1. Effect of Lanthanum on mechanical and wear properties of high-pressure die-cast Mg-3Al-3Sn-3Sb alloy
- Author
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Hüseyin Şevik, Levent Cenk Kumruoğlu, Selma Özarslan, Güven Yarkadaş, Mühendislik ve Doğa Bilimleri Fakültesi -- Metalurji ve Malzeme Mühendisliği Bölümü, and Kumruoğlu, Levent Cenk
- Subjects
business.product_category ,Dry sliding wear ,Mechanical properties ,02 engineering and technology ,Die casting ,Grain Refinement ,0203 mechanical engineering ,Lanthanum ,General Materials Science ,Elevated temperature ,Rare-earth element (La) ,Magnesium Alloys ,Wear testing ,021001 nanoscience & nanotechnology ,Wear of materials ,020303 mechanical engineering & transports ,Mechanics of Materials ,High pressure ,Die (manufacturing) ,Precipitation Hardening ,0210 nano-technology ,Tin alloys ,Materials science ,High pressure die casts ,High pressure effects ,Materials Science ,Alloy ,chemistry.chemical_element ,engineering.material ,Aluminum coated steel ,Wear properties ,Intermetallic phasis ,Lanthanum alloys ,Characterization & Testing ,Magnesium alloy ,Antimony alloys ,Molybdenum steel ,Mechanical Engineering ,Metallurgy ,Binary alloys ,Aluminum alloys ,chemistry ,Alloying elements ,engineering ,Test condition ,Micro-structural ,business ,Sliding velocities - Abstract
In the present study, the effect of an La alloying element with different quantities (1, 3 and 5 wt.-%) on the microstructure, mechanical and dry sliding wear properties of Mg- 3Al-3Sn-3Sb alloy was investigated. The wear tests were done on the alloys using pin on-disk equipment against a 4140 steel disc as counterpart under three different sliding velocities of 0.3, 0.6 and 1.2 ms-1 and four different loads of 5, 10, 20 and 40 N. The microstructural results showed that the new intermetallic phases (La5Sn3 and LaSnSb2) were formed with addition of La to the main alloy. Also, it was observed that the hardness of the Mg-3Al-3Sn-3Sb alloy was raised with increasing La addition. Furthermore, the tensile properties of the Mg-3Al-3Sn-3Sb alloy improved with rising La content at room and elevated temperature. The wear rates of the alloys increase with increasing of the sliding speed and load. In addition to this, the wear rate of the Mg-3Al-3Sn-3Sb alloy was found to be higher than that of the La content alloys for all test conditions.
- Published
- 2021
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