... that contribute to the formation of corrosion pits were investigated. Four different sucker rod materials were evaluated with respect to (1) chemistry, (2) nonmetallic inclusion content and (3) microstructural investigation including banding severity. It was concluded that microstructural banding has a negative...

... been significantly studied and its HE resistance is now better assessed based on its microstructure. Less work has been performed on some of the other PH nickel alloys, although, their HE resistance is better appreciated from recent literature data. The results published at NACE Corrosion 2019 from...

...Microstructural Characterization of As-built Samples The as-built X-Z plane microstructures of Samples A, B and C, built with speed functions 75, 98 and 120, respectively, at a region about 100 μm from the top surface of the build, are presented in the back scattered electron (BSE) SEM images...

... coupons were cross sectioned from the as-fabricated materials. Microstructural and phase characterization of the composites were accomplished by optical and scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction. The corrosion behavior of these composite materials was evaluated...

... of the produced microstructure and overall surface condition of the product is important to achieve the necessary mechanical properties and corrosion resistance. While electrochemical methods are often utilized to characterize the corrosion properties of additively manufactured samples, the methods are typically...

...Microstructure Metallography Replication FMR Sigma phase embrittlement stress relaxation cracking creep INTRODUCTION Abstract During plant shutdown maintenance, some components cannot be removed out of service immediately for metallurgical examination due to high cost involved and loss...

... multicomponent alloys microstructure corrosion products INTRODUCTION High entropy alloys (HEAs) are a new class of metallic materials changing the traditional approach of alloys definition. HEAs are multi-component alloys which consist of equiatomic mixtures of five or more elements^{[ 1 - 5 ]}. Due...

... with regard to their chemical composition and microstructure. The content of alloying elements in the wing is nearly similar. The light microscopic images in Figure 4 show the typical microstructure in the cast state of the wing tip, the wing center and the wing root, respectively. Numerous theoretical...

...Macroscopically, HAC is a consequence of the simultaneous presence of a high stress or stress intensity (e.g. at locations like threaded connections, and combining service and residual stresses), a susceptible microstructure (e.g. secondary phases, grain boundaries precipitates) and a hydrogen...

... compatibility. Using advanced Positive Material Identification (PMI) device to verify the chemical composition of the received material, results show that the material is questionable. As a precise test to verify heat treatment condition, microstructure analysis test (metallography) conducted to confirm...

... are discussed, as is the need for supplementary testing, in particular quantitative microstructural evaluation. super duplex welding shielding gas backing gas heat input microstructure corrosion resistance weld procedure qualification welding guidelines INTRODUCTION For many development of a Welding...

... as a measure of this resistance remains the simplest and most widespread. Bainitic microstructure with very low ferrite content and small grain size of the primary austenite are effective in improving the CVN impact toughness at low temperature after min and max PWHT. The aforementioned microstructure...

... chromium-manganese austenitic stainless steels as well as 17-4PH in the 110ksi-to-130ksi yield strength range (34 - 35 HRC max). Complementarily, microstructure analyses and electrochemical tests, among other standard tests, were applied to all alloys for comparison purposes and were used to explain...

... with vacuum arc remelting procedure was tested for corrosion in geothermal environment in the Reykjanes Geothermal Power Plant in Iceland. Microstructural and chemical composition analysis of the material was performed before and after testing in the geothermal steam with an electron scanning microscope (SEM...

... down further corrosion. Temperature, CO₂ partial pressure and pH are the main environmental parameters controlling FeCO₃ properties. However, the combined effects of flow and material microstructure on the formation of FeCO₃ have not been well documented...

...Abstract Titanium-based composites have the potential to be utilized in a range of applications where mechanical strength and corrosion resistance coupled with low density are advantageous. Lightweight structural composites were processed using a melt approach. The microstructures of these novel...

... a microstructure check (to determine the phase balance of the steel and to see if the microstructure contains IMP or not), a corrosion test ^{1 , 2} (usually using ferric chloride solution), and Charpy impact testing to check the level of toughness of the part. THE CASE OF A SUBSEA FLOW CONTROL METER...

... by a magnetostrictive or piezoelectric transducer, driven by a suitable electronic oscillator and power amplifier. Figure 1 shows a photograph of such an apparatus. Abstract An investigation was carried out to study the effect of the microstructure of nickel-aluminum-bronze alloy (UNS C95520) on its cavitation...

... in the Reykjanes Geothermal Power Plant in Iceland. Microstructural and chemical composition analysis of the material was performed before and after testing in the geothermal steam with an electron scanning microscope (SEM) and X-ray Energy Dispersive Spectroscopy (X-EDS). A weight loss method was also used...

... on the properties achievable for a centrifugally cast low carbon 46Ni-35Cr-9Mo alloy tube of 4500 mm length and 55 mm wall thickness. The phase formation after the solidification as well as the influence of heat treatment on the microstructure development is examined. The influence of the various heat treatment...