Everything Material in Material Science

The use of true cryogenic treatments in the United States can be followed back to the Watertown Arsenal in Watertown, Massachusetts circa World War II. Since then, the use of cryogenic and sub-zero treatments during conventional heat-treating processes has continued to play an important role in maximizing wear resistance and dimensional stability in high alloy,…

While X-Ray Fluorescence (XRF) spectroscopy provides quantitative elemental composition of materials, it cannot distinguish between identical atoms in different crystalline phase arrangements. However, we can confirm both the elemental and phase content of ceramic materials with certainty by combining XRF analysis with powder X-Ray Diffraction (XRD) analysis. Watch this webinar from NSL Analytical Services and Rigaku, a leader…

Even very low levels of moisture can have significant impacts on metal powder flow, consolidation and surface oxidation, particularly during powder reuse. In this webinar, we examine how Karl Fischer titration is applied to precise moisture analysis in metal powders for additive manufacturing. Although several techniques can be applied to the measurement of water in…

Fatigue has always been a major issue in designing for transportation, particularly airplanes. This webinar presented three airplane failures from NTSB and British Ministry reports that were the result of fatigue: the DeHavilland Comets in 1954, Aloha 243 in 1988, and Southwest 1380 in 2018. It also included a brief discussion of fatigue and a…

Optical microscopy has been a staple of metallurgical analysis to determine cleanliness, grain structure, surface conditions, porosity, and more. In this Tech Talk webinar, NSL metallurgists Dave Kovarik and Rebecca Stawovy explain the history of metallurgical microscopes and how they work. You will also learn the features of modern-day microscopes and how they are used…

The analysis of particle size distributions is widely accepted as a critical requirement in many metal and ceramic processes. In this webinar, we discussed the pragmatic issues associated with the most readily-available techniques and which complementary methods might be insightful for certain applications, without having to develop a new historical dataset of particle size information….

The impacts of porosity in additively-manufactured (AM) specimens on mechanical properties are well-known. In this webinar, NSL’s Director of Technology Development, Dr. Dave van der Wiel, will discuss the various techniques commonly used to characterize the porosity and density of AM bodies. You will learn how scientists draw conclusions by analyzing and interpreting resulting data….

A failure is when a part does not perform as the customer expects, or the part fails an internal test. Metallurgical failure analysis can be a valuable tool for determining what the next step should be to solve a problem. This webinar will highlight particular metallurgical tests that may be performed in failure analysis such…

In contrast to conventional static funnel flow techniques, dynamic avalanche rheometry can generate highly reproducible data that correlates very well with various metal powder properties. The technique is included in several joint ISO/ASTM work items and an ASTM interlaboratory study, reflecting the drive toward standardization of new powder flow techniques. This webinar reviewed the use…

If a part does not perform as it is expected to, Metallurgical Failure Analysis may be a valuable tool for solving the problem. In this first webinar of our two-part series, you will learn what failure analysis is and how it is performed. What to Expect from a Metallurgical Failure Analysis: Overview This webinar has…