The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O Alloys
A novel Ti-N-O composite was prepared by powder nitriding/oxynitriding combined with the spark plasma sintering (SPS) method. The effects of N/O on the microstructure and mechanical properties of the Ti-N-O alloy were systematically studied. The results showed that the addition of N/O elements signi...
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2025-05-01
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| author | Mingqi Shi Ruiduo Chen Chengsong Zhang Zhenzhao Xu Hanke Hu Xiaolong Zhou Guodong Cui |
| author_facet | Mingqi Shi Ruiduo Chen Chengsong Zhang Zhenzhao Xu Hanke Hu Xiaolong Zhou Guodong Cui |
| author_sort | Mingqi Shi |
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| description | A novel Ti-N-O composite was prepared by powder nitriding/oxynitriding combined with the spark plasma sintering (SPS) method. The effects of N/O on the microstructure and mechanical properties of the Ti-N-O alloy were systematically studied. The results showed that the addition of N/O elements significantly improved the mechanical properties of commercially pure titanium (cp-Ti). The hardness reached 298.8 HV0.1 while the yield strength can reach 666 MPa. And, the O element played a leading role in regulating the microstructure and morphology of the Ti-N-O alloy. With the addition of the O element, the microstructure showed an equiaxed structure, and the characterization showed that this region is an O-enriched region, and that a small amount of nano-TiO<sub>2</sub> particles appeared in the alloy, which together led to the change in the microstructure. At the same time, more large-angle grain boundaries were generated in the Ti-N-O alloy. This study investigated a new method for the preparation of titanium materials and provides new ideas for researching medical titanium materials. |
| format | Article |
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| institution | OA Journals |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-05-01 |
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| series | Metals |
| spelling | doaj-art-eccef86b3ab5427da1c28f0b47f55f9d2025-08-20T02:33:51ZengMDPI AGMetals2075-47012025-05-0115555410.3390/met15050554The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O AlloysMingqi Shi0Ruiduo Chen1Chengsong Zhang2Zhenzhao Xu3Hanke Hu4Xiaolong Zhou5Guodong Cui6Key Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaKey Laboratory of Advanced Technology of Materials of Education Ministry, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaA novel Ti-N-O composite was prepared by powder nitriding/oxynitriding combined with the spark plasma sintering (SPS) method. The effects of N/O on the microstructure and mechanical properties of the Ti-N-O alloy were systematically studied. The results showed that the addition of N/O elements significantly improved the mechanical properties of commercially pure titanium (cp-Ti). The hardness reached 298.8 HV0.1 while the yield strength can reach 666 MPa. And, the O element played a leading role in regulating the microstructure and morphology of the Ti-N-O alloy. With the addition of the O element, the microstructure showed an equiaxed structure, and the characterization showed that this region is an O-enriched region, and that a small amount of nano-TiO<sub>2</sub> particles appeared in the alloy, which together led to the change in the microstructure. At the same time, more large-angle grain boundaries were generated in the Ti-N-O alloy. This study investigated a new method for the preparation of titanium materials and provides new ideas for researching medical titanium materials.https://www.mdpi.com/2075-4701/15/5/554powder nitriding/oxynitridingspark plasma sinteringcommercially pure titaniummicrostructuremechanical properties |
| spellingShingle | Mingqi Shi Ruiduo Chen Chengsong Zhang Zhenzhao Xu Hanke Hu Xiaolong Zhou Guodong Cui The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O Alloys Metals powder nitriding/oxynitriding spark plasma sintering commercially pure titanium microstructure mechanical properties |
| title | The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O Alloys |
| title_full | The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O Alloys |
| title_fullStr | The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O Alloys |
| title_full_unstemmed | The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O Alloys |
| title_short | The Effect of N/O Elements on the Microstructure and Mechanical Properties of Ti-N-O Alloys |
| title_sort | effect of n o elements on the microstructure and mechanical properties of ti n o alloys |
| topic | powder nitriding/oxynitriding spark plasma sintering commercially pure titanium microstructure mechanical properties |
| url | https://www.mdpi.com/2075-4701/15/5/554 |
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