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Jominy test

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220273
EISBN: 978-1-62708-259-4
... also discusses the concepts of hardenability, critical diameter, quench severity, and Jominy testing. annealing carburizing normalizing quenching steel tempering hardenability Jominy testing quench cracking The aim of this chapter is to discuss the main conventional heat treatments...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440283
EISBN: 978-1-62708-262-4
... for surface hardness, effective case depth, and core hardness. The test pin diameter chosen was based on the gear tooth thickness and the fact that the test pin center cooling rate would be on the steeper portion of the Jominy hardenability curve. This meant that monitoring the center core hardness of...
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 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 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...
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
... Abstract Hardness tests provide valuable information about the quality of materials and how they are likely to perform in different types of service. This chapter covers some of the most widely used hardness testing methods, including Vickers, Rockwell, and Brinell tests, Shore scleroscope and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440027
EISBN: 978-1-62708-262-4
.... Source: Ref 4 Fig. 6 Automatic Rockwell testing system for high production work (Jominy specimens are being tested). Source: Ref 3 The Vickers hardness test is similar to the Brinell principle in that an indenter of definite shape is pressed into the material to be tested, 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
... a part is capable of hardening to the hardness depths shown, as tested by the Jominy hardness test. The curves themselves provide an indication of specific capability of large number of heats of steel ranging from surface hardness to the hardnesses at depths below the surface. It is prudent to be...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250059
EISBN: 978-1-62708-287-7
... martensite layers. A major breakthrough came when Walter P. Jominy and A.L. Boegehold at the Research Laboratories Division of General Motors Corp. developed a test for measuring the “hardenability” of any particular steel or heat of steel. This test consisted of heating a one-inch-round by three-inch...
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
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 December 2001
DOI: 10.31399/asm.tb.aub.t61170062
EISBN: 978-1-62708-297-6
... tempering, or austempering. Hardenability is normally measured by the Jominy test described in ASTM A 255 and SAE J406, in which a standard-sized bar (1 in. diameter by 4 in. in length) is austenitized and water quenched from one end. The variation in cooling rate results in micro-structural variations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130417
EISBN: 978-1-62708-284-6
... material. The third level of the surface-integrity description includes tests making clear the behavior of the given part under the operating conditions. As essential advantage of induction surface hardening is that it is possible to achieve a sufficient repeatability of the hardened layer thickness on...
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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050093
EISBN: 978-1-62708-311-9
... hardened to only 35 HRC may have very high hardenability. Hardenability refers to the capacity of a steel to harden to a specified harden or hardness range at given depths. Deep-hardening steels, such as alloy steels, are said to have high hardenability. The Jominy hardenability (end-quench) test is...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
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...
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.t59310163
EISBN: 978-1-62708-326-3
..., and counter-measures considered should embrittled material be detected at any time during manufacture or subsequent service. It is not always possible to detect embrittlement by tension testing or hardness testing. In most instances, embrittled material has higher hardness, higher strength, and...