https://oatao.univ-toulouse.fr/5448/1/Laffont_5448.pdf

Effect of surface preparation on the corrosion of austenitic stainless steel 304L in high temperature steam and simulated PWR primary water

Effect of electropolishing on corrosion of nuclear grade 316L stainless steel in deaerated high temperature water

Treatment of bone defects caused by trauma or disease is a major burden on human healthcare systems. Although autologous bone grafts are considered as the gold standard, they are limited in availability and are associated with post-operative complications. Minimally invasive alternatives using injectable bone cements are currently used in certain clinical procedures, such as vertebroplasty and balloon kyphoplasty. Nevertheless, given the high incidence of fractures and pathologies that result in bone voids, there is an unmet need for injectable materials with desired properties for minimally invasive procedures. This paper provides an overview of the most common injectable bone cement materials for clinical use. The emphasis has been placed on calcium phosphate cements and acrylic bone cements, while enabling the readers to compare the opportunities and challenges for these two classes of bone cements. This paper also briefly reviews antibiotic-loaded bone cements used in bone repair and implant fixation, including their efficacy and cost for healthcare systems. A summary of the current challenges and recommendations for future directions has been brought in the concluding section of this paper.

https://journals.sagepub.com/doi/pdf/10.1177/2280800019872594

A review of calcium phosphate cements and acrylic bone cements as injectable materials for bone repair and implant fixation.

Experimental investigation on working fluid selection in a micro pulsating heat pipe

Effect of electropolishing on corrosion of Alloy 600 in high temperature water

AISI 316Ti is Cr-Ni-Mo austenitic stainless steel stabilized by Ti, recommended for construction of various industrial and medicine devices. In spite of its high Pitting Equivalent Resistance Number (PREN=23.688) it underlies local corrosion namely pitting in aggressive chloride environment. Appearance and extent of AISI 316Ti corrosion damage in a particular chloride solution depends strongly on temperature and surface treatment. One part of tested specimens is surface untreated the second part is treated by nitric acid passivation. Specimens are immersed for 24 hours at the temperatures of 30, 50 and 80 °C in 0.3M FeCl3 solution to induce pitting. Pitting corrosion morphology (shape and size of corrosion pits) is observed viewed from above and in profile as well, by optical metallographic microscope and scanning electrone microscopy SEM. Shape and size of corrosion pits is compared in dependence on temperature and surface finish of specimens.

/pdf/variability-of-local-corrosion-attack-morphology-of-aisi-4u5d0fufxi.pdf

Variability of Local Corrosion Attack Morphology of AISI 316Ti Stainless Steel in Aggressive Chloride Environment

The stainless steel surface treatment is very important with regard to its pitting corrosion susceptibility An effect of various types surfacing on pitting corrosion resistance of AISI 304stainless steel is investigated in this work The samples of the tested material are turned, blasted, peened, grinded and a half of them are pickled to achieve higher purity of surfaces and better quality of passive film Eight types of different finished surfaces are tested by electrochemical and immersion tests to determine corrosion behaviour in conditions where pitting is evoked by controlled potential and second by solution with high redox potential By this way the effect of mechanical and chemical surface treatment on the resistance to pitting corrosion, character, size and shape of pits are compared in the conditions of different mechanisms of corrosion process

http://fstroj.uniza.sk/journal-mi/PDF/2011/20-2011.pdf

Pitting corrosion of stainless steel at the various surface treatment

The aim of this work was to investigate variations of temperature in acrylic bone cement SmartSet HV during its polymerization as the function of mixing technique (hand mixing and vacuum mixing) and sample thickness. The temperature of 25-mm diameter samples differing in their thickness was monitored using a parallel plate measuring system of the compact rheometer preheated to the body temperature. The curves representing the temperature measured and average values of times needed to obtain the peak temperatures of the test samples prepared by different techniques of mixing are presented and discussed. It was found that the maximum temperature and also the times of peak temperatures rose with sample thickness but at different rate for each technique of mixing.

http://www.actabio.pwr.wroc.pl/Vol11No3/7.pdf?origin=publication_detail

Variations of temperature of acrylic bone cements prepared by hand and vacuum mixing during their polymerization.

The current paper investigates effects of various surface treatment techniques suchas grinding, garnet blasting, and shot peening on the corrosion rate and behaviorof austenite stainless steel of type AISI 316 Ti. The exposure to different corrosivesolutions usually accompanying the coastal and industrial environments (sodiumchloride and ferric chloride), as well as a combination of the two was considered. Thecorrosion behavior of AISI 316 Ti under these test conditions was investigated usingimmersion tests and electrochemical impedance spectroscopy together with opticalscanning electron microscopy, in order to observe and to assess the changes in thesurface configuration and topography such the shapes, distribution, and dimensionsof the resulting pits. The presented results clearly show the relatively higher corrosiveeffect of ferric chloride, and the increased corrosion rate under greater surfaceroughness values, which imply greater real surface area and capillarity effects.

/pdf/mechanical-surface-treatments-effects-on-corrosion-of-aisi-2tv674mkjv.pdf

Mechanical surface treatments effects on corrosion of AISI 316 Ti stainless steel in chloride environments

For the past fifty years bone cements based on polymethylmethacrylate (PMMA) have been used in orthopaedic surgery for fixation of endoprostheses, especially in the cases of total hip replacement. It was shown that during this period vacuum mixing minimalizes the number of unwanted pores and thereby influences the mechanical properties of the cement. It was also discovered that later polymerization of the cement after its implantation lasts up to 6 months and changes its mechanical properties. In this study, mechanical properties (microhardness and elastic modulus measured by microindentation) of hand- and vacuum-mixed acrylic bone cement SmartSet HV® were investigated and compared after different time of cement exposition. This study points out that the measures of changes occurring with time in mechanical properties of differently mixed cement samples are equal but microhardness and elastic modulus are different and depend upon the technology of mixing.

http://www.actabio.pwr.wroc.pl/Vol12No4/9.pdf

Tatiana Liptáková

Papers

Variability of Local Corrosion Attack Morphology of AISI 316Ti Stainless Steel in Aggressive Chloride Environment

Pitting corrosion of stainless steel at the various surface treatment

Variations of temperature of acrylic bone cements prepared by hand and vacuum mixing during their polymerization.

Mechanical surface treatments effects on corrosion of AISI 316 Ti stainless steel in chloride environments

Time and mixing technique-dependent changes in bone cement SmartSet® HV.