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fatigue endurance limits

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Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002403
EISBN: 978-1-62708-193-1
... apply to room-temperature conditions for longitudinal specimens. (a) Properties from transverse specimens are identified by (T). (b) Fatigue endurance limits shown apply at from 10 6 to 10 8 cycles. Fatigue results are from rotating beam tests except as noted as follows: (A), Axial; (B...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002374
EISBN: 978-1-62708-193-1
... Ti-6Al-4V HIP, 925 °C, 3 h, 200 MPa 4.46 65 P+S, pressed and sintered; HIP, hot isostatically pressed; DP + DS, double pressed and double sintered; HF, hot forged Table 8 Representative P/M materials, processing cycles, and fatigue endurance limit Composition, wt% Processing...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002408
EISBN: 978-1-62708-193-1
... Table 1 Typical endurance limit values of wrought aluminum alloys Alloyand temper Fatigue endurance limit, MPa (a) 2014-T6 124.11 2219-T62 103.43 2219-T81 103.43 5052-H32 117.22 5052-H34 124.11 5056-O 137.9 5083-H321 158.59 5154-O 117.22 5154-H34...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002399
EISBN: 978-1-62708-193-1
... national specifications. (b) 8.4 mm diameter. (c) Circumferential 45° V-notch with 0.25 mm root radius Table 11 Reversed-bending fatigue properties of three standard grades of ductile iron Type Unnotched (a) 45° V-notched Tensile strength, S t Endurance limit, S e...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002398
EISBN: 978-1-62708-193-1
... Table 1 Fatigue notch sensitivity of several cast and wrought steels ( R =−1) Steel Tensile strength Endurance limit Fatigue endurance ratio Fatigue notch sensitivity factor (b) , q Unnotched Notched (a) MPa ksi MPa ksi MPa ksi Unnotched Notched Normalized...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... limit Ratio of fatigue endurance to tensile strength MPa ksi MPa ksi J ft·lbf MPa ksi Blank carburized Upset 0.24 230 1565 227 1425 207 13.6 42.3 16.3 12.0 487 565 82 0.36 Re-press 0.24 210 1495 217 1325 192 11.0 34.3 12.9 9.5 479 550 80 0.37 Upset...
Book Chapter

By Malcolm Blair
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001023
EISBN: 978-1-62708-161-0
... to ensure a predetermined degree of transformation from austenite to martensite during quenching, in the thickness required. This is important in critical parts requiring toughness and optimum resistance to fatigue. Fig. 2 End-quench hardenability limits for the hardenability grades of cast steel...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003098
EISBN: 978-1-62708-199-3
... by 9 in.), 76 by 229 by 283 mm (3 by 9 by 11 1 8 in.), and 127 by 381 by 381 mm (5 by 15 by 15 in.). The ASTM grain size of the blocks was 6 to 8. The curves represent average values for several tests at each test temperature. Fig. 6 Fatigue endurance limit versus tensile strength...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002400
EISBN: 978-1-62708-193-1
... of direct-quenched, gas-carburized modified 4320 steel with 0.005, 0.017, and 0.031 wt% phosphorus, as marked. Source: Ref 43 Fig. 13 Endurance limits as a function of prior-austenite grain size from various studies of bending fatigue of gas-carburized 4320 steels. Source: Ref 49 Fig...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003257
EISBN: 978-1-62708-176-4
..., tensile, compressive, hardness, torsion and bend, shear load, shock, and fatigue and creep testings. It describes the design criteria for combined properties derived from each of the mechanical testing. The article concludes with a discussion on the effect of environment on the mechanical properties...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006339
EISBN: 978-1-62708-179-5
... treatments such as rolling, peening, or machining after heat treatment, the fatigue strength of ADI is increased significantly. Austempered ductile iron is moderately notch sensitive in fatigue, with a notch sensitivity ratio (ratio of notched to unnotched endurance limits) ranging from 1.2 to 1.6...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002369
EISBN: 978-1-62708-193-1
... variability. It had been the practice, in materials with fatigue endurance limits, to assign no damage for cycles with amplitudes less than the endurance limit. We now know that an endurance limit derived from constant-amplitude testing only exists when all the stresses are below it ( Ref 4 , 5 ). Cycles...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002370
EISBN: 978-1-62708-193-1
... of the component, an N gt value will be set. This again allows the tripartition of the diagram, but now into “technological (or engineering-based) ranges” of the finite endurance, infinite-endurance, and transition. Thus it becomes possible to evaluate a technological fatigue limit ( S FLt ), which...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006723
EISBN: 978-1-62708-210-5
... , % Brinell hardness 500 kg, 10 mm (0.4 in.) ball, HB Ultimate shear strength, MPa (ksi) Fatigue endurance limit (a) , MPa (ksi) T6, T651 310 (45) 276 (40) 17 95 207 (30) 97 (14) T8 352 (51) 338 (49) 15 … … … T9 400 (58) 379 (55) 10 120 241 (35) 90 (13) (a) 1.5 × 10 8...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006555
EISBN: 978-1-62708-210-5
... PM, permanent mold Table 4 Typical mechanical properties of premium engineered aluminum castings Alloy Temper Tension Fatigue endurance limit (a) Ultimate strength Yield strength Elongation in 50 mm (2 in.), % MPa ksi MPa ksi MPa ksi A201.0 T7 495 72 448 65 6...
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
... Table 4 Comparison of transverse and longitudinal mechanical properties of wrought steels Material Specimen orientation Ultimate tensile strength Yield strength, 0.2% offset Impact energy Fatigue endurance limit Elongation, % Reduction of area, % MPa ksi MPa ksi J ft·lbf...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002469
EISBN: 978-1-62708-194-8
... for various alloys subjected to completely reversed loading at ambient temperature. The decrease in fatigue strength with cycles and the endurance limit of some steels is shown. Source: Ref 6 Fig. 3 The relation between fatigue strength and tensile strength of polished, notched specimens...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006112
EISBN: 978-1-62708-175-7
..., “Determination of Rotating Beam Fatigue Endurance Limit in Powder Metallurgy Materials,” 2001 Edition 128. Beretta S. , Blarasin A. , Endo M. , Giunti T. , and Murakami Y. , Defect tolerant design of automotive components , Int. J. Fatigue , 1997 , Vol 19 ( No 4 ), p 319...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006344
EISBN: 978-1-62708-179-5
... modern stress-life testing, the stress is axial, and every element in the cross section sees the same stress of S = P / A (where P is the load, and A is the cross-sectional area). Certain materials, primarily body-centered cubic (bcc) ferrous metals, have an endurance or fatigue limit, which...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005329
EISBN: 978-1-62708-187-0
... constrained by modulus of elasticity, fatigue, toughness, or ductility. Increasing the strength of steel normally reduces the ductility, toughness, and weldability. It is often more cost-effective in steel casting design to use more of a lower-strength grade and increase the section size or modify the shape...