Bibliography of Hardness and Hardness Testing
نویسندگان
چکیده
منابع مشابه
Testing of Macroscopic Hardness by Acoustic Response
ČERNÝ MICHAL, ŠUSTR MICHAL, DOSTÁL PETR. 2016. Testing of Macroscopic Hardness by Acoustic Response. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(3): 751–758. Static measurement of macroscopic hardness (hereina er macrohardness) of metal materials by using indentation testing is accompanied by deformation in the vicinity of the indenter. Its indenting in a material...
متن کاملLow-Load Vickers Microindentation Hardness Testing
ADVANCED MATERIALS & PROCESSES • APRIL 2012 I n 1925 in the UK, Smith and Sandland developed an indentation test that used a squarebased pyramidal-shaped indenter made of diamond[1]. The test was developed because the Brinell test (introduced in 1900), which (until recently) used a round hardened steel ball indenter, could not test steels harder than ~450 HB (~48 HRC). They chose this shape wit...
متن کاملAccuracy of Standard Blocks for Hardness and Uncertainty of Hardness
− The authors numerically discuss the accuracy of the hardness values of standard hardness blocks by evaluating the uniformity of hardness blocks and the resolution of hardness values according to test method. As a result of reviewing the results of this evaluation and the reasonability of the currently proposed method for evaluating the uncertainty of hardness values, it is revealed that the v...
متن کاملNP-hardness of polytope M-matrix testing and related problems
In this note we prove NP-hardness of the following problem: Given a set of matrices, is there a convex combination of those that is a nonsingular M-matrix? Via known characterizations of M-matrices, our result establishes NP-hardness of several fundamental problems in systems analysis and control, such as testing the instability of an uncertain dynamical system, and minimizing the spectral radi...
متن کاملVerifiability, Hardness, and Information Asymmetries about Verifiability and Hardness
1 When fair value cannot be measured by reference to matters that are directly observable, and if the measure represents little more than the measurer's state of mind, neither the measurement nor the measurement method are verifiable. In those circumstances, the independent auditor has a scope limitation and should not express an unqualified opinion on the financial statements that are material...
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ژورنال
عنوان ژورنال: Acta Crystallographica
سال: 1956
ISSN: 0365-110X
DOI: 10.1107/s0365110x56002394