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spherulites

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Published: 01 December 2004
Fig. 4 Fiber nucleation of spherulitic crystal growth in a high-temperature, lightly cross-linked thermoplastic-matrix composite. Micrographs were taken from ultrathin sections of the unidirectional carbon fiber composite. (a) Sectioned through the thickness and perpendicular to the fiber plane More
Image
Published: 01 December 2004
Fig. 4 Crystallinity in thermoplastic-matrix carbon fiber composites. (a) Crystalline region in the center area of a woven carbon fabric composite cross section. Ultrathin section, transmitted polarized light with a full wave plate (540 nm), 20× objective. (b) Fiber-induced spherulite growth More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009082
EISBN: 978-1-62708-177-1
... and nucleation on the formation of spherulites in high-temperature thermoplastic-matrix carbon-fiber-reinforced composites. It also describes the microstructural analysis of a bio-based thermosetting-matrix natural fiber composite system. bio-based thermosetting-matrix natural fiber composites cooling...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006309
EISBN: 978-1-62708-179-5
...Abstract Abstract Malleable iron is a type of cast iron that has most of its carbon in the form of irregularly shaped graphite nodules instead of flakes, as in gray iron, or small graphite spherulites, as in ductile iron. This article discusses the production of malleable iron based...
Image
Published: 01 December 1998
Fig. 5 Same specimen as in Fig. 4 but after correct abrasion, which yields a fully retained nodule. Note that the graphite spherulite has been well preserved. As polished, not etched. 800× More
Image
Published: 31 August 2017
Fig. 6 Same specimen as in Fig. 5 but after correct abrasion, which yields a fully retained nodule. Note that the graphite spherulite has been well preserved. As-polished, not etched. Original magnification: 800× More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009076
EISBN: 978-1-62708-177-1
... requires ultrathin sections for optimal resolution and contrast. The presence of very fine-grained residual structures from liquid crystallinity also requires ultrathin sections. The maximum specimen thickness, T max , can be calculated through the use of Eq 4 for a uniaxial spherulitic structure...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003106
EISBN: 978-1-62708-199-3
... Ductile iron, which is also known as nodular iron or spheroidal graphite cast iron, is very similar to gray iron in composition, but during casting of ductile iron the graphite is caused to nucleate as spherical particles, or spherulites, rather than as flakes. This is accomplished through the addition...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009071
EISBN: 978-1-62708-177-1
... section. Ultrathin section, transmitted polarized light with a full wave plate (540 nm), 20× objective. (b) Fiber-induced spherulite growth. Ultrathin section, transmitted polarized light with a full wave plate (540 nm), 20× objective. (c) Large spherulitic growth in a carbon fiber composite. Ultrathin...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003110
EISBN: 978-1-62708-199-3
... malleable iron martensitic malleable iron mechanical properties metallurgical control pearlitic malleable iron MALLEABLE IRON is a type of cast iron that has most of its carbon in the form of irregularly shaped graphite nodules instead of flakes, as in gray iron, or small graphite spherulites...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003025
EISBN: 978-1-62708-200-6
... the T g . During crystallization, the crystalline polymer packs all of the low-molecular-weight components and impure species into the interstices between the spherulites, leaving these as contaminated boundaries of lower strength and modulus. Shrinkage during crystallization may leave stresses...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003725
EISBN: 978-1-62708-177-1
... ), and eventually a spherulitic eutectic grain results ( Fig. 32c ). Fig. 32 Change in the morphology of the austenite-Fe 3 C eutectic grain at increasing cooling rate. (a) to (c) proposed in Ref 28 Unalloyed white irons do not have significant practical applications. On the contrary, medium...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006304
EISBN: 978-1-62708-179-5
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001006
EISBN: 978-1-62708-161-0
... exists predominantly as graphite, either in flake or spherulitic form, which subdivides heat-resistant irons into either gray or ductile irons. There are also ferritic and austenitic white iron grades, although they are less frequently used and have no American Society for Testing and Materials (ASTM...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
...-weight components and impure species into the interstices between the spherulites, leaving these as contaminated boundaries of lower strength and modulus. Shrinkage during crystallization may further leave stresses and voids in these interstices, weakening them even more. The surface between spherulites...
Book Chapter

Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001005
EISBN: 978-1-62708-161-0
... metallurgical factors pearlitic malleable iron whiteheart malleable iron MALLEABLE IRON is a type of cast iron that has most of its carbon in the form of irregularly shaped graphite nodules instead of flakes, as in gray iron, or small graphite spherulites, as in ductile iron. Malleable iron is produced...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003402
EISBN: 978-1-62708-195-5
... to their heterogeneous nature, the complex chemistry of the resin and its interaction with fibers and fillers, and simultaneous transport of mass and energy at the micro-, meso-, and macrolevels. Issues that are analyzed at the microscale, such as growth rate of a micron-size spherulite, can be represented...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006342
EISBN: 978-1-62708-179-5
... nodule in a ductile iron specimen after incorrect abrasion. The graphite phase has been torn away. Not polished, not etched. Original magnification: 800× Fig. 6 Same specimen as in Fig. 5 but after correct abrasion, which yields a fully retained nodule. Note that the graphite spherulite has...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003245
EISBN: 978-1-62708-199-3
... has been torn away. Not polished, not etched. 800× Fig. 5 Same specimen as in Fig. 4 but after correct abrasion, which yields a fully retained nodule. Note that the graphite spherulite has been well preserved. As polished, not etched. 800× Polishing For cast iron, polishing...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001303
EISBN: 978-1-62708-170-2
... is insufficient to maintain a full fluid film). It has outstanding properties for applications involving vibrational damping or moderate thermal shock. Ductile Iron Ductile iron, also known as spheroidal graphite or nodular iron, contains spherulitic graphite in which the graphite flakes form into balls...