NDLI: Improved wear resistance and mechanism of titanium aluminum based alloys reinforced by solid lubricant materials

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Improved wear resistance and mechanism of titanium aluminum based alloys reinforced by solid lubricant materials

Content Provider	Scilit
Author	Li, Xuewu Shi, Tian Zhang, Chuanwei Li, Simian Zhang, Jiahuan Zhang, Lai-Chang
Copyright Year	2018
Description	Journal: Materials Research Express Abrasion failure is a bottleneck problem that restricts the applications of titanium aluminum (TiAl) based alloys. This work has developed a facile method to endow TiAl alloys with superior wear resistance. TiAl composites reinforced by serpentine materials have been prepared by spark plasma sintering (SPS). Microstructural characterizations show that serpentine is well distributed in TiAl alloy matrix. Tribological behaviors in terms of a high-temperature friction and wear tester indicate that the reinforced particles play a positive role in decreasing wear rates and friction coefficients. Together with wear debris and high-temperature oxides, lubricant particles easily form a lubrication layer on frictional interfaces, which can help repair and compensate the worn-out pits and grooves thereby leading to the optimal wear resistance with the lowest friction coefficient of 0.41 and wear rate of 1.97×10-4 mm3/(Nm) at 400-600°C. This work sheds insights into evaluating the practicability of serpentine as a desirable solid lubricant and providing guidance for designing other serpentine-reinforced composites.
Related Links	http://iopscience.iop.org/article/10.1088/2053-1591/aad125/pdf
ISSN	20531591
e-ISSN	20531591
DOI	10.1088/2053-1591/aad125
Journal	Materials Research Express
Issue Number	8
Volume Number	5
Language	English
Publisher	IOP Publishing
Publisher Date	2018-07-04
Access Restriction	Open
Subject Keyword	Journal: Materials Research Express Metallurgy and Metallurgical Engineering Wear Resistance
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Metals and Alloys Biomaterials Electronic, Optical and Magnetic Materials Polymers and Plastics

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