Search Results for galvanizing treatment

Outdoor enclosures for telecom equipment are often constructed from powder-coated aluminum, but with appropriate surface treatments, hot and cold rolled steel can serve in the same capacity at a lower cost. This article, the first of a two-part series, discusses the intrinsic corrosion behavior of hot and cold rolled steel and how it can be modified through galvanizing and aluminizing treatments. Part 2, scheduled for the October 2012 issue of AM&P , covers nonmetallic surface treatments and presents corrosion test results.

Outdoor enclosures for telecom equipment are often made from aluminum, but with the protective treatments described in this two-part article series, inexpensive steels can serve in the same capacity. Zinc-based galvanizing and aluminizing treatments, which were presented in Part 1, may be used alone or together with corrosion-resistant paints, pretreatments, and sealants described here. This article also assesses the corrosion resistance and adhesion properties of different combinations of steels, coatings, and pretreatments by means of salt fog spray testing.

A new high-strength steel developed for cold stamping addresses the challenges presented by materials traditionally used to manufacture electric vehicle components.

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.

Chemical vapor deposition (CVD) of pyrolytic chromium carbide coatings (PCCCs) is proving to be a viable alternative to hard chrome plating used on cylinder piston group components. This article discusses the development and optimization of a CVD process for depositing PCCCs on piston rings and cylinder sleeves. It evaluates the coatings based on friction, wear, and adhesion properties in comparison with coatings produced by other methods.

This article presents the results of a study in which stress corrosion crack growth was examined in situ in aluminum alloy samples. Precracked test specimens were mounted in a customized load frame and a scanning vibrating probe was used to map potential gradients induced by electrochemical coupling current around the crack tip, mouth, and surrounding surfaces. The authors describe the test setup and present and analyze their findings.

Efforts are underway in every sector of the scientic community to explore and develop possible strategies and solutions to counter sea level rise and climate change. Near-term materials science implications include improvements to corrosion-resistant materials and coatings.

This article provides a brief review of thermal spray technology along with examples of where and how it used in steelmaking equipment and operations.

A scientific study of two copper coins from 1851 and 1853 reveals well-preserved symbols of a growing, newly independent Chile nation.

The National Research Council of Canada has teamed up with industrial partners to investigate the challenges of aluminum lightweighting. Project coverage areas include manufacturing of advanced aluminum components, assembly of aluminum and multi-material components, and durability and performance evaluation and solutions.

New FDA guidance for Nitinol used in medical devices includes clarification on the determination of safety factors, the requirements for corrosion testing, and proper labeling of potentially harmful elements.

The U.S. Naval Academy is expanding awareness about corrosion-related material degradation, its effects on force readiness, and efforts to manage it. One of the goals of the Naval Academy’s corrosion education efforts and corrosion-related STEM activities is to teach students to understand materials degradation processes and prevention methods for aging defense systems.

Given the demonstrated antimicrobial properties of copper, it is incumbent upon materials scientists to design potent antimicrobial copper-containing stainless steels as an economical option.

A new ISO standard could help spur development of new surface treatments and innovative products that can help defend against harmful bacteria and biofilms. This article describes the successful development and adoption of a new standard, ISO 4768:2023, that addresses measurement of anti-biofilm activity on plastic and other nonporous surfaces.

The unique metallurgy and microstructure of Cu-Ni-Sn spinodal alloys provide a combination of strength, toughness, hardness, and corrosion resistance, suiting them for applications ranging from bearings, bushings, and friction surfaces in all sorts of machinery to electrical connectors and EMI shielding gaskets.

A look at Monel after decades of exposure to the environment shows more work is needed to address the lack of scientific research and information in the conservation literature. Three case studies are presented related to the analysis of Monel artifacts.

Understanding both the origin and procedures for removing inclusions in magnesium alloys results in castings with enhanced mechanical and corrosion properties. This article provides an overview of typical inclusions found in magnesium and its alloys, various techniques used to determine inclusion content, and methods employed to reduce inclusions and their influence on properties.

To learn about the important connection between mechanical engineering and materials science, we turned to five experts with backgrounds in both fields for insight. The panelists share their perspectives on how the two disciplines informed their careers, which types of design challenges can be solved with materials information, and how ASM can improve that connection by leading with a “unity of disciplines” approach. The panelists are Scott Carpenter, Vactronix Scientific; Bertrand Jodoin, University of Ottawa; Vistasp Karbhari, The University of Texas at Arlington; Marina B. Ruggles-Wrenn, Air Force Institute of Technology; and Judith A. Todd, The Pennsylvania State University.

The early days of aluminum development occurred between 1886 and 1948, when the aluminum and automotive industries were both new and undergoing rapid changes in technology and scales of production.

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.