In situ monitoring of the melt pools in laser powder bed fusion (LPBF) has enabled elucidation process phenomena. There been an increasing interest also using pool to identify anomalies and control quality manufactured parts. However, a better understanding variability relation incidence internal flaws are necessary achieve this goal. This study aims link distributions dimensions signal charact...

The impact of moisture on flowability and spreadability is discussed. More notably we also present research the built nickel-base material. One lot a newly opened Hastelloy X (HX) L?PBF powder was split into two equal batches. batch moisturized using programmable climate chamber, other untreated. We bars with both batches for mechanical testing, in an EOS M100, cold build plate. content batches...

Laser powder bed fusion (LPBF) was used to consolidate powders of a Ni-Cr-Fe-Mo alloy (Hastelloy X) blended with 1 wt% Y2O3 nanometric powders. The nearly-dense, crack-free specimens, and without oxide dispersion strengthening (ODS), exhibit high-aspect ratio grains, aligned in the build direction strong texture: 〈001〉 is along both laser scanning direction. Creep tests performed at 950 °C, com...

Abstract The primary coolant circuit of the high temperature gas-cooled reactor (HTGR) contains trace impurities. A nickel base alloy would corrode when exposed to an atmosphere at a and for long time. protective oxide scale formed by chromium is important factor prevent severe corrosion alloys. Corrosion tests were conducted on Inconel 617, Incoloy 800H, Hastelloy X, T-22, which are commonly u...

The presence of precipitates in metallic materials affects its durability, resistance and mechanical properties. Hence, its automatic identification by image processing and machine learning techniques may lead to reliable and efficient assessments on the materials. In this paper, we introduce four widely used supervised pattern recognition techniques to accomplish metallic precipitates segmenta...

Gelişen teknoloji ile sağlık, nükleer santraller, medikal onkoloji, sanayi ve teknoloji, kontak lensler gibi birçok alanda iyonlaştırıcı radyasyonun kullanımı bununla birlikte canlıların radyasyona maruz kalma ihtimalleri artmaktadır. Radyasyonun zararlı etkilerinden korunmanın temel unsurlarından bir tanesi zırhlamadır. Bu çalışmada seçilen 14 Ni tabanlı süperalaşımın (Nimonic 901, Alloy 10, H...

http://dx.doi.org/10.1016/j.ijplas.2014.09.001 0749-6419/ 2014 Elsevier Ltd. All rights reserved. ⇑ Corresponding author. Tel.: +1 217 333 2242; fax: +1 217 244 0720. E-mail address: [email protected] (J. Lambros). 1 Present address: Applied Materials Inc., Sunnyvale, CA, United States. 2 Present address: Intel Corporation, Hillsboro, OR, United States. B. Swaminathan , W. Abuzaid , H. Sehit...