Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in Seawater
The fretting wear characteristics of two different energy density 316L stainless steels formed by selective laser melting (SLM) under different friction conditions are studied. The image method was used to study the porosity of two samples with different energy densities (46.88 J/mm<sup>3</...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
|
| Series: | Lubricants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4442/11/1/7 |
| _version_ | 1797439554885517312 |
|---|---|
| author | Mingji Huang Ping Chen Xiaoxi Qiao |
| author_facet | Mingji Huang Ping Chen Xiaoxi Qiao |
| author_sort | Mingji Huang |
| collection | DOAJ |
| description | The fretting wear characteristics of two different energy density 316L stainless steels formed by selective laser melting (SLM) under different friction conditions are studied. The image method was used to study the porosity of two samples with different energy densities (46.88 J/mm<sup>3</sup>, 98.96 J/mm<sup>3</sup>) formed by SLM. The dynamic wear test, respectively, evaluates its wear morphology and wear depth under three conditions: dry friction, distilled water, and an 3.5% NaCl solution. The porosity of the samples with SLM forming an energy density of 46.88 J/<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi>mm</mi></mrow><mn>3</mn></msup></mrow></semantics></math></inline-formula> and 98.96 J/<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi>mm</mi></mrow><mn>3</mn></msup></mrow></semantics></math></inline-formula> are 7.66% and 1.00%, respectively. Under the three conditions, the friction coefficient and wear depth of the samples with high energy density are smaller than those of the samples with low energy density; the friction of the samples with two energy densities in aqueous solution is faster than dry friction in air and tends to be stable. The friction coefficient in 3.5% NaCl solution is the smallest; when the energy density is constant, the wear depth of the fretting wear is the largest under dry friction and the smallest in distilled water. Under dry-friction conditions, the wear mechanisms of fretting wear are mainly oxidative wear and adhesive wear. In the fretting wear in the distilled water and the 3.5% NaCl solution, both wear mechanisms are abrasive wear and fatigue wear. |
| first_indexed | 2024-03-09T11:55:43Z |
| format | Article |
| id | doaj.art-9628e84e2be440e3b30d00e73d5524f2 |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-09T11:55:43Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-9628e84e2be440e3b30d00e73d5524f22023-11-30T23:10:09ZengMDPI AGLubricants2075-44422022-12-01111710.3390/lubricants11010007Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in SeawaterMingji Huang0Ping Chen1Xiaoxi Qiao2School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaThe fretting wear characteristics of two different energy density 316L stainless steels formed by selective laser melting (SLM) under different friction conditions are studied. The image method was used to study the porosity of two samples with different energy densities (46.88 J/mm<sup>3</sup>, 98.96 J/mm<sup>3</sup>) formed by SLM. The dynamic wear test, respectively, evaluates its wear morphology and wear depth under three conditions: dry friction, distilled water, and an 3.5% NaCl solution. The porosity of the samples with SLM forming an energy density of 46.88 J/<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi>mm</mi></mrow><mn>3</mn></msup></mrow></semantics></math></inline-formula> and 98.96 J/<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mrow><mi>mm</mi></mrow><mn>3</mn></msup></mrow></semantics></math></inline-formula> are 7.66% and 1.00%, respectively. Under the three conditions, the friction coefficient and wear depth of the samples with high energy density are smaller than those of the samples with low energy density; the friction of the samples with two energy densities in aqueous solution is faster than dry friction in air and tends to be stable. The friction coefficient in 3.5% NaCl solution is the smallest; when the energy density is constant, the wear depth of the fretting wear is the largest under dry friction and the smallest in distilled water. Under dry-friction conditions, the wear mechanisms of fretting wear are mainly oxidative wear and adhesive wear. In the fretting wear in the distilled water and the 3.5% NaCl solution, both wear mechanisms are abrasive wear and fatigue wear.https://www.mdpi.com/2075-4442/11/1/7selective laser melting316L stainless steelenergy densityporosityfretting wear |
| spellingShingle | Mingji Huang Ping Chen Xiaoxi Qiao Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in Seawater Lubricants selective laser melting 316L stainless steel energy density porosity fretting wear |
| title | Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in Seawater |
| title_full | Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in Seawater |
| title_fullStr | Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in Seawater |
| title_full_unstemmed | Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in Seawater |
| title_short | Fretting Wear Characteristics of SLM-Formed 316L Stainless Steel in Seawater |
| title_sort | fretting wear characteristics of slm formed 316l stainless steel in seawater |
| topic | selective laser melting 316L stainless steel energy density porosity fretting wear |
| url | https://www.mdpi.com/2075-4442/11/1/7 |
| work_keys_str_mv | AT mingjihuang frettingwearcharacteristicsofslmformed316lstainlesssteelinseawater AT pingchen frettingwearcharacteristicsofslmformed316lstainlesssteelinseawater AT xiaoxiqiao frettingwearcharacteristicsofslmformed316lstainlesssteelinseawater |