Tech Articles

The Market Development of PM Aluminum (Abstract)

Shuhai Huo, Bill Heath, and Chaman Lall   The application of powder metallurgy (PM) aluminum structural parts is at its early growing stage, despite of some automotive applications.  The market potential for PM aluminum, however, is large.  Growth is expected from the market expansion of the existing applications and new applications, including the replacements of […]

Wear and Fatigue of Sintered Aluminum Materials (Abstract)

Shuhai Huo and William Heath   This study examines the mechanical properties, the wear and the fatigue performance of some sintered reinforced powder metallurgy aluminum materials.  In a contact rolling and sliding test, the aluminum materials showed significant improvement in the wear resistance and the fatigue endurance.  There is limited wear damage to the contact […]

Wear Resistant PM Aluminum Materials for Automotive Applications (Abstract)

Shuhai Huo, Bill Heath, Dave Ryan, Steve Patrick and Jesse Azzato Conventional 2000 series aluminum PM materials have been widely used for pressed and sintered structural parts.  The materials have excellent processing characteristics and reasonable tensile strength.  However, wear resistance, fatigue strength and stiffness of the materials are relatively low.  As many potential applications in […]

The Effect of Sintering Temperature and Atmosphere on the Soft Magnetic Properties of P/M Materials (Abstract)

By Chaman Lall, Ph.D., MPP Vice President – Technology & Applications Development The soft magnetic properties of Powder Metal (P/M) components are essentially dictated by the level of impurities, the resultant density and the sintering practice. The focus here is on the latter, where the metallurgical structure of the product is developed. High temperature sintering […]

Fundamentals of High Temperature Sintering: Application to Stainless Steels and Soft Magnetic Alloys (Abstract)

By Chaman Lall, Ph.D., MPP Vice President – Technology & Applications Development Powder Metallurgy (P/M) parts are being used in increasingly demanding applications and environments which mandate optimum performance from the materials. A potent P/M approach is through the utilization of high temperature sintering. In this review, both the science base and its application to […]

Problems with Heat Treating of P/M Parts

By Howard Ferguson Anyone who buys P/M parts in the heat-treated condition or who performs heat treating in-house knows the difficulty of testing consistent properties and size control. Most commercial heat treaters base their pricing on the weight capacity of their furnace baskets and how many furnace hours it will take to process the load. […]

Problems with Heat Treating of P/M Parts (Abstract)

By Chaman Lall, Ph.D., MPP VP-Mfg. & Technology Components manufactured by powder metallurgy are being used in increasingly demanding applications and environments, which dictates that the optimum performance be obtained from these materials. One aid in the achievement of this goal is the appropriate utilization of high temperature sintering. In this review, the fundamentals and thermodynamic […]