A new nonmetallic inclusion rating method by the positive use of the hydrogen embrittlement phenomenon

Metal Fatigue ◽  
2019 ◽  
pp. 609-641
Author(s):  
Yukitaka Murakami
Keyword(s):  
Hydrogen Embrittlement ◽  
Nonmetallic Inclusion ◽  
Rating Method

Modern Approaches to the Teaching of Risk Scienceat a University

2020 ◽  
Vol 17 (5) ◽  
pp. 94-110
Author(s):  
V. V. Gamukin
Keyword(s):  
Rating Scale ◽  
Human Life ◽  
Risk Identification ◽  
Individual Risk ◽  
Professional Activities ◽  
Basic Competencies ◽  
Internal Rating ◽  
Rating Method ◽  
Intuitive Method ◽  
Numeric Rating

Purpose. Disclosure of the peculiarities of the organization of modern training of university students with a risky perception of reality in order to form basic competencies for future professional activities.Methods. As part of the study, the following were used: the systematization method, the structural analysis method and the numeric rating method.Results. The peculiarities of riskology training in the construction of an individual educational route are determined, in which the possibility of students independently choosing disciplines to realize their own interests in various fields of knowledge is used. Methods of obtaining risk identification skills from trainees are formulated. It is determined that using the intuitive method of risk formalization is the most accessible and expeditious way to remember the possibility of risks. The need to develop a sustainable habit of assessing risks in the future and in fact is justified. This skill is successfully developed using a numeric rating method. The need to develop an internal rating scale for each student is justified, which is useful for making decisions. Disclosed is a method of assimilating risk analysis skills in dynamics. This allows you to identify the development of forecast estimates in comparison with the fact for each individual risk and compile several risks.Conclusion. An educational experiment on the introduction of the Riskology discipline for students ofTyumenStateUniversity suggests that they have successfully overcome the stage of high risk of perception of reality that arose during the COVID-19 pandemic. The acquired knowledge and practical skills will ensure a similar perception of other events in their lives and professional activities. It is necessary to fully expand such practices and find an opportunity to supplement educational programs in universities, regardless of their orientation, with disciplines that directly reveal the nature of risk in human life and give them the ability to manage them.

Effect of the Electro-Chemical Hydrogen Charging Time on Hydrogen Embrittlement of X70 Steel Using for Gas Pipeline

2013 ◽  
Vol 51 (11) ◽  
pp. 813-820
Author(s):  
Chi-Eun Sung ◽  
Hyeon-Jee Jeon ◽  
Jin-Kyung Lee ◽  
In-Soo Son ◽  
Sang-Pill Lee ◽  
...  
Keyword(s):  
Hydrogen Embrittlement ◽  
Gas Pipeline ◽  
Hydrogen Charging ◽  
Charging Time

HIDUREL 5

Alloy Digest ◽  
1996 ◽  
Vol 45 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Hydrogen Embrittlement ◽  
Physical Properties ◽  
Tensile Properties ◽  
Precipitation Hardening ◽  
Bronze Alloy ◽  
Silicon Bronze ◽  
Nickel Silicon

Abstract Hidurel 5 is a precipitation-hardening copper-nickel-silicon bronze alloy with high conductivity and strength, corrosion resistance to marine environments and hydrogen embrittlement, and good antifrictional properties. This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength as well as fracture toughness. It also includes information on machining. Filing Code: CU-607. Producer or source: Langley Alloys Ltd.

ANACONDA ALLOY 1870

Alloy Digest ◽  
1976 ◽  
Vol 25 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Hydrogen Embrittlement ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
High Conductivity ◽  
Reducing Atmosphere

Abstract ANACONDA Alloy 1870 is a free-cutting high-conductivity copper. It is a deoxidized copper with lead added to impart free-cutting properties. The various and unusual properties of Alloy 1870 make it suitable for many applications in the manufacture of parts machined from rods and for current-carrying studs, nuts and bolts designed for use at normal temperatures. Because it is deoxidized, it is not susceptible to hydrogen embrittlement if heated in a reducing atmosphere. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-318. Producer or source: Anaconda American Brass Company.

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