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creep-rupture life

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... components that are vulnerable to bulk creep damage typically are subjected to uniform loading and uniform temperature distribution during service. The life of such a component is related to the creep-rupture properties, and the type of failure is referred to as stress rupture or creep rupture. Stress or...
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...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... electromechanical testing equipment, continuous extensometer measurements, and a relatively low testing frequency. Further details on testing are given in the article “Fatigue, Creep Fatigue, and Thermomechanical Fatigue Life Testing” in Mechanical Testing and Evaluation , Volume 8 of the ASM Handbook , 2000...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003128
EISBN: 978-1-62708-199-3
... elevated-temperature aluminum casting alloys. It provides a list of the creep-rupture properties and fatigue strengths of separately sand cast test bars of alloy 201.0, alloy C355.0-T61, alloy A356.0-T61, and alloy 354.0-T61. alloy 201.0 alloy 354.0-T61 alloy A356.0-T61 alloy C355.0-T61 aluminum...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003088
EISBN: 978-1-62708-199-3
... or more output parameters, where those output parameters may include a prediction of factors such as operating stress, strain, deflection, deformation, wear rate, fatigue strength, creep strength, or service life. In reality, virtually all material properties and design parameters exhibit some...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005411
EISBN: 978-1-62708-196-2
... Abstract The overarching goal of life-prediction research is to develop models for the various types of time dependencies in the crack-tip damage accumulation that occur in materials subjected to elevated temperatures. This article focuses on describing the models based on creep, oxidation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003005
EISBN: 978-1-62708-200-6
... Abstract The selection of engineered materials is an integrated process that requires an understanding of the interaction between materials properties, manufacturing characteristics, design considerations, and the total life cycle of the product. This article classifies various engineered...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005260
EISBN: 978-1-62708-187-0
... building the molds. It examines the effect of mold design on mold life. The article outlines the primary purposes, procedure, and application of mold coatings. The variables that determine mold temperature and control measures associated with mold temperature are reviewed. The article explains the effect...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006266
EISBN: 978-1-62708-169-6
.... However, incipient melting temperatures limit the homogenization possible in many PC or CGDS superalloys. For a CGDS nickel-base superalloy, MAR-M-200 + Hf, a direct correlation was shown to exist between creep-rupture life at 980 °C (1800 °F) and the V f of fine γ′ ( Fig. 11 ). Fig. 11...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003024
EISBN: 978-1-62708-200-6
... types of plastics exhibit similar first- and second-stage creep deformation. The onset of creep rupture may not occur within the service life of the product (let alone the test). As the stress level increases, first- and second-stage creep deformation rates remain relatively the same for these types...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003120
EISBN: 978-1-62708-199-3
... solidification cycle. Substantial property improvements have resulted for many alloys, Modulus parallel to the natural growth direction is lowered, leading to improvements in thermal fatigue life, ductility generally is increased, and creep-rupture strength (life) is improved through removal of transverse grain...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... Contributing factors Load exceeded the strength of the part Check for proper alloy and processing by hardness check and destructive testing, chemical analysis Loading direction can show failure was secondary Short-term, high-temperature, high-stress rupture has ductile appearance (see creep...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005930
EISBN: 978-1-62708-166-5
... temperatures (for example, >980 °C, or 1800 °F), more and more applications use nickel-base alloys because of their improved creep-rupture strengths and oxidation resistance. Cobalt-base alloys are generally too expensive except for very special applications. Therefore, this discussion is limited to the use...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006265
EISBN: 978-1-62708-169-6
... carbides into solid solution. These extreme temperatures produce a coarse grain structure, minimum softness, and improved high-temperature mechanical properties, such as creep or stress rupture. Stress relieving : This is a heat treatment to reduce or eliminate internal stresses in work-hardened alloys...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
... damage in the heat-affected zones of longitudinal seam welds using replication to look for void formation and cracks at grain boundaries, an early indication of impending creep failure. Cyclic loading is now continuously monitored in many systems during component life cycles. General observation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003164
EISBN: 978-1-62708-199-3
... silicon and zirconium appear to improve creep resistance, but the most significant improvement is attained by increasing the aluminum content to 25 at.% and limiting β-stabilizing elements to approximately 12 at.%. However, the Ti-24.5Al-17Nb-1Mo alloy exhibits a rupture life superior to that of other α-2...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003104
EISBN: 978-1-62708-199-3
... controls allowable stresses. For temperatures in the creep range, allowable stresses are determined from either creep-rupture properties or the degree of deformation from creep. In recent years, the worldwide interest in life extension of high-temperature components has also promoted considerably more...
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 Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
..., and tertiary creep. The fracture initiates during primary creep, propagates during secondary or steady-state creep, and becomes unstable, resulting in failure, during tertiary or terminal creep. From a practical standpoint of the service life of a structure, the initiation and steady-state propagation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... in the hot sections of aero gas turbine blades to improve creep strength and prolong blade life from creep damage. High-temperature corrosion at aero-operating temperatures does not occur often, but ingestion of sea salt in naval aircraft can result in pitting and molten-salt corrosion and can...