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Jominy end-quench testing

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Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310079
EISBN: 978-1-62708-326-3
... influence steel hardenability and selection. The discussion covers processes involved in Jominy end-quench test for evaluating hardenability. The effect of carbon on hardenability data and the effect of alloys on hardenability during quenching and on the tempering response (after hardening) are also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220273
EISBN: 978-1-62708-259-4
... guarantee a tough body in combination with a hard and wear-resistant working surface. Figure 10.73 shows the example of a manual sickle subjected to selective quenching, and Fig. 10.74 shows the flat end of a pick subjected to the same type of treatment. Fig. 10.73 Side face of a sickle polished...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410335
EISBN: 978-1-62708-265-5
... Grossmann-Bain approach or Jominy end-quench testing. It also explains how hardenability can be improved through the addition of boron, phosphorus, and other alloys. Grossmann-Bain approach hardenability hardness Jominy test martensite A MARTENSITIC MICROSTRUCTURE is the hardest...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730069
EISBN: 978-1-62708-283-9
... Abstract This chapter discusses ferrous metals, including low-carbon steels, stainless steels, and cast irons. It also provides information on hardening and hardenability and the tempering process. hardening tempering ferrous metals hardenability Jominy end-quench testing WHILE...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140083
EISBN: 978-1-62708-264-8
... discusses the effect of grain size and alloying elements and explains how Jominy end quench testing is used to evaluate the hardenability of steel. continuous transformation diagram hardenability hardness isothermal transformation diagram Jominy test steel THE PROFESSIONAL materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130255
EISBN: 978-1-62708-284-6
... the effects of materials and quench process design on distortion of steel during heat treating. Details on stress raisers and their role in quench cracking are then presented. The chapter ends with various selected case histories of failures attributed to the quenching process. quenching phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... the same hardness as that shown at 8 mm (5/16 in.) from the quenched end of a standard Jominy hardenability specimen made from the steel being quenched. Fig. 7 Grossmann chart relating bar diameter, hardenability...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850334
EISBN: 978-1-62708-260-0
... will be virtually unaffected by errors in defining the precise ends of the indents. Projected-area measurements are the only practical method for measuring distorted Vickers impressions. Equation ( 5-20 ) is used to compute Vickers hardnesses in such cases. For calculation of Knoop hardness, the load...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050263
EISBN: 978-1-62708-311-9
... not meeting a hardness specification, case depth specification, or pattern length or for having a defect such as melting or a quench crack. Recommendations for inspection and testing are discussed in Chapter 12, “Standards and Inspection,” in this book, along with methods for valid and reliable test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440027
EISBN: 978-1-62708-262-4
.... 20 and 21 . Instead, the hardenability of any grade varies considerably, which results in a hardenability band such as the 4150H band in Fig. 22 . This steel was normalized at 870 °C (1600 °F), then annealed at 845 °C (1550 °F) before end quenching. The upper and lower curves that represent the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250059
EISBN: 978-1-62708-287-7
... based on their “hardenability” as well as their chemical composition, and the “Jominy End Quench Test” is performed hundreds of times daily in steel mills and manufacturing plants all over the world to ensure their proper heat-treat performance. FIG. 5.7 Hardenability curve for SAE 4140 steel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140117
EISBN: 978-1-62708-264-8
... center of a rapidly quenched bar of 5140 steel superimposed on the continuous transformation curve There was a considerable amount of research done on water and oil quenching at approximately the time period when Jominy developed his test in the 1930s and 1940s. The cooling intensity was...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.9781627083263
EISBN: 978-1-62708-326-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240177
EISBN: 978-1-62708-251-8
... Jominy end-quench test is one of the simplest and most widely used. In this test, shown in Fig. 11.13 , a 10 cm (4 in.) long by 2.5 cm (1 in.) diameter normalized bar is first heated to the appropriate austenitization temperature, rapidly moved to a fixture, and then quenched at one end with a water...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... related to the cooling rates on Jominy end-quench test specimens ( Fig. 8 ). Positions along the Jominy bar are equivalent to cooling rates and can be expressed as equivalent bar diameters (see Chapter 4, “Hardness and Hardenability of Steels,” in this book). The difficulty with CCT diagrams is the...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... given heat treatment. Hardenability can be quantitatively defined by several methods. The Jominy end-quench test is one of the simplest and most widely used. In this test, shown in Fig. 13 , a 10 cm (4 in.) long by 2.5 cm (1 in.) diameter normalized bar is first heated to the appropriate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310029
EISBN: 978-1-62708-326-3
... quenched again to room temperature. For example, Fig. 17 shows an isothermal transformation diagram for a eutectoid steel. The diagram shows the beginning and end of the eutectoid transformation of austenite to pearlite for specimens cooled from the single-phase austenite field and held isothermally at...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310203
EISBN: 978-1-62708-326-3
... HC, with specified hardenability requirements. Figure 4 plots hardenability requirements, both minimum and maximum, for these steels. Other specifications require minimum hardness at one or two locations on the end-quench specimen. Fig. 4 End-quench hardenability limits for the hardenability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130417
EISBN: 978-1-62708-284-6
... induction heating and quenching, the use of magnetic flux concentrators to improve the efficiency of surface heating, and the quenching systems used for induction hardening. The discussion also provides information on time-temperature dependence in induction heating, workpiece distortion in induction...