ASME 67-DE-31 PDF Download
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Author: A. F. Kravic
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 5
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Book Description
Author: A. F. Kravic
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 5
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Book Description
Author: Metal Powder Industries Federation
Publisher:
ISBN:
Category : Metal powder products
Languages : en
Pages : 0
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Book Description
Standard 56 (Determination of Rotating Beam Fatigue Properties of Powder Metallurgy (PM) Materials) This method applies to ferrous materials which have an endurance limit. The endurance limit is that stress below which the material will not fail in 107 cycles.
Author: Markus Schneider
Publisher:
ISBN: 9783183751051
Category : Iron
Languages : en
Pages : 132
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Book Description
Author: C. J. Leadbeater
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 112
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Book Description
Author: R. S. BANKOWSKI
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Book Description
![Thermal and High-strain Fatigue. Proceedings of an International Conference Organized by the Institute of Metals in Association with the Iron and Steel Institute and Held at Church House, London, on 6 and 7 June 1967. [With Illustrations.]. PDF](https://books.google.com/books/content/images/frontcover/3ZQEMwEACAAJ?fife=w80-h100)
Author: Institute of Metals (LONDON)
Publisher:
ISBN:
Category :
Languages : en
Pages : 435
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Book Description
Author: Yingjie Yan
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Mark Benjamin Vollmers
Publisher:
ISBN:
Category :
Languages : en
Pages : 194
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Book Description
Author: A. J. McEvily
Publisher:
ISBN:
Category :
Languages : en
Pages : 61
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Book Description
One of the important conditions in qualifying high strength powder metallurgy alloys is their resistance to fatigue crack propagation. The results of the present investigation indicate that the fatigue crack propagation resistance of high strength P/M aluminum alloys is equivalent to that of a comparable ingot metallurgy alloy in the near-threshold region. The ingot alloy exhibits a slightly lower crack growth rate in the intermediate region. However the higher strength of the P/M alloys (550 MPa YS, 600 MPa UTS) as compared to the ingot alloy (450 MPa, 550 MPa) results in a reduction of fracture toughness with the result that the crack growth rates at high (Delta) k levels are higher in the P/M alloys. If exactly equivalent tensile properties were present in both P/M and I/M materials perhaps this difference would not occur since nothing characterizable as a defect was found in the P/M alloys. A procedure for the analysis of the growth of short cracks from notches based upon crack closure considerations has also been formulated. Short crack behavior is important in establishing inspection intervals in retirement for cause applications, for example. The rate and extent at which crack closure develops in the wake of a newly formed crack can be used not only in the treatment of short crack behavior, but also to account for the notch size effect in fatigue as well as for fatigue notch sensitivity.
Author: K. A. Fowler
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
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Book Description
The initial phase of a continuing study of nondestructive test methods for potential application to sintered powdered metals is described. Measurements of natural mechanical resonant frequency and ultrasonic velocity have been successfully applied to the nondestructive evaluation of tensile strength of sintered iron test specimens. Empirical relationships between tensile strength and the velocity of sound propagation have been developed. These relationships are based on the fact that the disposition of residual porosity, which includes the size, shape, and distribution of the pores, simultaneously influences both the tensile strength and sonic velocity of sintered iron powder compacts. (Author).
