Mechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel addition
The aim of this study is to understand the effect of nickel addition on mechanical and wear properties of molybdenum and copper alloyed P/M steel. Specimens with three different nickel contents were pressed under 400 MPa and sintered at 1120ºC for 30 minutes then rapidly cooled. Microstructures a...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2012-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2012/1450-53391200026Y.pdf |
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| author | Yamanoglu R. Karakulak E. Zeren M. |
| author_facet | Yamanoglu R. Karakulak E. Zeren M. |
| author_sort | Yamanoglu R. |
| collection | DOAJ |
| description | The aim of this study is to understand the effect of nickel addition on mechanical and wear properties of molybdenum and copper alloyed P/M steel. Specimens with three different nickel contents were pressed under 400 MPa and sintered at 1120ºC for 30 minutes then rapidly cooled. Microstructures and mechanical properties (bending strength, hardness and wear properties) of the sintered specimens were investigated in detail. Metallographical investigations showed that the microstructures of consolidated specimens consist of tempered martensite, bainite, retained austenite and pores. It is also reported that the amount of pores varies depending on the nickel concentration of the alloys. Hardness of the alloys increases with increasing nickel content. Specimens containing 2% nickel showed minimum pore quantity and maximum wear resistance. The wear mechanism changed from abrasive wear at low nickel content to adhesive wear at higher nickel content. |
| format | Article |
| id | doaj-art-ddc404372fc94af1827624ab0e673e30 |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-ddc404372fc94af1827624ab0e673e302025-02-02T01:33:15ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392012-01-0148225125810.2298/JMMB111128026YMechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel additionYamanoglu R.Karakulak E.Zeren M.The aim of this study is to understand the effect of nickel addition on mechanical and wear properties of molybdenum and copper alloyed P/M steel. Specimens with three different nickel contents were pressed under 400 MPa and sintered at 1120ºC for 30 minutes then rapidly cooled. Microstructures and mechanical properties (bending strength, hardness and wear properties) of the sintered specimens were investigated in detail. Metallographical investigations showed that the microstructures of consolidated specimens consist of tempered martensite, bainite, retained austenite and pores. It is also reported that the amount of pores varies depending on the nickel concentration of the alloys. Hardness of the alloys increases with increasing nickel content. Specimens containing 2% nickel showed minimum pore quantity and maximum wear resistance. The wear mechanism changed from abrasive wear at low nickel content to adhesive wear at higher nickel content.http://www.doiserbia.nb.rs/img/doi/1450-5339/2012/1450-53391200026Y.pdfpowder metallurgysinter hardeningwearmicrostructure |
| spellingShingle | Yamanoglu R. Karakulak E. Zeren M. Mechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel addition Journal of Mining and Metallurgy. Section B: Metallurgy powder metallurgy sinter hardening wear microstructure |
| title | Mechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel addition |
| title_full | Mechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel addition |
| title_fullStr | Mechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel addition |
| title_full_unstemmed | Mechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel addition |
| title_short | Mechanical and wear properties of pre-alloyed molybdenum P/M steels with nickel addition |
| title_sort | mechanical and wear properties of pre alloyed molybdenum p m steels with nickel addition |
| topic | powder metallurgy sinter hardening wear microstructure |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2012/1450-53391200026Y.pdf |
| work_keys_str_mv | AT yamanoglur mechanicalandwearpropertiesofprealloyedmolybdenumpmsteelswithnickeladdition AT karakulake mechanicalandwearpropertiesofprealloyedmolybdenumpmsteelswithnickeladdition AT zerenm mechanicalandwearpropertiesofprealloyedmolybdenumpmsteelswithnickeladdition |