy. The results showed that there was still some bulk long period stacking order (LPSO) phase remaining in solid solution Mg-13Gd-5Y-3Zn-0.3Zr alloy. Most importantly, it was found that the locations of micro-cracks vary with the different solution treatment processes, mainly including the following three types. (1) At 480 x 10 h and 510 degrees C x 10 h, much bulk LPSO phase with higher elastic modulus remains in the alloy, which can lead to micro-cracks in the LPSO phase due to stress concentration. (2) At 510 degrees C x 13 h and 510 degrees C x 16 h, the phase structure of bulk LPSO changes, and the stress concentration easily appears at the LPSO/alpha-Mg interface, which leads to micro-cracks at the interface. (3) At 510 degrees C x 19 h and 510 degrees C x 22 h, the grain size increases, and the stress concentration is obvious at the grain boundary of coarse grains, which leads to the formation of micro-cracks.</description><subject>Bulk modulus</subject><subject>Chemistry</subject><subject>Chemistry, Physical</subject><subject>Crack initiation</subject><subject>Crack propagation</subject><subject>Gadolinium</subject><subject>Grain boundaries</subject><subject>Grain size</subject><subject>Heat resistance</subject><subject>High strength alloys</subject><subject>High temperature</subject><subject>Magnesium alloys</subject><subject>Magnesium base alloys</subject><subject>Materials Science</subject><subject>Materials Science, Multidisciplinary</subject><subject>Mechanical properties</subject><subject>Metallurgy & Metallurgical Engineering</subject><subject>Microcracks</subject><subject>Modulus of elasticity</subject><subject>Physical Sciences</subject><subject>Physics</subject><subject>Physics, Applied</subject><subject>Physics, Condensed Matter</subject><subject>R&D</subject><subject>Research & development</subject><subject>Science & Technology</subject><subject>Solid phases</subject><subject>Solid solutions</subject><subject>Solution heat treatment</subject><subject>Stress concentration</subject><subject>Technology</subject><subject>Tensile tests</subject><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqNkUFv1DAQhS1ERaulF34AssQFgUJtT-IkF6QlKqVSKw6FA71Yju10Xbx2ayeL9t_jVcq2cGIOtqX55vlpHkKvKPkA0JKTtaQloYQAf4aOaNvygrZl-fzJ-xAdp3RLcgHQhrUv0CEA1CUFOEJi6aXbJptwGPC4Mvjc4ys7TriLUv3Ep5vgptEGjz-ZldzYELH1WOKr4KzenXPz8qagcKaL6kcB177I1q4jXjoXti_RwSBdMscP9wJ9_3z6rftSXHw9O--WF4UCXo1FryrdNy0A0Uz2taoZI7SsmJSlYgCGaw2SlFJXldKyV4opzkzTqIFLrgcOC_Rx1r2b-rXRyvgxSifuol3LuBVBWvF3x9uVuAkbUddtxfPPC_T2QSCG-8mkUaxtUsY56U2YkmBlDU3b1k2Z0Tf_oLdhinmPM1XVebc0U-9mSsWQUjTD3gwlYhedeIwuw6-f2t-jf4LKQDMDv0wfhqSs8crssZwtJ5yyrJqLdnaUu1y6MPkxj77__1H4DdDHsq4</recordid><startdate>20201224</startdate><enddate>20201224</enddate><creator>Yang, Yaqin</creator><creator>Mu, Chongli</creator><creator>Han, Zhongjian</creator><creator>Xu, Jian</creator><creator>Li, Baocheng</creator><general>Mdpi</general><general>MDPI AG</general><general>MDPI</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20201224</creationdate><title>Analysis of the In Situ Crack Evolution Behavior in a Solid Solution Mg-13Gd-5Y-3Zn-0.3Zr Alloy</title><author>Yang, Yaqin ; Mu, Chongli ; Han, Zhongjian ; Xu, Jian ; Li, Baocheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-bc5db89330d2ab7c72201452aa4c233e6dd3a04ad55cdabcc2c62e88cf6a6df63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Bulk modulus</topic><topic>Chemistry</topic><topic>Chemistry, Physical</topic><topic>Crack initiation</topic><topic>Crack propagation</topic><topic>Gadolinium</topic><topic>Grain boundaries</topic><topic>Grain size</topic><topic>Heat resistance</topic><topic>High strength alloys</topic><topic>High temperature</topic><topic>Magnesium alloys</topic><topic>Magnesium base alloys</topic><topic>Materials Science</topic><topic>Materials Science, Multidisciplinary</topic><topic>Mechanical properties</topic><topic>Metallurgy & Metallurgical Engineering</topic><topic>Microcracks</topic><topic>Modulus of elasticity</topic><topic>Physical Sciences</topic><topic>Physics</topic><topic>Physics, Applied</topic><topic>Physics, Condensed Matter</topic><topic>R&D</topic><topic>Research & development</topic><topic>Science & Technology</topic><topic>Solid phases</topic><topic>Solid solutions</topic><topic>Solution heat treatment</topic><topic>Stress concentration</topic><topic>Technology</topic><topic>Tensile tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Yaqin</creatorcontrib><creatorcontrib>Mu, Chongli</creatorcontrib><creatorcontrib>Han, Zhongjian</creatorcontrib><creatorcontrib>Xu, Jian</creatorcontrib><creatorcontrib>Li, Baocheng</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Yaqin</au><au>Mu, Chongli</au><au>Han, Zhongjian</au><au>Xu, Jian</au><au>Li, Baocheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Analysis of the In Situ Crack Evolution Behavior in a Solid Solution Mg-13Gd-5Y-3Zn-0.3Zr Alloy</atitle><jtitle>Materials</jtitle><stitle>MATERIALS</stitle><addtitle>Materials (Basel)</addtitle><date>2020-12-24</date><risdate>2020</risdate><volume>14</volume><issue>1</issue><spage>36</spage><pages>36-</pages><artnum>36</artnum><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>The low plasticity of high strength Mg-Gd-Y alloy has become the main obstacle to its application in engineering. In this paper, the origin, propagation and fracture processes of cracks of a solution of treated Mg-13Gd-5Y-3Zn-0.3Zr alloy were observed and studied with scanning electron microscopy (SEM) in an in situ tensile test to provide theoretical references for the development of a new high-performance Mg-Gd-Y alloy. The results showed that there was still some bulk long period stacking order (LPSO) phase remaining in solid solution Mg-13Gd-5Y-3Zn-0.3Zr alloy. Most importantly, it was found that the locations of micro-cracks vary with the different solution treatment processes, mainly including the following three types. (1) At 480 x 10 h and 510 degrees C x 10 h, much bulk LPSO phase with higher elastic modulus remains in the alloy, which can lead to micro-cracks in the LPSO phase due to stress concentration. (2) At 510 degrees C x 13 h and 510 degrees C x 16 h, the phase structure of bulk LPSO changes, and the stress concentration easily appears at the LPSO/alpha-Mg interface, which leads to micro-cracks at the interface. (3) At 510 degrees C x 19 h and 510 degrees C x 22 h, the grain size increases, and the stress concentration is obvious at the grain boundary of coarse grains, which leads to the formation of micro-cracks.</abstract><cop>BASEL</cop><pub>Mdpi</pub><pmid>33374133</pmid><doi>10.3390/ma14010036</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Bulk modulus Chemistry Chemistry, Physical Crack initiation Crack propagation Gadolinium Grain boundaries Grain size Heat resistance High strength alloys High temperature Magnesium alloys Magnesium base alloys Materials Science Materials Science, Multidisciplinary Mechanical properties Metallurgy & Metallurgical Engineering Microcracks Modulus of elasticity Physical Sciences Physics Physics, Applied Physics, Condensed Matter R&D Research & development Science & Technology Solid phases Solid solutions Solution heat treatment Stress concentration Technology Tensile tests |
| title | Analysis of the In Situ Crack Evolution Behavior in a Solid Solution Mg-13Gd-5Y-3Zn-0.3Zr Alloy |
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