Effects of aluminum content and mechanical nano‐alloying time on the preparation of titanium‐aluminum composite coatings on magnesium‐lithium alloy

Li, Y.; Sun, Jian; Zhu, Xiaohua; Mei, L.; Lei, Yiyuan; Du, Xiaodong; Wu, Yucheng

doi:10.1002/mawe.201900168

Cited by 2 publications

(1 citation statement)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In composite materials, the size of the crystallites is very significant for evaluating the bulk properties (mechanical, chemical, and electrical properties) [12,13]. Several authors examined the x-ray diffraction analysis of ball-milled mechanically alloyed composites concerning mixing time [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Investigating the effect of mixing time on the crystallite size and lattice strain of the AA7075/TiC composites

Alam

Azeem

et al. 2021

Materialwissenschaft Werkst

View full text Add to dashboard Cite

With numerous reinforcements, aluminum and its alloys are finding growing applications in every sector of industry. Titanium carbide (TiC) is regarded as an outstanding reinforcing material as compared to widely used carbide particles because of its excellent physical and mechanical characteristics, as well as its especially good interfacial bonding (wetting) capacity with aluminum. In the present research work, the effect of the mixing time of the matrix and reinforcement powders has been investigated on the crystallite size and lattice strain of the AA7075–5 wt.% TiC composites. The mechanical properties of the developed composites were also investigated in terms of microhardness values. X‐ray diffraction and scanning electron microscopy (SEM), transmission electron microscopy (TEM), particles size distribution analysis and x‐ray energy dispersive spectroscopy (EDS) of the synthesized powder samples were done to see the effect of mixing time on their microstructures. The increase in mixing time led to a homogeneous distribution of 5 wt.% of TiC particles, a decrease in particles clustering. The considerable grain refining was confirmed, which reflected a reduction in particle size originating from a prolonged mixing time. The significant improvement in the crystallite size and microhardness of the produced composites were achieved with increasing mixing time.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigating the effect of mixing time on the crystallite size and lattice strain of the AA7075/TiC composites

Alam

Azeem

et al. 2021

Materialwissenschaft Werkst

View full text Add to dashboard Cite

show abstract

Fabrication of Ti–N and Ti–Al–N Coatings on Mg–Li Alloy by Surface Mechanical Nanoalloying Treatment under Nitrogen Atmosphere at Room Temperature

et al. 2022

View full text Add to dashboard Cite

Ti–N and Ti–Al–N coatings are fabricated on LZ91 Mg–Li alloy by surface mechanical nanoalloying treatment (SMNAT) in nitrogen atmosphere at room temperature. This method is proposed to improve the high cost and high treatment temperature of preparing nitride coatings on Mg–Li alloys. The microstructure, phase compositions, and hardness of coatings are investigated systematically. Results show that Ti–N coating containing α‐Ti, β‐Ti, TiN0.3 and TiN0.9 phases can be prepared by SMNAT with pure titanium powder at room temperature under nitrogen atmosphere. The structure of Ti–N coating is a mixture of nanocrystalline and amorphous. The surface microhardness of Ti–N coating is 566.8 HV, which is about 80 HV higher than that of Ti coating obtained in argon atmosphere. By adding of the aluminum powders, a Ti–Al–N composite coating composed of nitrides (Ti3Al2N2, Ti2AlN, TiN0.76, and AlN) and intermetallics (Al11Ti5 and Al2Ti) is formed. The surface microhardness of Ti–Al–N composite coating reaches 743.2 HV, which is about 165.4 HV higher than that of Ti–Al coating obtained in argon atmosphere. Additionally, the continuity and uniformity of Ti–Al–N composite coating is improved due to which the Al powders can be seen as the bonding agent during SMNAT.

show abstract

Effects of aluminum content and mechanical nano‐alloying time on the preparation of titanium‐aluminum composite coatings on magnesium‐lithium alloy

Cited by 2 publications

References 24 publications

Investigating the effect of mixing time on the crystallite size and lattice strain of the AA7075/TiC composites

Investigating the effect of mixing time on the crystallite size and lattice strain of the AA7075/TiC composites

Fabrication of Ti–N and Ti–Al–N Coatings on Mg–Li Alloy by Surface Mechanical Nanoalloying Treatment under Nitrogen Atmosphere at Room Temperature

Contact Info

Product

Resources

About