1 - 10 of 17 articles
Frictional behavior of two sheet materials, aluminum-killed drawing-quality steel (AKDQ) and electro-galvanized (zinc) drawing-quality steel (AKDQ-EG), is examined under conditions of varying die material, die radius, crosshead speed, and lubricant. Tests are conducted using a special apparatus...
High-strength monolithic mullite ceramics were prepared from commercial-grade power by carefully controlled processing of the powder followed by pressureless sintering at 1700 °C. Mullite powder was mechanically and chemically dispersed, ball milled, and screened prior to slip casting. Specimens...
Quality is a very important feature in the manufacturing of products such as tube. Nonhomogeneous deformation, common to most metalforming operations, leaves the product in a cold worked state, resulting in a pattern of residual stresses. Depending on the nature and magnitude of residual...
In the last decade, powder metallurgy (P/M) technology has made marked advances in competitive manufacturing. P/M offers design opportunities that are not possible with other methods, as well as significant cost savings. In the automotive industry, P/M forgings are being developed for...
Both coal combustion and coal gasification processes now require careful control of sulfur-bearing effluents. These needs have stimulated an extensive amount of research and development (R & D) on simple and complex sulfur sorbent materials. The application of thermodynamics in the study of the...
As part of a program to provide reassurance that the cobalt- base superalloy Haynes® Alloy 188 can adequately contain a LiF- CaF2 eutectic thermal energy storage salt, 4900- and 10,000- hr exposures of Haynes® Alloy 188 to LiF- 22CaF2, its vapor, vacuum, and air at 1093 K have been undertaken....
In the last decade, powder metallurgy (P/M) technology has made marked advances in competitive manufacturing. P/M offers design opportunities that are not possible with other methods, as well as significant cost savings. The processing parameters, material characteristics, individual stages of...
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