The corrosion protection study on inner surface from welding of aluminum alloy 7075-T6 hydrogen storage bottle

Wu, S.D.; Cheng, Wei-Yang; Yang, Jason Hsiao Chun; Yang, Chien-Hua; Liao, S. J.

doi:10.1016/j.ijhydene.2015.09.144

Cited by 13 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AA7075 has the best strength of any aluminum alloy, high fracture resistance, and moderate machinability but is susceptible to corrosion. 1,2 When it is solubilized and artificially aged, i.e. subject to T6 heat treatment, AA7075 increases its strength.…”

Section: Introductionmentioning

confidence: 99%

Effects of thin hard film deposition on fatigue strength of AA7075-T6

Baragetti

Arcieri

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

Thanks to their favorable strength-to-weight ratio, Aluminum-Zinc alloys are often used in high-performance industrial sectors. These alloys are characterized by poor erosion resistance, which could be increased by the deposition of thin films. For example, PVD (Physical Vapor Deposition) films can reduce wear and ensure appreciable performance in aggressive environments. This paper describes the effects of thin hard film deposition on the strength of AA7075 under cyclic loading. Uncoated samples and samples with a DLC (Diamond-Like Carbon) surface layer were tested with a rotating bending fatigue machine within the range of [Formula: see text]–[Formula: see text] cycles. Two regression models were tested to study the relationship between fatigue strength and number of cycles within the range considered. For the samples without the film, even a linear regression can be suitable. With regard to the fatigue strength of the samples with surface layer, a piecewise linear regression is suggested, although a high scatter of experimental data can be observed. Finite element (FE) modelling was used to calculate the stresses induced by bending moment. The bending stresses were added to the residual stresses induced by the film deposition. The maximum value was found beneath the sample surface. Therefore, crack nucleation is expected under the surface of samples with film. The fatigue cracks initiate at the surface in untreated samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of thin hard film deposition on fatigue strength of AA7075-T6

Baragetti

Arcieri

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…In addition, the corrosion resistance and stress corrosion characteristics of the welding parts are also aspects of aluminum alloy tanks that need to be concerned. Many scholars have carried out research on the corrosion resistance of aluminum alloy weldments [33][34][35][36] and proposed some surface treatment methods to improve the corrosion resistance of aluminum alloy weldments [37]. Considering the application of a liquid hydrogen environment, the welding performance of the material is also a key index of material selection in the manufacturing process of low-temperature storage tanks.…”

Section: Properties Of Aluminum Alloy For Liquid Hydrogen Storage And...mentioning

confidence: 99%

Research Progress of Cryogenic Materials for Storage and Transportation of Liquid Hydrogen

Qiu

Yang²,

Tong

et al. 2021

Metals

View full text Add to dashboard Cite

Liquid hydrogen is the main fuel of large-scale low-temperature heavy-duty rockets, and has become the key direction of energy development in China in recent years. As an important application carrier in the large-scale storage and transportation of liquid hydrogen, liquid hydrogen cryogenic storage and transportation containers are the key equipment related to the national defense security of China’s aerospace and energy fields. Due to the low temperature of liquid hydrogen (20 K), special requirements have been put forward for the selection of materials for storage and transportation containers including the adaptability of materials in a liquid hydrogen environment, hydrogen embrittlement characteristics, mechanical properties, and thermophysical properties of liquid hydrogen temperature, which can all affect the safe and reliable design of storage and transportation containers. Therefore, it is of great practical significance to systematically master the types and properties of cryogenic materials for the development of liquid hydrogen storage and transportation containers. With the wide application of liquid hydrogen in different occasions, the requirements for storage and transportation container materials are not the same. In this paper, the types and applications of cryogenic materials commonly used in liquid hydrogen storage and transportation containers are reviewed. The effects of low-temperature on the mechanical properties of different materials are introduced. The research progress of cryogenic materials and low-temperature performance data of materials is introduced. The shortcomings in the research and application of cryogenic materials for liquid hydrogen storage and transportation containers are summarized to provide guidance for the future development of container materials. Among them, stainless steel is the most widely used cryogenic material for liquid hydrogen storage and transportation vessel, but different grades of stainless steel also have different applications, which usually need to be comprehensively considered in combination with its low temperature performance, corrosion resistance, welding performance, and other aspects. However, with the increasing demand for space liquid hydrogen storage and transportation, the research on high specific strength cryogenic materials such as aluminum alloy, titanium alloy, or composite materials is also developing. Aluminum alloy liquid hydrogen storage and transportation containers are widely used in the space field, while composite materials have significant advantages in being lightweight. Hydrogen permeation is the key bottleneck of composite storage and transportation containers. At present, there are still many technical problems that have not been solved.

show abstract

“…Finding effective protection methods to prevent hydrogen embrittlement is an urgent matter [20]. Aluminum alloys with low mass and reasonable mechanical properties are considered as promising alloys for structural materials in aerospace systems and vehicle products [21,22]. The research direction of fuel cells and hydrogen energy safety includes three themes: hydrogen energy supply, fuel storage tank design and hydrogen leakage [23].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Hydrogen Embrittlement on Aluminum Alloys for Vehicle-Mounted Hydrogen Storage Tanks: A Review

Chen

Zhao

et al. 2021

Metals

View full text Add to dashboard Cite

High-pressure hydrogen tanks which are composed of an aluminum alloy liner and a carbon fiber wound layer are currently the most popular means to store hydrogen on vehicles. Nevertheless, the aluminum alloy is easily affected by high-pressure hydrogen, which leads to the appearance of hydrogen embrittlement (HE). Serious HE of hydrogen tank represents a huge dangers to the safety of vehicles and passengers. It is critical and timely to outline the mainstream approach and point out potential avenues for further investigation of HE. An analysis, including the mechanism (including hydrogen-enhanced local plasticity model, hydrogen-enhanced decohesion mechanism and hydrogen pressure theory), the detection (including slow strain rate test, linearly increasing stress test and so on) and methods for the prevention of HE on aluminum alloys of hydrogen vehicles (such as coating) are systematically presented in this work. Moreover, the entire experimental detection procedures for HE are expounded. Ultimately, the prevention measures are discussed in detail. It is believed that further prevention measures will rely on the integration of multiple prevention methods. Successfully solving this problem is of great significance to reduce the risk of failure of hydrogen storage tanks and improve the reliability of aluminum alloys for engineering applications in various industries including automotive and aerospace.

show abstract

The corrosion protection study on inner surface from welding of aluminum alloy 7075-T6 hydrogen storage bottle

Cited by 13 publications

References 16 publications

Effects of thin hard film deposition on fatigue strength of AA7075-T6

Effects of thin hard film deposition on fatigue strength of AA7075-T6

Research Progress of Cryogenic Materials for Storage and Transportation of Liquid Hydrogen

Analysis of Hydrogen Embrittlement on Aluminum Alloys for Vehicle-Mounted Hydrogen Storage Tanks: A Review

Contact Info

Product

Resources

About