... chloride to create a p H of 8 to 12. The proposed technology is less expensive compared to conventional quenching methods while providing the same or better end results in terms of increasing the service life of steel parts and tools and components made of powder metal materials. It is shown...

...Rob Haddock; Ron Dutton Published surveys concerning roof service life incorporate estimates from roofing professionals based on their observations and opinions. In cases where roofing products have been in service long enough for the end of life to be observed, these data have some merit, but when...

...Michael Pluimer ABSTRACT: The service life of our nation’s infrastructure has become a topic of increasing focus in recent years. While above-ground infrastructure deterioration is readily apparent, the infrastructure beneath the surface can be much worse and yet is often largely ignored until...

... installation and over its service life. Pulling force modeling similar to that outlined in ASTM 1962-05 is extended to consider the effects of pipe and soil deformations, so that cyclic response during installation and axial stress history after installation are determined. The study demonstrates that values...

... for the development of new technologies for large-sized parts based on the results obtained for small parts. The service life of steel parts increases after intensive quenching due to the formation of high surface compressive residual stresses and improved mechanical properties. During intensive quenching, the effect...

... of this thermoplastic material. This paper presents the protocol for evaluating the stresses in these critical structural members with new testing methods for determining the long-term stress capacity or service life for these members. This test method provides an alternate long-term stress crack evaluation protocol...

..., which subsequently spalls the reinforcing steel cover concrete. Initial service life prediction models were diffusion based deterministic/empirical models, which significantly overestimate service lives. Probabilistic solutions provided more realistic estimates. However, chloride corrosion service life...

... guidelines aimed at improving the reliability of accelerated test and prediction procedures used in the evaluation of the durability performance of sealed or adhered joints in immersed environments. KEYWORDS: durability, lifetime, service life, water immersion, joint, sealed, bonded, Arrhenius Introduction...

...G Borodkin; N Khrennikov; A Dmitriev; M Miroshnichenko; V Grivizirsky Reactor dosimetry issues have been analyzed in every aspect of extension of service life of non-restorable equipment of the Russian Vodo-Vodianoy Energetichesky Reactor (rus.) (VVER)-type reactors. A special attention has been...

.... A stochastic model was employed, using bootstrap resampling techniques, to project the corrosion protection service life extension provided by epoxy-coated reinforcement as compared to Bare steel for the population of Virginia bridge decks. Less than 25 % of all Virginia bridge decks built under specifications...

... the second stage and part s washing may be a single process. KEYWORDS: intensive quenching, density of dislocations, additional strengthening, superstrengthening, improved plastic properties, service life, new methods Introduction The phenomenon of superstrengthening of metals was for the first time...

...AT Wolf Despite extensive research on durability of building materials and components performed over the past two decades, no reliable quantitative method of service life prediction (SLP) has gained wide acceptance. Generic guidance is provided in documents published by ASTM, RILEM, EOTA and ISO...