This work compares the mechanical and corrosion properties of 316L steel manufactured by Laser Powder Bed Fusion (LPBF) post treated Hot Isostatic Pressing (HIP) to wrought 316L. HIP is often used default on LPBF components reduce porosity obtain best properties, however, if temperatures are too high, there a risk reducing strength resistance. The purpose this was investigate parameters understand trade-off in properties. By choosing various (700 °C, 1125 1200 °C), pressures (100 MPa, 137...

Powder recycling refers to the reuse of unused powder feedstock in laser bed fusion (PBF-LB/M) process. This approach is crucial for economic viability and sustainability PBF-LB/M, as accounts a large proportion total production cost. However, through recycling, physical chemical properties are liable change. variation can subsequently lead knock-on effects on mechanical fully built component. research has investigated changes that occur stainless steel 316L (SS316L) result recycling....

In situ time-lapse optical microscopy was used to examine the microstructural corrosion mechanisms in three zinc-magnesium-aluminium (ZMA) alloy coated steels immersed 1% NaCl pH 7. Preferential of MgZn(2) lamellae within eutectic phases observed all ZMA alloys followed by subsequent dissolution Zn rich phases. The total extent and rate corrosion, measured using image analysis scanning vibrating electrode technique (SVET) estimated mass loss, decreased as Mg Al alloying additions were...

A combination of in-situ Scanning Vibrating Electrode Technique (SVET) and time-lapse immersion optical microscopy (TLM) is used to investigate the effect microstructural refinement on patterns localized corrosion affecting zinc-aluminum-magnesium (ZAM) galvanized coatings steel. Model ZAM comprising Zn-2.7 wt% Al-1.5 Mg are produced 0.7 mm mild steel sheet by hot dipping, resulting coating microstructure systematically refined increasing cooling (solidification) rate from 5°C.sec−1...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCoffee Aroma, Mass Spectrometric Determination of Volatile Components from Ground CoffeeCharles Merritt Jr., M. L. Bazinet, J. H. Sullivan, and D. RobertsonCite this: Agric. Food Chem. 1963, 11, 2, 152–155Publication Date (Print):March 1, 1963Publication History Published online1 May 2002Published inissue 1 March 1963https://pubs.acs.org/doi/10.1021/jf60126a016https://doi.org/10.1021/jf60126a016research-articleACS PublicationsRequest reuse...

Abstract Zinc and zinc alloy galvanized steel is used increasingly for structural cladding, automotive, domestic appliance applications. In assessing the different galvanizing coatings, it important to understand nature of corrosion reactions occurring on metal surfaces. To this end, scanning vibrating electrode technique (SVET) has been study effect variation in metallic coating localization intensity bare surfaces when immersed aerated 0.1% sodium chloride (NaCl). The samples comprised...

The effect of a variety metal-chlorides additions on the melting behavior and thermal stability commercially available salts was investigated. Ternary comprised KNO3, NaNO2, NaNO3 were produced with chlorides (KCl, LiCl, CaCl2, ZnCl2, NaCl MgCl2). Thermogravimetric analysis weight loss experiments showed that quaternary salt containing 5 wt% addition LiCl KCl led to an increase in short term compared ternary control salts. These allowed remain stable up temperature 630 °C. Long upper 50 A...

Additions of 1 wt.% Ca were made to Zn (Zn-1Ca) generate favourable chemical conditions during corrosion for enhanced performance phosphate inhibitors. Zn-1Ca displayed a reduced rate in 0.17 M NaCl measured using the Scanning Vibrating Electrode Technique and polarisation. In-situ timelapse microscopy SEM-EDS demonstrated that intermetallic CaZn13 preferentially corroded releasing Ca2+ increased product precipitation, cathodically deactivating system. × 10−3 mol dm−3 additions decreased...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImproved Separation in Gas Chromatography by Temperature Programming. Application to Mercaptans and SulfidesJ. H. Sullivan, J. T. Walsh, Charles. MerrittCite this: Anal. Chem. 1959, 31, 11, 1826–1828Publication Date (Print):November 1, 1959Publication History Published online1 May 2002Published inissue 1 November 1959https://pubs.acs.org/doi/10.1021/ac60155a042https://doi.org/10.1021/ac60155a042research-articleACS PublicationsRequest reuse...

The optimization of the interface between back contact and absorber is one main challenges to improve electrical behavior further enhance efficiencies Cu2ZnSn(S,Se)4 (CZTS(e)) solar cell devices. In this work, Mo/SixNy thin films with various film thicknesses were introduced as an interfacial layer explore its influence on optoelectronic properties pure sulfide CZTS cells. SixNy was deposited through plasma enhanced chemical vapor deposition (PECVD). thickness stress controlled adhesion...

Variability in the mechanical properties of steel strip has a significant effect on structural performance manufactured components. This study provides statistical analysis variability yield strength, Ultimate Tensile Strength (UTS) and elongation to failure by examining chemistry cast rolling conditions strip. type data can play key role development robust reliable new structures, as well aiding process control specialists minimise during production. The grade under investigation is Hot...

In an earlier paper by Singley and Black (“Hydrolysis Products of Iron (III),” Journal AWWA, 59:1549 (Dec. 1967)) the hydrolysis iron (III) in dilute aqueous solution was studied alkalimeteric potentiometric titrations. The data were analyzed use a regression analysis to obtain instantaneous concentration quotients for series reactions. this paper, has been reanalyzed yield new set quotients.

In order to understand the relationship of hydrolysis reaction reactions other nucleophilic or basic groups with metal ion, a series studies were initiated overall objective determining composition these complexes under conditions concern in water. These included very dilute solutions, and times that may not permit equilibrium be reached. The system initially studied was simplest possible, containing only aluminum, hydrogen, hydroxide, perchlorate ions. procedures used essentially same as...

The scanning vibrating electrode technique is used to study the localized corrosion of unpolarized zinc in near-neutral aqueous sodium chloride electrolyte varying concentration [NaCl]. As [NaCl] reduced from 1% (w/v) 0.0005% morphology attack changes large, irregular, areas anodic dissolution and cathodic oxygen reduction, a regular array pits set an otherwise surface. In dilute ([NaCl] < 0.01%) total (area averaged) current density, J, (A·m−2), obtained numerical area integral SVET density...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhosphate Fertilizers as Possible Source of Phosphorus for AnimalsH. F. Fraser, T. C. Hoppe, J. H. Sullivan, and E. R. SmithCite this: Ind. Eng. Chem. 1943, 35, 10, 1087–1090Publication Date (Print):October 1, 1943Publication History Published online1 May 2002Published inissue 1 October 1943https://pubs.acs.org/doi/10.1021/ie50406a014https://doi.org/10.1021/ie50406a014research-articleACS PublicationsRequest reuse permissionsArticle...

AbstractAbstractAn investigation has been carried out to assess the zinc runoff from a variety of galvanised materials over 16 months at industrial/marine Port Talbot weathering site. Over exposure, bare zinc, and Electrozinc have highest levels (4·38 4·20 g m-2) followed by general steel substrates, i.e. hot dip (HDG) (0·15 wt-%Al) (2·87 iron intermetallic (galvanneal, 2·36 m-2). Galvanneal (IZ) higher initial rate than HDG due presence iron/zinc in coating that promotes anodic dissolution....