.... DoD standardization hydrogen embrittlement stress corrosion hardness tensile strength plating hydrogen-stress cracking brittle failure atomic hydrogen ferrous metals Edward T. Clegg I Hydrogen Embrittlement Coverage by U.S. Government Standardization Documents REFERENCE: Clegg, E. T...

... The degree of hydrogen embrittlement produced in high-strength 4340 steel by various cadmium, cadmium-titanium, and nickel plating-and-baking procedures is assessed from fracture stress values obtained during slow strain rate tests using notched tension specimens. At low crosshead displacement...

... Recovery of chromium from a plating sludge is discussed. The process consists of two parts: roasting the sludge with sodium carbonate (Na 2 CO 3 ) and calcium oxide (CaO), followed by leaching. The optimal parameters for roasting are a temperature range of 950 to 1000°C and Na 2 CO 3 and CaO...

.... formability mechanical properties mechanical tests fatigue tests bend tests fatigue (materials) deformation flexural strains accelerated testing specifications metal foils copper foil plating composite materials laminates W. Engelmaier^ A Method for the Determination of Ductility for Thin...

... the test is performed. The pros and cons of each test are discussed in the light of substantial practical experience, and data for the various deposit-substrate combinations are included. adhesion tests adhesion plating tension tests shear tests J. W. DinP and H. R. Johnson ~ Adhesion Testing...

... of the DPT are sensitivity, versatility, rapidity, simplicity, and low cost of specimens and equipment. hydrogen embrittlement pressure biaxial stresses plating cathodic charging thermal charging high strength steels austenitic steels nickel uranium titanium materials selection quality...

... High-strength steel notched C-rings have proven to be useful specimens for studying the effects of hydrogen embrittlement, as well as screening plating processes, cleaning, and paint removal materials for use on naval aircraft parts. The specimen and some of its uses are described. tests...

... A stressed steel O-ring is used by the Douglas Aircraft Company to determine the hydrogen embrittling tendency of various processes. The use of the Douglas stress ring is described for testing processes, such as plating, cleaning, deoxidizing, and paint stripping. The method of selecting...

..., simplicity, and low cost for hydrogen embrittlement testing and compared directly with the stress-rupture machine in both sensitivity and variability. Results of tests conducted to determine the ability of the new method to detect varying amounts of hydrogen obtained by cadmium plating using three different...

... This paper describes a practical test that enables the metal finisher to detect changes in a standardized plating and baking procedure. Low-cost test strips are processed with the work through the complete cycle. Changes in their median time to fracture measures the degree of hydrogen...

... plated steel specimens heat treated to 260 to 280 ksi strength level when compared with the notched tension testing (failure) data show that the safe limit for (total or bulk) hydrogen concentration as measured by this technique is about 1 ppm. Results on forged steel specimens heat treated to 170 to 195...

... for the bolt, a coating or plating is usually applied, which protects the underlying metal. In many cases, the coating chosen has proven to be inadequate. Therefore, a program was initiated to perfect a test method and gather reliable results from which predictable performance data could be obtained. Many...

... Exposure of high-strength steel bolts (260,000 psi) to the natural environments of temperature changes, moisture, and salt air have resulted in a number of stress corrosion cracking failures. Cadmium plating of the bolts has not prevented these failures. This paper presents a study of bolts made...