The newly developed TMW disk superalloy exhibits better overall mechanical properties in the intended service temperature region (650-750 °C) than the most advanced cast & wrought disk alloy U720Li. Clarification of the underlying mechanisms is beneficial for designing advanced superalloys. Among the TMW alloys, TMW-4M3 has the best tensile strength and creep resistance. In this study, tensile ...

Although nickel-based superalloys are widely used in the industry, their response to shock loading is still rarely investigated. Here, impacts of laser-launched flyers were study dynamic behavior a Rene 65 superalloy under pressures about 10 GPa at very high strain rates 6 s −1 . Three types samples, wrought or additively manufactured (laser powder bed fusion) and subjected different heat treat...

Corrosion reduces the lifetime of municipal solid waste incineration (MSWI) superheater tubes more than any other cause. It can be minimized by the careful selection of those materials that are most resistant to corrosion under operating conditions. Since thousands of different materials are already known and many more are developed every year, here the selection methodology developed by Prof. ...

R ESULTS of tensile tests made with the nonprecious metals, notably aluminum, have proved that section size is not a factor in determining proportional limit, provided the grain size is not excessive.' However, these tests were made on specimens varying from 0.500 to 0.050 inches in diameter, and wrought dental gold wires, in which the diameter is as small as 0.030 inches, are often used. It is...

A key element for realizing long term sustainable use of any metal will be a robust secondary recovery industry. Secondary recovery forestalls depletion of non-renewable resources and avoids the deleterious effects of extraction and winning (albeit by substituting some effects of its own). For most metals, the latter provides strong motivation for recycling; for light metals, like aluminum, the...

An in-situ characterization technique combining mechanical testing inside a scanning electron microscope (SEM) with electron backscatter diffraction (EBSD) analysis was employed to study the tensile deformation behavior of Nd-containing Mg alloys over the temperature range of 50-250°C. EBSD data were collected before and after the experiments. The active slip and twinning systems were identifi ...

Cu-Ni castings and wrought pipes nominally contain 1% Fe to 2% Fe, which is added to improve the Cu-Ni alloy's erosioncorrosion resistance. After fabrication, Cu-Ni products are solution heat-treated to dissolve the iron uniformly andform a single-phase alloy. During welding, however, iron can precipitatefrom solid solution onto grain boundaries in the heat-alfected zones (HAZ). During seawater...