Structural characterisation of oxygen diffusion hardened alpha-tantalum PVD-coatings on titanium

Hertl, C.; Koll, L.; Schmitz, T.; Werner, Ewald; Gbureck, Uwe

doi:10.1016/j.msec.2014.03.018

Cited by 20 publications

(6 citation statements)

References 27 publications

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“…The simulations proved that the chosen dimensions of the locking lugs were right for case 1 and 3, and hence all other dependent components designed considering these dimensions would function without discrepancy. Further, fatigue life for AISI 4340 can be improved by TiCN coatings [15] and shotpeening [16], while titanium alloy can be worked out with NiCrAlY [17] and tantalum coatings [18] to achieve the same. 6.…”

Section: Resultsmentioning

confidence: 99%

Design and Static Load Analysis Comparing Steel, Grey Cast Iron and Titanium Alloy as Materials for Breech Hinged Lugs in Recoil Weapons

Chaturvedi

Dwivedi

2018

AiMT

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This design innovation work is related to design validation of short recoil weapons mechanism's critical components in context of upper receivers. It explains a new mechanism for locking and unlocking of bolt with the breech and subsequent advantageous design changes in the bolt's construction. This design intends to build a new platform for a short recoil weapon chambered in 5.56×45 NATO ammunition which promises competency with its existing counter parts of the same domain, but exhibiting exceptionally improved reliability due to elimination of interdependence of reciprocating cycles of barrel and bolt assemblies. This work involves the design of the whole functioning system using Solidworks 2015 version and a static structural analysis to compare and choose the most suitable material among commonly used ones: steel AISI 4340, grey cast iron and titanium alloy Ti-6Al-4V, for locking lugs, being critical pair of components, using ANSYS 14.5. Results showed that titanium alloy was the most suitable material for the strength purpose. It is to be noted that this system may not only be utilized for assault rifles, but also for sub-machine guns, machine gun variants and even in handguns.

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Section: Resultsmentioning

confidence: 99%

Design and Static Load Analysis Comparing Steel, Grey Cast Iron and Titanium Alloy as Materials for Breech Hinged Lugs in Recoil Weapons

Chaturvedi

Dwivedi

2018

AiMT

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“…The three annealing temperatures for heat treatment were set at 300, 400 and 500°C [21,[29][30][31]. The heating rate was adjusted to 5°C min -1 until the target temperature was reached, at which the specimens were kept for 60 min [32,33]. In the final step, the samples were left in the furnace to cool naturally.…”

Section: Thermal Treatment Of Ta-o Coatingmentioning

confidence: 99%

Enhancing the adhesion strength of tantalum oxide ceramic thin film coating on biomedical Ti–6Al–4V alloy by thermal surface treatment

Rahmati

Zalnezhad

Sarhan

et al. 2015

Ceramics International

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“…So far, several techniques used for preparing Ta-based films have been reported, involving magnetron sputtering [13,14], ion beam assisted deposition (IBAD) [15], filtered cathodic vacuum arc deposition (FCVAD) [16], and chemical vapor deposition (CVD) [17]. Either way, the residual oxygen in the deposition chamber may lead to partial oxidation of the as-deposited Ta films to some extent.…”

Section: Introductionmentioning

confidence: 99%

XPS Investigation of the Oxidation States of the As-Deposited Ta Films Prepared by Magnetron Sputtering Technology

Hu,

Li,

Gao

et al. 2023

Materials

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Due to their versatile and unique properties, tantalum-based thin films have been extensively studied. However, tantalum is susceptible to oxidation due to its higher chemical activity, which is crucial regardless of whether oxidations of Ta are beneficial or detrimental. Therefore, the oxidation of Ta during material processing, especially without conscious means, should be taken seriously. In this study, pure Ta films were fabricated by magnetron sputtering under set procedure parameters. The effects of base pressure and substrate temperature on the degree of oxidation of Ta films were investigated. The results revealed that the magnitude of the base pressure directly affects the oxidation state of the as-deposited Ta films. When preferably avoiding the oxidation of sputtered Ta films, the base pressure should be controlled below 4.4 × 10−4 Pa. The substrate temperature has little effect on the oxidation state of the as-deposited Ta films under a base pressure ranging from about 10−2 Pa to 10−4. We hope that this study can provide some references for controlling the oxidation states of Ta involved in relevant film preparation.

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Structural characterisation of oxygen diffusion hardened alpha-tantalum PVD-coatings on titanium

Cited by 20 publications

References 27 publications

Design and Static Load Analysis Comparing Steel, Grey Cast Iron and Titanium Alloy as Materials for Breech Hinged Lugs in Recoil Weapons

Design and Static Load Analysis Comparing Steel, Grey Cast Iron and Titanium Alloy as Materials for Breech Hinged Lugs in Recoil Weapons

Enhancing the adhesion strength of tantalum oxide ceramic thin film coating on biomedical Ti–6Al–4V alloy by thermal surface treatment

XPS Investigation of the Oxidation States of the As-Deposited Ta Films Prepared by Magnetron Sputtering Technology

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