A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block Conditions
Low-alloy CrNiMo cast steels are often used in the caterpillar boards of excavators in mining engineering machinery due to their good mechanical properties and low cost. Three CrNiMo cast steels with different carbon contents (0.20%, 0.29%, and 0.35% by weight) were developed in this work. The mecha...
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MDPI AG
2024-12-01
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| author | Chaoyong Li Yi Li Mingli Wang Pengxiao Zhu Cai Tang Xu Yang Jinyong Zhang Yulong Qi |
| author_facet | Chaoyong Li Yi Li Mingli Wang Pengxiao Zhu Cai Tang Xu Yang Jinyong Zhang Yulong Qi |
| author_sort | Chaoyong Li |
| collection | DOAJ |
| description | Low-alloy CrNiMo cast steels are often used in the caterpillar boards of excavators in mining engineering machinery due to their good mechanical properties and low cost. Three CrNiMo cast steels with different carbon contents (0.20%, 0.29%, and 0.35% by weight) were developed in this work. The mechanical properties of ingots of these cast steels can be optimized by heat-treated quenching and tempering (QT) and surface induction hardening (QTIH). The wear behavior of QT and QTIH specimens was evaluated under dynamic load and ring block conditions. The results show that the QT specimens exhibit a good mechanical performance and wear resistance. Compared to the QT specimens, the wear resistance can be further improved by QTIH treatment. The wear weight loss of QTIH specimens decreased by 42.7% and 73.2% under dynamic load and ring block wear tests, respectively. Additionally, the strength increased while plasticity and toughness decreased with increasing carbon content. Notably, when the carbon content is 0.29%, the CrNiMo cast steel exhibits an excellent combination of strength, ductility, and wear resistance. |
| format | Article |
| id | doaj-art-a019d790be9b4d4ea7fdeef3716b636d |
| institution | DOAJ |
| issn | 2075-4701 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj-art-a019d790be9b4d4ea7fdeef3716b636d2025-08-20T02:57:16ZengMDPI AGMetals2075-47012024-12-011412140910.3390/met14121409A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block ConditionsChaoyong Li0Yi Li1Mingli Wang2Pengxiao Zhu3Cai Tang4Xu Yang5Jinyong Zhang6Yulong Qi7School of Mechanical & Electrical Engineering, Xuzhou University of Technology, Xuzhou 221018, ChinaSchool of Mechanical & Electrical Engineering, Xuzhou University of Technology, Xuzhou 221018, ChinaSchool of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mechanical & Electrical Engineering, Xuzhou University of Technology, Xuzhou 221018, ChinaSchool of Mechanical & Electrical Engineering, Xuzhou University of Technology, Xuzhou 221018, ChinaSchool of Mechanical & Electrical Engineering, Xuzhou University of Technology, Xuzhou 221018, ChinaSchool of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Mechanical & Electrical Engineering, Xuzhou University of Technology, Xuzhou 221018, ChinaLow-alloy CrNiMo cast steels are often used in the caterpillar boards of excavators in mining engineering machinery due to their good mechanical properties and low cost. Three CrNiMo cast steels with different carbon contents (0.20%, 0.29%, and 0.35% by weight) were developed in this work. The mechanical properties of ingots of these cast steels can be optimized by heat-treated quenching and tempering (QT) and surface induction hardening (QTIH). The wear behavior of QT and QTIH specimens was evaluated under dynamic load and ring block conditions. The results show that the QT specimens exhibit a good mechanical performance and wear resistance. Compared to the QT specimens, the wear resistance can be further improved by QTIH treatment. The wear weight loss of QTIH specimens decreased by 42.7% and 73.2% under dynamic load and ring block wear tests, respectively. Additionally, the strength increased while plasticity and toughness decreased with increasing carbon content. Notably, when the carbon content is 0.29%, the CrNiMo cast steel exhibits an excellent combination of strength, ductility, and wear resistance.https://www.mdpi.com/2075-4701/14/12/1409CrNiMo cast steelcarbon contentwear resistancemechanical properties |
| spellingShingle | Chaoyong Li Yi Li Mingli Wang Pengxiao Zhu Cai Tang Xu Yang Jinyong Zhang Yulong Qi A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block Conditions Metals CrNiMo cast steel carbon content wear resistance mechanical properties |
| title | A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block Conditions |
| title_full | A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block Conditions |
| title_fullStr | A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block Conditions |
| title_full_unstemmed | A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block Conditions |
| title_short | A Comparative Study on the Wear Resistance of CrNiMo Cast Steels Under Dynamic Load and Ring Block Conditions |
| title_sort | comparative study on the wear resistance of crnimo cast steels under dynamic load and ring block conditions |
| topic | CrNiMo cast steel carbon content wear resistance mechanical properties |
| url | https://www.mdpi.com/2075-4701/14/12/1409 |
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