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rare earth metals

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
...-resistance alloys, superalloys, refractory metals, low-melting-point metals, reactive metals, precious metals, rare earth metals, and metalloids or semimetals. It also provides a brief summary on special-purpose materials, including uranium, vanadium, magnetic alloys, and thermocouple materials. light...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850610
EISBN: 978-1-62708-260-0
... Abstract This appendix contains tables that list the composition and capabilities of etchants that reveal the microstructure of metals and alloys, including aluminum, chromium, cobalt, copper, lead, magnesium, molybdenum, nickel, niobium, palladium, platinum, radioactive metals, rare earth...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060073
EISBN: 978-1-62708-261-7
... (a) Rare earth metal such as Ce, Nd etc., or La. Source: Ref 4.2 Minerals are frequently brightly colored, iridescent, and attractive. Because of such attractiveness, ancient man (and modern miners as well) collected mineral samples. For example, a typical copper-containing sulfide mineral...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240303
EISBN: 978-1-62708-251-8
... Alnico 8 34Fe, 7Al, 15Ni, 35Co, 4Cu, 5Ti 0.76 (7600) 125,000 (1550) 36 (4.5) 860 (1580) … Sintered ferrite 3 BaO · 6Fe 2 O 3 0.32 (3200) 240,000 (3000) 20 (2.5) 450 (840) 10 4 Cobalt rare earth I SmCo 5 0.92 (9200) 720,000 (9000) 170 (21) 725 (1340) 5.0 × 10 −7 Sintered...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290023
EISBN: 978-1-62708-306-5
..., quenched-and-tempered steels, high-alloy steels, stainless steels, and many of the cast irons. The SMAW process is also used to join nickel and its alloys and, to a lesser degree, copper and its alloys. It can be, but rarely is, used for welding aluminum. In addition to joining metals, the SMAW process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170432
EISBN: 978-1-62708-297-6
... is rarely used for engineering applications without being alloyed with other metals. The vast majority of the alloy systems currently being commercially produced contain aluminum, manganese, zinc, zirconium, rare earths, and silver in order to obtain the strong, light weight alloys needed for structural...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170614
EISBN: 978-1-62708-297-6
... Platinum-cobalt Hard ferrites, including barium ferrite (BaO · 6Fe 2 O 3 ) and strontium ferrite (SrO · 6Fe 2 O 3 ) Cobalt-rare earth alloys Neodymium-iron-boron alloys Of the metallic materials listed above, the Alnicos, cobalt-rare earths, and neodymium-iron-boron alloys are by far...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230019
EISBN: 978-1-62708-298-3
... the only beryllium-bearing mineral of industrial importance. It contains up to 5 wt% Be and has been found in commercially acceptable form in many pegmatites. However, these in turn are exposed on less than a small fraction of 1% of the Earth’s crust and rarely include over 1 wt% beryl. Because beryl...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080097
EISBN: 978-1-62708-304-1
... Abstract This chapter discusses the conditions under which carburization and metal dusting occur. It describes the chemical reactions and thermodynamic relationships that drive carburization and metal dusting attack and the factors that determine the amount of damage that metals and alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2016
DOI: 10.31399/asm.tb.ascaam.9781627082969
EISBN: 978-1-62708-296-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550457
EISBN: 978-1-62708-307-2
... Abstract Metal-matrix composites can operate at higher temperatures than their base metal counterparts and, unlike polymer-matrix composites, are nonflammable, do not outgas in a vacuum, and resist attack by solvents and fuels. They can also be tailored to provide greater strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... the design and operation of melting furnaces as well as melting practices and the role of fluxing. It also discusses casting methods, nonferrous casting alloys, and atomization processes used to make metal powders. atomization foundry casting melting furnaces nonferrous casting alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230131
EISBN: 978-1-62708-298-3
... was greater than 0.5. One of the possible explanations for these observations is that the cage formed by beryllium can accommodate different metal atoms, and the particular symmetry is defined by the majority element. Investigation of reaction rates between liquid rare-earth metals and beryllium has been...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2016
DOI: 10.31399/asm.tb.ascaam.t59190001
EISBN: 978-1-62708-296-9
... , 1998 , p 237 – 244 10.1016/S0925-8388(98)00686-0 51. Chang J. and Moon I. , Refinement of Cast Microstructure of Hypereutectic Al-Si Alloys through the Addition of Rare Earth Metals , J. Mater. Sci. , Vol 33 , 1998 , p 5051 – 5023 52. Xing P. et al...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... influence design for corrosion resistance are summarized in Table 1 . Each factor plays a unique yet not always unrelated role with other factors. It should be noted that some of these factors are not specific to aluminum, but rather they apply to a variety of structural metals, most notably steels...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240509
EISBN: 978-1-62708-251-8
... with zirconium, rare earths, or thorium to produce precipitation-hardenable alloys. Manganese is used to improve corrosion resistance of Mg-Al and Mg-Al-Zn alloys by removing iron due to the formation of harmless intermetallic compounds. The amount of manganese that can be added is restricted...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550141
EISBN: 978-1-62708-307-2
... of magnesium alloyed with various elements (rare earths, zinc, thorium, silver, and silicon) except aluminum, all containing a small but effective zirconium content that imparts a fine-grained structure and improves mechanical properties. These alloys generally possess better elevated-temperature properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560081
EISBN: 978-1-62708-291-4
...-treated carbon-manganese-niobium steel, also treated with rare earth metals. Test piece (cut in short transverse direction) containing very small globular sulfide inclusions. 65% reduction of area. Unetched 500×. (h) Mechanism by which lamellar tears develop. Fig. 5.14 (Part 2) (d...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030172
EISBN: 978-1-62708-282-2
... temperatures adversely affect mechanical properties and the corrosion properties deteriorate rapidly with increasing temperature. The second group consists of magnesium alloyed with various elements (rare earths, zinc, thorium, and silver) except aluminum, all containing a small but effective zirconium...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310057
EISBN: 978-1-62708-286-0
... of high temperature nickel- and iron-based alloys ( Ref 6 ). Rare earth additions have been suggested to have a multitude of beneficial effects, such as reducing the growth kinetics of Cr 2 O 3 scales, stabilizing Cr 2 O 3 scales at lower chromium levels, increasing adhesion, and preventing spalling...