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conventional isothermal hot-tension test

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060209
EISBN: 978-1-62708-355-3
... in this chapter, namely, the Gleeble test and the conventional isothermal hot-tensile test. The discussion covers equipment used and testing procedures for the Gleeble test along with information on hot ductility and strength data from this test. The chapter describes the stress-strain curves, material...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... sliding can occur. Creep forming, hot die forging, isothermal forging, and isothermal rolling are processes that rely in part on grain-boundary sliding and other thermally activated deformation mechanisms. The workability, or the ease with which a metal is shaped by plastic deformation, is lower...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060163
EISBN: 978-1-62708-355-3
... of flexural or bending tests. In these tests, the specimen is subjected to a complex stress state including tension, compression, shear, and significant stress gradients. In interpreting the results of these flexure tests, the maximum tensile stress present in the specimen at failure is usually reported...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... in cast and ingot metallurgy wrought products. Figure 7.1 provides an illustration of the potential for raw material input reduction for a specific gas turbine part (compressor disk) when produced by conventional ingot metallurgy, hot isostatic pressing (HIP) plus forging, and direct HIP to produce...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
.... Forgings, whether made on a hammer or a press, are classified either as open die or closed die ( Ref 10.18 ). Closed-die forgings produced in a hydraulic press can be further classified into conventional, hot die, and isothermal. Equipment and processes are similar to those used for other alloy systems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... cycles in machines involve independent variations of strain and temperature, unlike in the isothermal low-cycle-fatigue tests conducted in the laboratory. In view of the ease of testing and data analysis, however, most laboratory studies have focused on isothermal fatigue tests, assuming that such tests...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
..., including open-die and closed-die forging, hot upset and roll forging, high-energy-rate forging, ring rolling, rotary swaging, radial and orbital forging, isothermal and hot-die forging, precision forging, and cold forging. The chapter also includes information on cold and hot extrusion and drawing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500083
EISBN: 978-1-62708-317-1
..., 1.10%; Fe, 0.5%; Si, 0.21%; Zn, 0.01%; Ti, 0.02%; Cu, 0.07%; Mg, 0.02%) Test procedure Uniaxial tension tests, Instron Model 1127 Dimensions/standards ASTM E 8 and E 517; G = 50 mm, W = 12.5 mm Range of strain 0–0.5 Range of strain rate 0.0083/s Range of temperature 25–260 °C (75...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060429
EISBN: 978-1-62708-261-7
... the body of the material, engineering stress. A term sometimes used for giving rise to a layered appearance. conventional stress in order to differentiate it from true stress. In tension testing, it is calcu- exothermic reaction. A reaction that liberates lated by dividing the load applied to the spec...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700023
EISBN: 978-1-62708-279-2
...,” transformation produces a feathery microstructure called bainite. Figure 2.5 shows a superimposed isothermal heat treatment curve ( ABCD ) where austenite begins its transformation at T > 725 °C. It is then rapidly cooled to T = 625 °C (1160 °F) and then held at constant temperature of 625 °C until...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060173
EISBN: 978-1-62708-343-0
... a conventional monotonic tensile test. It has been shown ( Ref 8.10 ) to provide reasonable estimates of the life at subcreep temperatures. However, at elevated temperatures, where creep and environmental interaction may occur, this equation has been found to be unconservative. In 1966, Manson ( Ref 8.11...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400245
EISBN: 978-1-62708-258-7
... in properties that occurs at ambient or moderately elevated temperatures after hot working, heat treating, or 246 / Metallographer s Guide cold working (strain aging). The change in properties is often due to a phase change (precipitation), but does not alter chemical composition. See also age hardening, arti...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320195
EISBN: 978-1-62708-332-4
... Abstract Unlike conventional quench and temper heat treatment, austempering is an iron and steel heat-treatment process that enhances mechanical properties through the isothermal transformation of austenite with a minimum amount of quenching stresses. This chapter begins with a discussion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
..., and private industries. One method used PM techniques for cold compaction and sintering. These steps were followed, in some cases, by hot or cold working to produce small amounts of metal products suitable for inspection and testing. However, such products had serious shortcomings that could not be corrected...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870325
EISBN: 978-1-62708-344-7
..., the results are shown in Fig. 12.8 . Note that, as with metals, the irregular behavior of the monotonic tension test does not carry over into cyclic behavior. Note also that the cyclic compression stress response is of the order of 25% greater than cyclic tension. Other cyclic stress-strain curves generated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390284
EISBN: 978-1-62708-459-8
... and is known to vary greatly in hot extrusion [ 159 ]. Also, the die bearing is relatively small, and friction in the bearing channel is difficult to resolve over variations in the total extrusion load [ 20 , 157 ]. If the billet heats up in the course of extrusion (as in cold extrusion and isothermal hot...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390173
EISBN: 978-1-62708-459-8
... to a thickness of about 1.5 to 5 mm; if quantities are large, a continuous hot strip mill is employed in which multiple roll stands are placed close enough together for the strip to run through all stands simultaneously, with controlled tensions between stands. The strip may be the finished product in the form...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560427
EISBN: 978-1-62708-291-4
... for average linear strain or conventional strain in order to differentiate it from true strain. In tension testing it is calculated by dividing the change in the gage length by the original gage length. engineering stress (s), A term sometimes used for conventional stress in order to differentiate it from...