Dispersion-strengthened alloys

Table 7. Nominal Compositions of Oxide Dispersion Strengthened Alloys, wt %...

Oxidative damage, role of ascorbic acid in preventing, 25 769 Oxidative degradation, 70 682 of gasoline, 72 399-400 Oxidative dehydrogenation, 23 342-343 Oxidative pyrolysis, 27 466 Oxidative stability, of olefin fibers, 77 229 Oxidative stability test, 72 400 Oxide crystal glass-ceramics, 72 641 Oxide-dispersion-strengthened alloys, 77 103-104... 

In the colloidal technique, the size and distribution of a dispersed thoria (Th02) phase is controlled to produce dispersion-strengthened alloys, primarily with nickel as the metallic phase. The so-called TD (thoria-dispersed) nickel has modest strength at room temperature, but retains this strength nearly to its melting point. TD nickel is 3 to 4 times stronger than pure nickel in the 870-1315°C range, and oxidation resistance of the alloy is better than that of nickel at 1100°C. 

Figure 5.82 The strength of different dispersion-strengthened alloys relative to the pure metal strength as a function of relative temperature. Preparation techniques include sintered aluminum powder (SAP), internal oxidation, and salt decomposition. Reprinted, by permission, from A. Kelly, Composite Materials, p. 62. Copyright 1966 by American Elsevier, Inc.

J. S. Benjamin, C. B. Raymond, Nickel-Based Dispersion-Strengthened Alloys, in Mechanical Properties of Metallic Composites Ochiai, S., Ed. Marcel Dekker, 1993. 

Mechanical alloying was originally developed in the late 1960s at the International Nickel Company as a means of manufacturing oxide dispersion strengthened alloys for aerospace applications. Since then, the process of mechaiucal alloying... 

The objective of the cast dispersion reinforcement approach was to develop an affordable, thermally stable, high-volume, oxide dispersion-strengthened alloy. The development of cast nano-oxide dispersion... 

Initially refractory metals were applied mainly in the pure state. Extensive developments mainly driven by US aerospace programs led to a wide variety of alloys now commercially available. The compositions of solid-solution, precipitation- and dispersion-strengthened alloys are given in Table 3.1-108. Tungsten heavy metals and refractory-metal-based composite materials are not included here. 

An ability to build coded heat exchangers in a variety of nickel-based alloys, oxide dispersion strengthened alloys (ODS) and ceramic materials to address the temperature, life and corrosion issues associated with these demanding duties. 

Lowell, Carl E. Deadmore, Daniel L. Whittenberger, Daniel, J. (1982). Long-term high-velocity oxidation and hot corrosion testing of several NiCrAl and FeCrAl base oxide dispersion strengthened alloys. Oxidation of Metals, Vol. 17, Nos. 3, pp. 205-221, ISSN 15734889... 

Lead bismuth eutectic Lead-cooled fast reactor Liquid metal embrittlement Oxide dispersion-strengthened (alloy)... 

Mechanical properties of ferritic oxide dispersion-strengthened alloys... 

Quadakkers W J and Bennett M J (1994), Oxidation Induced Lifetime Limits of Thin Walled, Iron Based, Alumina Forming, Oxide Dispersion Strengthened Alloy Components, Mater Sci Tech, 10, 126-131. 

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