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intergranular fatigue

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Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630063
EISBN: 978-1-62708-270-9
... for single-load applications, and fatigue for multiple-load applications. Each of these fracture modes are discussed in this chapter. The factors affecting the ductile brittle relationship are also covered. cleavage fatigue fracture modes intergranular fracture quasi-cleavage fracture shear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910099
EISBN: 978-1-62708-250-1
..., and poultice corrosion; galvanic corrosion; erosion-corrosion, including cavitation erosion and fretting corrosion; intergranular corrosion, including sensitization and exfoliation; dealloying; environmentally assisted cracking, including stress-corrosion cracking, corrosion fatigue, and hydrogen damage...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240265
EISBN: 978-1-62708-251-8
... of elevated fracture, namely, rupture, transgranular fracture, and intergranular fracture. The next section focuses on some of the metallurgical instabilities caused by overaging, intermetallic phase precipitation, and carbide reactions. Subsequent sections address creep life prediction and creep-fatigue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240323
EISBN: 978-1-62708-251-8
..., cavitation, fretting corrosion, intergranular corrosion, exfoliation, dealloying corrosion, stress-corrosion cracking, and corrosion fatigue. The chapter discusses the processes involved in corrosion control by retarding either the anodic or cathodic reactions. The rate of corrosion is reduced...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130043
EISBN: 978-1-62708-284-6
...Abstract Abstract This chapter provides an overview of the possible mechanisms of failure for heat treated steel components and discusses the techniques for examining fractures, ductile and brittle failures, intergranular failure mechanisms, and fatigue. It begins with a description...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
... in ambient air. Intergranular cracking and fatigue striations are evident on the fracture surface; the grain appears to have separated from the rest of the microstructure. Source: Ref 17 Fig. 2 Electrolytic corrosion of steel. Source: Ref 2 Fig. 3 Basic electrochemical cell. Source...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
... to prevent or mitigate its effects. It describes several forms of corrosion, including uniform, intergranular, pitting, crevice, and stray-current corrosion, and the effects of stress-corrosion cracking, corrosion fatigue, and selective leaching. It discusses the use of corrosion inhibitors, cathodic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130111
EISBN: 978-1-62708-284-6
... as to morphology and composition Rolling-contact fatigue appears like wear in early stages Multiple intergranular fissures covered with reaction scale Grain faces may show porosity Metallographic inspection, 50 to 1000× (cross section) Grain distortion and flow near fracture Irregular...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180151
EISBN: 978-1-62708-256-3
... marks somewhat similar to those observed in fatigue fractures Fig. 16 Example of hydrogen-embrittled steel. Intergranular fracture in an AISI 4130 steel heat treated to an ultimate tensile strength of 1281 MPa (186 ksi) and stressed at 980 MPa (142 ksi) while being charged with hydrogen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250039
EISBN: 978-1-62708-345-4
... and the response of the microstructures to cyclic loading. Bending Fatigue Testing Stages of Fatigue and Fracture Intergranular Fracture and Fatigue Inclusions and Fatigue Austenitic Grain Size and Fatigue Surface Oxidation and Fatigue Retained Austenite and Fatigue Subzero Cooling...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410499
EISBN: 978-1-62708-265-5
... and Embrittlement Phenomena in Steels,” and several cases of intergranular cracking have been reported in induction-hardened steels. One study documented intergranular fracture in induction-hardened axles of a modified 1050 steel under conditions of bending overload and rotating bending fatigue ( Ref 21.14...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060001
EISBN: 978-1-62708-343-0
...Abstract Abstract This chapter familiarizes readers with the mechanisms involved in creep and how they are related to fatigue behavior. It explains that what we observe as creep deformation is the gradual displacement of atoms in the direction of an applied stress aided by diffusion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130351
EISBN: 978-1-62708-284-6
.... At areas beyond the inside diameter surface, the SEM fractographs revealed a mixed intergranular with transgranular features and patches of scale. These are shown in Fig. 37 . Along the periphery of the discolored region, fatigue striations could be observed at a higher magnification, as shown in Fig. 38...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... mm ( Fig. CH2.2a, b ). The intergranular fracture at the leading edge of the blade is shown in Fig. CH2.3 . In the transgranular fracture zone, well-defined beach marks, typical of fatigue, could be seen ( Fig. CH2.4a ). At higher magnifications, striations were seen confirming the fatigue crack...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610415
EISBN: 978-1-62708-303-4
... Transgranular-Intergranular Fracture Transition Aging Intermetallic Phase Precipitation Carbide Reactions Interaction of Precipitation Processes Creep-Rupture Embrittlement Creep-Fatigue Interaction Thermal Fatigue Thermomechanical Fatigue Portions of this chapter came from “ Creep...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870099
EISBN: 978-1-62708-299-0
... resulted in end grain exposure. 105 x . (d) SEM fractograph taken between the arrows in (b). Note intergranular fracture pattern indicative of SCC. 95 x . (e) SEM taken near the termination of the fracture showing the crack still progressing by SCC. 190 x . (f) SEM showing fatigue striations near the crack...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270025
EISBN: 978-1-62708-301-0
.... The striations have a curvature with center at the origin of fracture. A SEM fractograph of an intergranular fracture in a high-strength steel component due to hydrogen embrittlement is shown in Fig. 4.11 . Fig. 4.10 SEM fractograph showing fatigue striations Fig. 4.11 SEM fractograph...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270102
EISBN: 978-1-62708-301-0
... to the bolts. The intergranular oxidation in the bolts is an abnormality even though the failure is not directly related to this defect. The presence of beach marks and striations on the fracture surface indicates clearly that the failure was due to fatigue. The different striation spacings coexisting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
..., indicating full constraint at that location. Source: Ref 17 Fig. 40 Ductile-to-brittle temperature comparison for different metals. bcc, body-centered cubic; fcc, face-centered cubic. Source: Ref 2 Fig. 41 Transgranular and intergranular failures. Source: Ref 19 Fig. 42...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630081
EISBN: 978-1-62708-270-9
... in identifying the failure mechanism. Fractures accompanied by gross deformation (ductile fracture) are caused by one of three possible failure mechanisms: monotonic ductile overload, very low cycle fatigue, or stress rupture. In contrast, fracture in the absence of gross deformation (brittle fracture) is caused...