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notch-toughness test

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003104
EISBN: 978-1-62708-199-3
... deleterious, are of interest both at service temperature and, because of shutdowns, at ambient temperatures. Ductility is also an important factor that influences notch sensitivity and creep-fatigue interaction. The types of tests most commonly used to evaluate the mechanical properties of steels at...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
... determine the susceptibility of alloys to SCC and hydrogen embrittlement, several types of testing are available. This article describes the constant extension testing, constant load testing, constant strain-rate testing for smooth specimens and precracked or notched specimens of SCC. It provides...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... onset of ductile fracture. The DEFORM software incorporates a subroutine for calculating the likelihood of fracture using the Cockcroft-Latham criteria. The damage value C in Eq 49 was determined from the true stress-true strain curve measured in both compression and with a notched tension test and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003025
EISBN: 978-1-62708-200-6
... se. However, they are widely believed to be more reliable than formal fracture toughness tests, simply because the deleterious effects of unfavorable flow geometries are more directly obvious in an impact test program than in fracture toughness tests, in which the sharp notch dominates the situation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
.... The article describes testing methods such as room and high-temperature strength test methods, proof testing, fracture toughness measurement, and hardness and wear testing. It also explains methods for determining thermal expansion, thermal conductivity, heat capacity, and emissivity of ceramics and...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003103
EISBN: 978-1-62708-199-3
... hardenability. However, this is not recommended, because the use of coarser-grained steels usually involves a serious sacrifice in notch toughness and may lead to other difficulties. Segregation of carbon, manganese, and other elements always occurs during ingot pouring and solidification. As a result...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... properties. 1% porosity reduces strength by 5% and fatigue life by 50%. Surface notches Static strength reduction of up to 50%. Strength reduction is small for notch sizes that are expected in service. Thermal overexposure Embrittlement and reduction of toughness up to complete loss of structural...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003224
EISBN: 978-1-62708-199-3
... requirements. Frequently, a compact-type (CT) specimen, shown in Fig. 4 (d), is used to experimentally determine fracture toughness, as well as other fracture properties. The first step in fracture-toughness testing is to grow a fatigue starter crack at a low rate at the base of the machined notch. Such...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005654
EISBN: 978-1-62708-198-6
... polishing of the implanted material. Bundy et al. ( Ref 5 ) performed an in vivo investigation in which ring-stressed tension samples were used where the stress level could be controlled in a notched test specimen. They tested specimens where both the ring and the stressed sample were made from the same...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
... stock undergoes extensive deformation during cogging and rolling of the original ingot. This creates inclusion stringers and leads to mechanical anisotropy. Directionality due to planes of weakness is especially evident in ductility and toughness values when testing bar stock in several sample...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
... Abstract Ceramic-matrix composites (CMCs) are being developed for a number of high-temperature and high-performance applications in industrial, aerospace, and energy conservation sectors. This article focuses on processing, fabrication, testing, and characterization methods of CMCs, namely...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003108
EISBN: 978-1-62708-199-3
... curves for ferritic and pearlitic ductile iron in both the notched and unnotched conditions. The tests were made on Wohler-type fatigue machines with polished specimens 10.6 mm (0.417 in.) in diameter. Heat to 875 to 925 °C (1605 to 1695 °F), hold for 2 to 4 h, quench in a salt bath at 400 to 450...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000614
EISBN: 978-1-62708-181-8
... Abstract This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of maraging steels and in identifying and interpreting the morphology of fracture surfaces. The fractographs illustrate the tensile-test fracture, low-cycle fatigue fracture...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001834
EISBN: 978-1-62708-181-8
... illustrations. The article also describes microscopic and macroscopic features of the different fracture mechanisms with illustrations with emphasis on visual and light microscopy examination. The types of fractures considered include ductile fractures, tensile-test fractures, brittle fractures, fatigue...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005323
EISBN: 978-1-62708-187-0
... properties and specifications of test bar. It discusses the properties of gray iron, such as fatigue limit, pressure tightness, impact resistance, machinability, and dimensional stability, at both room and elevated temperature. Wear behavior of gray iron castings during sliding contact under conditions of...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005343
EISBN: 978-1-62708-187-0
... from the casting had mechanical properties below the minimum requirement for a separately cast specimen. Three 10 by 10 mm (0.4 by 0.4 in.) Charpy V-notch impact specimens were also extracted from the spindle and tested at −20 °C (−4 °F). The average impact toughness value of the specimens was well...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005682
EISBN: 978-1-62708-198-6
... different types of tissue responses to the biomaterial. The article discusses the testing of implant failure, such as in vitro and in vivo assessment of tissue compatibility. biomaterials biomedical devices cardiovascular applications ceramic implants dental applications functionally-graded hip...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005255
EISBN: 978-1-62708-187-0
... Abstract This article reviews the pattern materials used in investment casting. It describes patternmaking process, pattern tooling, and pattern and cluster assembly. The article provides information on melting equipment, casting methods, and the inspection and testing of investment casted...