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coefficient of thermal expansion

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001593
EISBN: 978-1-62708-234-1
... in coefficients of thermal expansion between the polysulfone and the mating steel insert. Coefficient of thermal expansion Insert molding Plastic Polysulfone Brittle fracture Introduction Visual Examination Scanning Electron Microscopy Fourier Transform Infrared Spectroscopy Differential...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048772
EISBN: 978-1-62708-220-4
... in a section through the fireside edge of the fracture surface. Scale was observed over most of the crack path which acted as a stress raiser. The effect of the oxide was magnified during thermal cycles because of differential thermal expansion, with the steel having a greater expansion coefficient than...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001811
EISBN: 978-1-62708-241-9
... coefficient of thermal expansion 28Cr3SiNiWMoV (chromium hot-worked steel) Introduction History Visual Observations Chemical Composition Hardness Testing Phase Analysis Metallography Characterization by Eddy Current Method Discussion Conclusion References References 1...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001358
EISBN: 978-1-62708-215-0
... an austenitic filler metal because of the difference in coefficients of thermal expansion between the weld metal and base metal when the compressor is operating. The compressor is part of the combustion system in the gas turbine. It compresses air between the rotating blades and the stationary diaphragms...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001110
EISBN: 978-1-62708-214-3
... features revealed that failure was by thermal fatigue caused by the presence of biaxial thermal stresses on the inner surface of the tube. Because of their higher coefficient of thermal expansion and their lower thermal conductivity, austenitic stainless steels have poor resistance to thermal fatigue...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0090451
EISBN: 978-1-62708-218-1
.... Further analysis of the assembly materials using thermomechanical analysis (TMA) produced significantly different results for the PET jacket and the steel housing material. Determination of the coefficients of thermal expansion (CTEs) showed approximately an order of magnitude difference between the two...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
...-corrosion cracking (SCC) and hydrogen damage; fracture, including fatigue fracture, thermal fatigue fracture, and stress rupture; and distortion, especially distortion involving thermal-expansion effects or creep. The causes of failure can generally be classified as design defects; fabrication defects...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001069
EISBN: 978-1-62708-214-3
... annealing at 650 °C (1200 °F). The intermediate nickel-iron alloy bond layer aids in minimizing the effects of differences of coefficients of thermal expansion between the carbon steel and stainless steel cladding caused by stress-relief annealing. Another solution is to shot-peen the clad surfaces...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... temperature or time Composition, thermal stability, evolved gas analysis Thermomechanical analysis (TMA) Dimensional changes over temperature Coefficient of thermal expansion, material transitions, molded-in stress, chemical compatibility Dynamic mechanical analysis (DMA) Elastic modulus, viscous...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001570
EISBN: 978-1-62708-220-4
... of holding strength might be aggravated due to the lack of isotropy of titanium, which has a hexagonal crystal structure 3 . The difference in the thermal expansion coefficient of carbon steel and titanium might have played an important part in the loosening of the joint. The thermal expansion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001852
EISBN: 978-1-62708-241-9
... source of thermal loading for thermal shock simulation. For inner surface the convection coefficient h out = 10 W/m 2 °C is applied [ 8 ] while the convection coefficient h in = 306 W/m 2 °C is applied for loading (heating up to 240 °C) the outer surface and h in = 490 W/m 2 °C for unloading...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... at or above the service temperature. Thermal cycling can cause failures where adjacent materials differ significantly in composition and coefficient of thermal expansion. Embrittlement may also be the result of metallurgical changes that leave the material relatively ductile and tough at elevated temperature...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001845
EISBN: 978-1-62708-241-9
... of elasticity 1.30 × 10 5 MPa Fracture load ≥9.0 kN Thermal conductivity 250 W/m-K Sliding load 1.5 kN Coefficient of thermal expansion (20–300 °C) 1.7 × 10 –5 K Tightening torque 28 N m Fig. 1 General view of the steady clamps analyzed: ( a ) views in different directions; ( b...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... to the thermal expansion of the specimen at the current temperature is computed through knowledge of the coefficient of thermal expansion, the temperature, and the gage length. It is then transformed into an equivalent electrical signal to which a signal corresponding to the total mechanical strain is added...
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
... oxidation rate versus temperature. LTHC, low-temperature hot corrosion; HTHC, high-temperature hot corrosion. Courtesy of U.S. Navy Fig. 26 Schematic of cross section of a thermal barrier coating (TBC). Calcium-magnesium-alumino-silicate (CMAS) deposits on the TBC surface, which upon melting...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001668
EISBN: 978-1-62708-232-7
.... A check was made on the differences in the thermal coefficients of expansion between the autoclave and bolt material. This analysis indicated an additional load of 3.38 kN would be placed on the torqued bolts. The total torqued bolt load with this small increment is still below a yield condition...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... ) as a function of crack size for crack types A, B, and C. Δ K thermal , cyclic stress intensity due to thermal stresses; Δ K p , cyclic stress intensity due to pressure stresses Fig. 17 Effect of hold time on the fatigue crack growth rate properties of 2.25Cr-1Mo cast steel. The 2 h hold time tests...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
... coating material requires a consideration of its coefficient of thermal expansion and the ability of the coating process to produce a dense coating microstructure. Within the boundaries of materials considered in published research (WC-Co and Al 2 O 3 ), test results indicate that the cermet coatings...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001771
EISBN: 978-1-62708-241-9
... ]. Carburized material in the inner wall of the radiant tube has a higher thermal expansion coefficient and tends to increase in volume and place stresses on the tube. These thermal stresses make the tube more susceptible to creep failure [ 3 ]. The deposition of the coke at high temperature is generally...