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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410315
EISBN: 978-1-62708-265-5
.... It then explains how wire drawing, patenting, and the Stelmor process affect microstructure, and describes various fracture mechanisms and how they appear on steel wire fracture surfaces. The chapter concludes by discussing the effects of torsional deformation, delamination, galvanizing, and aging on patented...
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Published: 01 January 2015
Fig. 15.15 Examples of wire that failed by delamination (top) and by torsional deformation and transverse shear fracture (bottom). SEM micrographs. Source: Ref 15.39 More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... strength is again the “weak link” when the shear stress exceeds the shear strength. Again, plastic or permanent deformation occurs, although in torsion the deformation may not be obvious unless there were longitudinal reference marks on the shaft prior to twisting ( Fig. 5 ). Even in a cylindrical part...
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Published: 01 June 1983
Figure 1.4 Mechanical deformations with which shear modulus and torsional modulus are associated. More
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Published: 01 January 1998
Fig. 8-17 Comparison of static torsion torque deformation curves for L-type steels with (left) and without (right) vanadium after tempering at three temperatures. Data from Teledyne VASCO More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270122
EISBN: 978-1-62708-301-0
... microscopes, was flat and shiny with deformation marks and dimples, typical of torsional overload, and signs of severe rubbing on the periphery. Based on their observations, investigators concluded that the quill shaft failed by torsional overload, the source of which could not be determined. quill...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270124
EISBN: 978-1-62708-301-0
... that a considerable amount of rubbing occurred after the shaft broke. SEM fractography revealed deformation marks and elongated dimples, typical of shear overloads, along with other details. Based on their analysis, investigators concluded that the cardan shaft failed under torsional overload. They also cited a need...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270130
EISBN: 978-1-62708-301-0
... fractograph. Fig. CH28.2 Fracture surface of bolt No. 2 showing mud cracks Fig. CH28.3 Intergranular cracks seen on the fracture surface of bolt No. 4 Bolt No. 6 showed clear indication of single torsional overload failure. Twisting deformation marks at the periphery, with the final...
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Published: 01 August 1999
. (3) Warm deformed: deformed by torsion at a surface strain rate of 0.016 s −1 at 700 °C. More
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Published: 01 July 2009
Fig. 1.3 Time-dependent deformation and recovery of primary creep. (a) Schematics of various time-dependent deformation. (b) Curve of primary creep recovery for polycrystalline aluminum in torsional creep at 175 °C (347 °F). Source: Ref 1.2 More
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Published: 31 December 2020
Fig. 4 Change in electrical resistivity during isothermal recovery for copper deformed by torsion at 4.2 K. Source: Ref 5 More
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Published: 01 October 2005
Fig. CH28.4 (a) Fracture surface of bolt No. 6, showing deformation marks and central region of fracture indicative of torsional loads. (b) Shear dimples on the fracture surface of bolt No. 6 More
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Published: 01 December 2006
Fig. 5.63 Flow stress and workability of steels measured from the number of turns to failure in torsion tests as a function of temperature. (a) Flow stress. (b)δ. (c) Deformation capacity [ Ben 73 ] More
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Published: 01 December 2006
Fig. 5.13 Flow stress of some non-age-hardening aluminum alloys as a function of the deformation temperature (maximum of the flow curve in torsion tests with φ ˙ g = 0.655 ⁢     s − 1 [ Ake 70 ] More
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Published: 01 December 2006
Fig. 7.120 Time-dependent wear rates from hot torsion tests for the hot working steel 1.2779 as the rotating steel heated to 550 °C and the extruded materials AlMgSi0.5, CuZn42 and CuNi30 heated to the deformation temperature [ Schi 82 ] More
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Published: 01 January 1998
Fig. 13-42 Combinations of quenching temperature and tempering temperature to produce a hardness of 42 to 55 HRC in H21 steel. Torsional ductility and toughness are given by values of ultimate deformation (left size of band) and ultimate torque (right side of band). Courtesy of Teledyne VASCO More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870105
EISBN: 978-1-62708-344-7
... section area. However, a lessthan-ideal specimen design can result in failure at the stress-strain concentration points B in the fillet. Furthermore, the stress distribution in the center of the specimen may be nonuniform, especially when large plastic deformations are involved. Thus, few of the recent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130087
EISBN: 978-1-62708-284-6
... that control elastic deformation are geometry and modulus of elasticity. These are not factors that are greatly influenced by the heat treater. Thus, the heat treater is usually not at fault in the case of sudden onset buckling of a column, sudden onset buckling of a tube in torsion, or for elastic deformation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610025
EISBN: 978-1-62708-303-4
.... The chapter also covers compression, shear, and torsion testing, the prediction of yielding, residual stress, and hardness. compression hardness notched tensile test shear stress-strain curve tension MANY MATERIALS, both during initial fabrication and later when placed in service...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420085
EISBN: 978-1-62708-452-9
... (spalling), thermal fatigue, and shaft fatigue. Tooth bending impact includes tooth shear, tooth chipping, case crushing, and torsional shear. abrasive tooth wear bending fatigue bending impact failure mode analysis gears Although this definition generally has been accepted...