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rebound methods

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Published: 01 October 2011
Fig. 11 Rebound hardness tester in accordance with the Nitronic method. Courtesy of Nitronic AG More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310067
EISBN: 978-1-62708-346-1
... is measured: After the remaining deformation of the test surface has taken place, the remaining elastic residual energy of the rebound is measured. This is an unequivocal material parameter for the mechanical behavior of the specimen. This method is also called the “rebound hardness test.” This chapter...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.9781627083461
EISBN: 978-1-62708-346-1
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720085
EISBN: 978-1-62708-305-8
... methods account for virtually all routine hardness testing in the metalworking industry. Static indentation hardness testing is the more widely used of the two methods, although rebound testing is extensively employed, particularly for hardness measurements on large workpieces or for applications in which...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... estimated adhesion and rebound energies and postulated that bonding would occur if the former is greater than the latter. There have also been analytical treatments of the problem by the inventors of the cold spray process ( Ref 3.46 ). They proposed a method for the estimation of the overall strain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310119
EISBN: 978-1-62708-346-1
... rebound hardness testing method is used. In accordance with the standard ISO 8307 ( Ref 23 ), a steel sphere with a diameter of 16 mm (0.63 in.) is dropped onto the sample from a height of 500 mm (19.7 in.), and the height to which it bounces back is measured. The easiest way to do this is to measure...
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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440027
EISBN: 978-1-62708-262-4
... against the surface of the material from a fixed height and the hardness expressed in terms of height to which the hammer rebounds. History of Hardness Testing According to the records, the first method of evaluating hardness was developed in 1772, when Reaumur devised a procedure of pressing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460017
EISBN: 978-1-62708-285-3
... is stored elastically in particle and substrate during the impact. Thus, bonding in the ASI zones by cooling must take place within a certain limited time frame and should be sufficiently strong to withstand the elastic rebound energies ( Ref 2.48 , 2.49 ) of particle and substrate. At the time of onset...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310001
EISBN: 978-1-62708-346-1
... for the instrumented indentation test with mechanical, hydraulic depth measurement. 1900 J.A. Brinell developed the ball indentation test. 1907 P. Ludwik reported on a cone probe used both statically and dynamically. A.F. Shore created the rebound hardness measuring method. E. Meyer set up the power law...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460001
EISBN: 978-1-62708-285-3
..., to achieve good bonding in cold spray the impact velocity of the spray particles must exceed a critical minimum to produce a hydrodynamic shear instability at the bond interface that is essential for good bonding. If the impact velocity is too low, the particles will simply rebound and abrade the surface...
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
..., ranging from the use of heat-treating furnaces to lasers, while cooling methods can range from cooling in air to quenching with water. Regardless of the method of heating and cooling used, metallurgical processes can be described scientifically. Iron and Steel Fundamentally, all steels are alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
... combinations of engineering materials and coatings. It also describes the causes and effects of the most common forms of wear, the conditions under which they occur, the role of lubrication, and wear testing methods. friction coefficient lubrication wear wear testing FRICTION, WEAR...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.9781627082600
EISBN: 978-1-62708-260-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.t51180061
EISBN: 978-1-62708-256-3
... wonderful until you realize that the absolute increase was the introduction of two new products versus last year’s one new product, which is not so impressive. Make sure the statistics make sense; do not follow them blindly. Statistical Methods Statistical methods must also be selected with care...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460121
EISBN: 978-1-62708-285-3
...-substrate interface. Evaluating the coating residual stress and the coating relaxation behavior after thermal treatments becomes imperative to establish the reliable functionality of the coating for the proposed application. Microstructural characterization methods including optical microscopy, scanning...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780115
EISBN: 978-1-62708-281-5
... becomes rubbery. The T g is also a measure of the onset of long-range molecular movement in the plastic. Because the transition from glass to rubber is not a thermodynamic transition, but rather a manifestation of viscoelasticity, the exact value of the T g depends on the method used to measure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480001
EISBN: 978-1-62708-318-8
... with additional TiO 2 this was reduced to 2%. The first pure titanium metal was prepared in the United States by M.A. Hunter at the General Electric Company in 1906. Hunter followed the methods of Nilson and Peterson and excluded air from the apparatus. He obtained metallic titanium practically free...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460185
EISBN: 978-1-62708-285-3
..., no combustible gases, such as H 2 , are involved. Little or no postcoating finishing: As-sprayed coatings have a smoother finish than those deposited by other methods. Little or no posttreatment for management of thermal stresses: Deposition occurs in the solid state, there is no heat-affected zone...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240201
EISBN: 978-1-62708-251-8
... loads or forces. Since the results of these tests are often used by regulatory agencies, it is important that these test methods are consistent and standardized. In the United States, ASTM International is the most widely recognized source of standardized testing procedures. Fig. 12.1 States...