... on the core and surface properties of components. In particular, grain size, residual stress profiles, microstructure, and precipitation were investigated due to their impact on the life duration of aerospace bearings. We first conducted a preliminary review of the existing literature containing published...

... The microstructural development of Zircaloy-4 during recrystallization annealing has been studied in specimens that have undergone relatively small strains (approximately less than 0.15). Although important work has been completed to understand the formation of coarse grains in Zircaloy...

... and for the as-produced materials of commercial heat treatment. zirconium alloys Zircaloy-2 nuclear fuel cladding microstructure heat treatment solubility matrix composition irradiation radiation damage atom probe tomography ZIRCONIUM IN THE NUCLEAR INDUSTRY: 20TH INTERNATIONAL SYMPOSIUM 149 STP 1645...

... Since 2014, the irradiation of material samples manufactured from advanced Russian zirconium alloys has been performed in the VVER-1000 reactor core of Temelin NPP Unit 1, focused on the study of irradiation-induced growth (IIG) and related microstructural changes. The material samples differ...

... from the UK's Sizewell B reactor indicates that hardening may also be distinguishable around flaws if plastic zones are introduced just prior to service in a stress test. thermal aging microstructure hardness embrittlement segregation RADIATION EMBRITTLEMENT TREND CURVES AND EQUATIONS...

... Understanding the creep failure mechanism depends on identifying the effects of applied load on the evolution of long-term microstructures. Creep tests at elevated temperatures are time consuming and expensive. Thus, it is important to optimize the number of tests needed to reduce the time from...

... Researchers have examined a variety of methods for merging various production processes. When coupled with wrought alloys, selective laser melting (SLM) creates a hybrid, more capable production method. This study investigated the tensile characteristics, microstructure, and internal flaws...

... based on their oxidation resistance in air and rate sensitivity to temperature variations. However, data measured according to the recommended procedure are useful beyond making comparisons. Quantification of the rate of oxidation and its effects on microstructure and properties is important for nuclear...

... Specially processed type 316L stainless steel fabricated via laser powder bed fusion (L-PBF) exhibits a substantial reduction in anisotropy characterized by directionally dependent properties and microstructural features. To promote isotropy, standard electro optical systems (EOS) deposition...

... The microstructure of steels for rolling bearings is the single most important parameter in the metallurgy of steels for rolling bearings. The required spheroidize annealing operation for high carbon through hardening steels is reviewed. The microstructure produced in martensitic and bainitic...

... manufacturing routes, such as laser powder bed fusion (L-PBF), are discussed. In E-PBF, a very ductile material behavior results from the prevailing process conditions. Furthermore, an as-built condition almost free of residual stresses is established by E-PBF. Microstructural as well as fracture surface...

.... Microstructural investigation, densification behavior, and hardness values were studied along with an examination of uniaxial tensile properties at room temperature and 649°C. Microstructural investigations showed that grain orientations strictly depended on heat flow direction where the columnar grains were...

... In this study, steels that had undergone different heat treatments resulting in different microstructures were tested under rolling contact fatigue (RCF) and under specific test conditions known to cause white etching cracks (WECs). The test conditions included high slide-to-roll ratios...

... and cleanliness assessment results. The interest in using new techniques such as microwave microscopy to reveal subsurface defects is highlighted, underlining how promising these techniques are. bearing steel ASP 2055 powder metallurgy rolling contact fatigue cleanliness microstructure scanning...

... the statistical behavior of fatigue and fracture of AM materials by addressing the critical variations of novel microstructure, defects, surface roughness, and residual stress. The software accepts data from multiple sources, including data from the open literature and prior material certification programs. Thus...

... Hot isostatic pressing (HIP) is known to improve the fatigue properties of Ti-6Al-4V castings and can result in a significant reduction in porosity. It is often used as a postprocessing step in additively manufactured Ti-6Al-4V-ELI. Microstructure, relative levels of porosity, and particle...

... In this work, the combination of Conventional Dark Field (CDF), Energy Filtered (EF), and High Resolution (HR) Transmission Electron Microscopy (TEM) enabled fine scale characterization of the precipitate microstructures in type 316 Stainless Steel (SS). This steel was irradiated beforehand...

... cycles were required in order to obtain the corresponding significant increase in the hydraulic conductivity. hydraulic conductivity freeze–thaw silty till microstructure macrostructure dry cover clods Mechanical Properties of Frozen Soils STP 1568, 2013 Available online at www.astm.org...

... the near-future prospects scheduled to study He (+H)/dpa synergistic effects on ODS alloys and advanced ceramics and composites. damage Fe–Cr alloy helium ion irradiation microstructure ODS steel synergy SYNERGISTIC EFFECTS OF HELIUM AND DISPLACEMENT DAMAGE Effects of Radiation on Nuclear...

... for the next five years. accelerator co-irradiation damage helium ion microstructure Effects of Radiation on Nuclear Materials: 25th Volume STP 1547, 2012 Available online at www.astm.org DOI:10.1520/STP103948 P. Trocellier,1 Y. Serruys,1 S. Miro,1 E. Bordas,1 H. Martin,1 L. Beck,1 S. Pellegrino...