Search Results for corrosion progression

Optimizing the integrity and performance of highly engineered surfaces and structures requires the ability to visualize and understand material behavior over multiple length and time scales from a three-dimensional perspective. The Electron Microscopy Centre at the University of Manchester is equipped for such work as demonstrated in problem-solving scenarios involving multiscale imaging and analysis of the progression of intergranular corrosion in Al alloy 2024, the catalytic effect of silver nanoparticles in seawater, recrystallization in a volume element of a bronze alloy, and defect progression on graphene surfaces.

In recognition of ASM International's 100-year anniversary, AM&P highlights historic events and technological advancements that occurred over the course of those years. This issue extends he timeline from 1934 to 1943, which includes the invention of the first gas turbine for jet propulsion, the first practical electron microscope, and the exhibit of the ultramodern S-1 locomotive at the World Fair.

Structural intermetallics offer a number of attractive choices to address an urgent need for materials that can endure harsh environments for extended periods. This article describes current commercial applications for intermetallic materials and work to develop new alloys and applications.

A pin used to hold the side plates together in a conveyor chain system fractured and failed, prompting a metallurgical failure analysis. This case study reviews the analytical steps and conclusions from the study of the failed pin.

Advanced materials engineering is being used to solve component life cycle improvement challenges in extremely harsh working conditions. This article discusses examples from various industries where new materials and surface modifications are used to extend the useful life of engineering components and equipment.

Simulation of components and joints made of hybrid materials enables innovative designs for corrosion protection in automotive applications. This article gives examples of simulations used to gain insight into the corrosion behavior of riveted joints.

Launching an aluminum vehicle into production is a far greater challenge than building a fleet of prototypes. This installment in the series reviews progress made in the 1990s.

The aerospace industry could benefit from recent progress in making near net shape titanium extrusions for applications beyond the long structural components of an aircraft.

News about ASM members, chapters, events, awards, conferences, affiliates, and other society activities. Topics include: ASM strategic plan progress report; volunteer profile for Tom Steigauf; professional profile for Beth Matlock.

Heat treaters are discovering new opportunities in the rapidly expanding field of additive manufacturing. This article describes some of the opportunities and challenges for heat treaters in this technology area.

This article is a brief update on work by the Center for Heat Treating Excellence at Worcester Polytechnic Institute in Massachusetts to study the best way to heat treat additively manufactured parts for optimum performance. A particular focus of the CHTE research is on titanium and titanium alloys, cobalt alloys, and stainless steels for biomedical applications.

The development of polymers, traditionally neglected in fusion materials research, is crucial to the success of commercial fusion energy. This article provides an overview of the materials science and technology challenges that will need to be addressed to develop the mechanically “soft” materials that will serve functional needs in a fusion pilot plant.

News about ASM members, chapters, events, awards, conferences, affiliates, and other society activities. Topics include: Global Materials Platform PRO; updates from Interim Executive Director Carrie Wilson and Foundation Chair Julio Maldonado; emerging professionals symposium addresses mentorship; new course releases on Metal Additive Manufacturing of Thermal Processing; Gujarat Chapter holds pultrusion workshop; National Academy of Engineering honors ASM members; In memoriam for Günter Petzow.

News about ASM members, chapters, events, awards, conferences, affiliates, and other society activities. Topics include: ASM announces the nominees for ASM vice president and trustee for 2017-18 and three members of the Board of Trustees for 2017-2020; profiles for nominated officers; update on the ASM Renewal from ASM President William E. Frazier; the ASM Failure Analysis Society announces nominees for officers and directors; professional profile for Margaret Flury.

An industry pioneer shares a historical overview of the early days of single crystal superalloy development.

This article provides a brief overview of the many ways that artificial intelligence and machine learning are being used for materials and manufacturing research. Several case studies show how the discovery, development, and deployment of novel materials are being dramatically accelerated through automation and data-driven models.

Industry consolidation, lubricant concerns, and springback issues continued to test automakers and materials producers as they worked toward aluminum-intensive vehicles in the first decade of the twenty-first century.

News about ASM members, chapters, events, awards, conferences, affiliates, and other society activities. Topics include: ASM affiliate societies name committee chairs for the 2019-2020 term; ASM President Zi-Kui Liu discusses the ASM response to Materials 4.0 and the Materials Genome Initiative; progress report on the ASM strategic plan; professional profile for Danielle Cote.

Although stress corrosion cracking (SCC) accounts for just a fraction of all engineering failures, its prevention is a major problem, particularly in the aerospace industry. Recent archaeometallurgical studies show that stress corrosion cracking occurred in ancient metallic artifacts. This article describes investigations that revealed definite evidence for SCC in ancient silver and bronze alloys and a probable case of SCC in low-carat (13K) gold. Diagnostic methods included visual inspection, metallography, and fractography.

Many broken parts look similar at a glance, but examination of the failed part using advanced equipment and methods such as scanning electron microscopy (SEM) reveals much more about the origins of the failure. This article presents a case history involving SEM analysis of a trailer hitch fatigue failure.