The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy
<p dir="ltr">In this work, a bioresorbable Mg-ZKQX6000 (Mg–6Zn–0.6Zr–0.4Ag–0.2Ca (wt%)) alloy was severely plastically deformed via equal channel angular pressing (ECAP) according to three unique hybrid routes at low temperatures (200 °C to 125 °C). The roles of ECAP processing on mi...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | , , , , , , , |
| منشور في: |
2020
|
| الموضوعات: | |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513553323524096 |
|---|---|
| author | M.W. Vaughan (17128786) |
| author2 | A.I. Karayan (17128789) A. Srivastava (664260) B. Mansoor (17128792) J.M. Seitz (17128795) R. Eifler (17128798) I. Karaman (7737332) H. Castaneda (17128801) H.J. Maier (17128804) |
| author2_role | author author author author author author author author |
| author_facet | M.W. Vaughan (17128786) A.I. Karayan (17128789) A. Srivastava (664260) B. Mansoor (17128792) J.M. Seitz (17128795) R. Eifler (17128798) I. Karaman (7737332) H. Castaneda (17128801) H.J. Maier (17128804) |
| author_role | author |
| dc.creator.none.fl_str_mv | M.W. Vaughan (17128786) A.I. Karayan (17128789) A. Srivastava (664260) B. Mansoor (17128792) J.M. Seitz (17128795) R. Eifler (17128798) I. Karaman (7737332) H. Castaneda (17128801) H.J. Maier (17128804) |
| dc.date.none.fl_str_mv | 2020-10-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.msec.2020.111130 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/The_effects_of_severe_plastic_deformation_on_the_mechanical_and_corrosion_characteristics_of_a_bioresorbable_Mg-ZKQX6000_alloy/24287968 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Biomedical engineering Materials engineering Mechanical engineering Magnesium Bioresorbable orthopedic implants Severe plastic deformation Equal channel angular pressing Anodic dissolution Corrosion |
| dc.title.none.fl_str_mv | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">In this work, a bioresorbable Mg-ZKQX6000 (Mg–6Zn–0.6Zr–0.4Ag–0.2Ca (wt%)) alloy was severely plastically deformed via equal channel angular pressing (ECAP) according to three unique hybrid routes at low temperatures (200 °C to 125 °C). The roles of ECAP processing on microstructure, and ensuing mechanical properties and corrosion rates, are assessed. Microstructurally, ECAP induces a complex plethora of features, especially variations in grain sizes and precipitates' sizes, distributions, and morphologies for individual cases. Mechanically, ECAP generally refined grain size, resulting in ultra-high strength levels of about 400 MPa in ultimate tensile strength for several cases; however, deformation via ECAP of precipitates induced embrittlement and low elongation to failure levels. Corrosion testing, conducted in simulated bodily fluid at bodily pH levels to mimic conditions in the human body, revealed consistent corrosion rates across several techniques (mass loss, hydrogen evolution, and electrochemical impedance spectroscopy (EIS)), showing that severe plastic deformation deteriorates corrosion resistance for this material. In-situ corrosion monitoring explained that corrosion accelerated after ECAP due to the creation of heterogeneous, anodic shear zones, which exhibited dense regions of refined grains and fine precipitates. Suggestions for future design and thermomechanical processing of Mg alloys for bioresorbable orthopedic implants are provided.</p><h2>Other Information</h2><p dir="ltr">Published in: Materials Science and Engineering: C<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.msec.2020.111130" target="_blank">https://dx.doi.org/10.1016/j.msec.2020.111130</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_0b36fcf0eb7abe2e48b6e93c0dbfadee |
| identifier_str_mv | 10.1016/j.msec.2020.111130 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24287968 |
| publishDate | 2020 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloyM.W. Vaughan (17128786)A.I. Karayan (17128789)A. Srivastava (664260)B. Mansoor (17128792)J.M. Seitz (17128795)R. Eifler (17128798)I. Karaman (7737332)H. Castaneda (17128801)H.J. Maier (17128804)EngineeringBiomedical engineeringMaterials engineeringMechanical engineeringMagnesiumBioresorbable orthopedic implantsSevere plastic deformationEqual channel angular pressingAnodic dissolutionCorrosion<p dir="ltr">In this work, a bioresorbable Mg-ZKQX6000 (Mg–6Zn–0.6Zr–0.4Ag–0.2Ca (wt%)) alloy was severely plastically deformed via equal channel angular pressing (ECAP) according to three unique hybrid routes at low temperatures (200 °C to 125 °C). The roles of ECAP processing on microstructure, and ensuing mechanical properties and corrosion rates, are assessed. Microstructurally, ECAP induces a complex plethora of features, especially variations in grain sizes and precipitates' sizes, distributions, and morphologies for individual cases. Mechanically, ECAP generally refined grain size, resulting in ultra-high strength levels of about 400 MPa in ultimate tensile strength for several cases; however, deformation via ECAP of precipitates induced embrittlement and low elongation to failure levels. Corrosion testing, conducted in simulated bodily fluid at bodily pH levels to mimic conditions in the human body, revealed consistent corrosion rates across several techniques (mass loss, hydrogen evolution, and electrochemical impedance spectroscopy (EIS)), showing that severe plastic deformation deteriorates corrosion resistance for this material. In-situ corrosion monitoring explained that corrosion accelerated after ECAP due to the creation of heterogeneous, anodic shear zones, which exhibited dense regions of refined grains and fine precipitates. Suggestions for future design and thermomechanical processing of Mg alloys for bioresorbable orthopedic implants are provided.</p><h2>Other Information</h2><p dir="ltr">Published in: Materials Science and Engineering: C<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.msec.2020.111130" target="_blank">https://dx.doi.org/10.1016/j.msec.2020.111130</a></p>2020-10-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.msec.2020.111130https://figshare.com/articles/journal_contribution/The_effects_of_severe_plastic_deformation_on_the_mechanical_and_corrosion_characteristics_of_a_bioresorbable_Mg-ZKQX6000_alloy/24287968CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/242879682020-10-01T00:00:00Z |
| spellingShingle | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy M.W. Vaughan (17128786) Engineering Biomedical engineering Materials engineering Mechanical engineering Magnesium Bioresorbable orthopedic implants Severe plastic deformation Equal channel angular pressing Anodic dissolution Corrosion |
| status_str | publishedVersion |
| title | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy |
| title_full | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy |
| title_fullStr | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy |
| title_full_unstemmed | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy |
| title_short | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy |
| title_sort | The effects of severe plastic deformation on the mechanical and corrosion characteristics of a bioresorbable Mg-ZKQX6000 alloy |
| topic | Engineering Biomedical engineering Materials engineering Mechanical engineering Magnesium Bioresorbable orthopedic implants Severe plastic deformation Equal channel angular pressing Anodic dissolution Corrosion |