SAE Metallic Materials Testing Laboratories, is a technical Subcommittee in SAE’s Aerospace Materials Systems Group with the responsibility to develop and maintain material specifications and other SAE technical reports for Aerospace Metallic Materials Testing Requirements. The Subcommittee works in conjunction with related bodies such as the Performance Review Institute (PRI), and regulatory authorities such as FAA and EASA. The objectives of MTL are to: • Develop Aerospace Specifications (AS) for the control of materials testing specific to aerospace applications. • Provide a forum for the exchange of technical information related to aerospace materials testing. • Further the adaptation of industry sponsored material specifications through coordination with PRI and associated organizations. • Establish a system to ensure aerospace specifications are controlled.
Manganese oxides show high catalytic activity for CO and HC oxidation without including platinum group metals (PGM). However, there are issues with both thermal stability and resistance to sulfur poisoning. We have studied perovskite-type YMnO3 (YMO) with the aim of simultaneously achieving both activity and durability. This paper describes the oxidation activity of PGM-free Ag/i-YMO, which is silver supported on improved-YMO (i-YMO). The Ag/i-YMO was obtained by the following two methods. First, Mn4+ ratio and specific surface area of YMO were increased by optimizing composition and preparation method. Second, the optimum amount of silver was supported on i-YMO. In model gas tests and engine bench tests, the Ag/i-YMO catalyst showed the same level of activity as that of the conventional Pt/?-Al2O3 (Pt = 3.0 g/L). In addition, there was no degradation with respect to either heat treatment (700°C, 90 h, air) or sulfur treatment (600°C to 200°C, total 60 h, 30 ppm SO2).
For products made of metal, many problems occur because people overlook metallurgy when making design, manufacturing, and supplier decisions and when working on quality problems. Created for design, quality, and manufacturing engineers, the 11 metallurgy courses in this bundle teach practical metallurgy concepts and how to apply them to real-world problems and decisions. Online Courses Principles of Metallurgy Learn the metallurgical fundamentals of how alloying, heat treatment, and cold working are used to modify metal strength.
This online course teaches the basic microscopic structures present inside of metals, how these structures and metal composition influence metal strength, and how these structures can be modified using common manufacturing processes to obtain specific mechanical properties. Several examples are presented to demonstrate how common alloying and manufacturing methods are used to modify the microscopic structures and properties of metals. It includes twelve modules that are five to 25 minutes in length, followed by a quiz.
Electroplating involves the deposition of thin layers of metal on metal components and metal stock. There are several uses for electrodeposited coatings including cosmetic, corrosion resistance, and wear resistance. Knowledge about electroplating and electroplated coatings is important for product design, preventing and solving quality problems, and evaluating supplier capabilities and quality.
This online course teaches the phases and microstructures that form in steels, their effects on steel properties, the microstructure changes that occur when steel is heated and cooled, the effects of carbon content and cooling rate on the microstructures that form. Also, how to read the iron-carbon phase diagram will be discussed. All this information is applicable to understanding the effects of steel heat treating processes and heat treating process parameters on the microstructure and properties of heat treated plain carbon, low-alloy, and tools steels. The course is divided into six modules followed by a quiz.
This specification establishes the requirements for computer monitored shot peening of part surfaces by impingement of media, including metallic, glass, or ceramic shot. Computer monitored peening is intended to provide a method of process observation, traceability, and response for all process input settings, in real time, during the entire peening process to ensure with objective evidence, the desired process outputs. Shot peening in accordance with AMS2432 meets or exceeds the requirements of AMS2430. This specification should be used on all Flight Safety or Critical Safety Items when new engineering drawings are created or legacy drawings are revised.
This online course discusses common steel case hardening processes and how they are used to modify the surface layers of steels to obtain specific mechanical properties. Participants will learn about the process parameters and how they affect case composition, depth, microstructure, and properties. The course takes one hour to complete.
This online course teaches about the metallurgy of the following steel through hardening processes: quench and temper, martempering, and austempering. Participants will learn about the effects of heat treating temperature and cooling rate on steel microstructure and properties, and the effects of the interaction between heat treating process parameters and steel composition on through hardened steel microstructure and strength. This course takes one hour to complete.
This online course teaches about the microscopic changes that take place in a precipitation strengthened alloy and their effects on the properties of the alloy. The effects of the different heat treating steps (solution treatment, quench, and aging) and heat treating process parameters (solution treatment temperature and time, quench rate, and aging temperature and time) on the alloy microstructure and the effects on alloy strength are discussed. The course is divided into five modules followed by a quiz.