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Mechanical properties Rockwell

Tests for indention under load are performed basically like the ASTM measure the hardness of other materials, such as metals and ceramics. There are at least four popular hardness scales in use. Shore A and Shore D is for soft to relatively hard plastics and elastomers. Barcol is used from the mid-range of Shore D to above it as well as RPs. Rockwell M is used for very hard plastics (Chapter 5, MECHANICAL PROPERTY, Hardness),... [Pg.411]

Mechanical properties Shore hardness, D Rockwell hardness, R Rockwell hardness, M Stress at yield (MPa)... [Pg.624]

Rockwell hardness of PSF increased with a small dose by irradiation at the Tg, and it tended to decrease at the lower or higher temperatures, though the major chemical reaction was the main chain scission. Even if the chain scission was predominant, the decay in mechanical properties as well as the coloring were scarcely observed, because the number of chain scissions would be very small in the dose range up to 10 kGy. [Pg.332]

Sie] Rockwell hardness, Stahl-Eisen-Pmfblatt tensile testing Mechanical properties of sintered compacts... [Pg.347]

KU] Rockwell hardness, impact toughness, bending strength, microhardness Mechanical properties of sintered materials... [Pg.42]

Source L Rosales, K. Ono, A. Somer and UV. Lee, Microstructures and Mechanical Properties of Thennomechanicaly Treated High-Strengih Beta-Titanium Alloys, North American Rockwell Corporation Report NA-72-232, Feb 1972 reported ki Beta Vta-nitmABoys, R.Wood, Ed., MCIC-72-11,1972, p 118... [Pg.419]

Hardness is a measurement of material resistance to plastic deformation in most cases. It is a simple nondestructive technique to test material indentation resistance, scratch resistance, wear resistance, or machinability. Hardness testing can be conducted by various methods, and it has long been used in analyzing part mechanical properties. In reverse engineering, this test is also widely used to check the material heat treatment condition and strength, particularly for a noncritical part, to save costs. The hardness of a material is usually quantitatively represented by a hardness number in various scales. The most utilized scales are Brinell, Rockwell, and Vickers for bulk hardness measurements. Knoop, Vickers microhardness, and other microhardness scales are used for very small area hardness measurements. Rockwell superficial and Shore scleroscope tests are used for surface hardness measurements. Surface hardness can also be measured on a nanoscale today. [Pg.93]

Figure 7.32 Mechanical and thennal properties of polyblends (PPE/PE S). IIS Izod Impact Strength (J/m) FM Flexural Modulus (Mpa) DTUL D ection Temp. (°C) RH Rockwell Hardness (R-scale)... Figure 7.32 Mechanical and thennal properties of polyblends (PPE/PE S). IIS Izod Impact Strength (J/m) FM Flexural Modulus (Mpa) DTUL D ection Temp. (°C) RH Rockwell Hardness (R-scale)...
See other pages where Mechanical properties Rockwell is mentioned: [Pg.101]    [Pg.1258]    [Pg.862]    [Pg.242]    [Pg.108]    [Pg.2383]    [Pg.733]    [Pg.99]    [Pg.364]    [Pg.82]    [Pg.174]    [Pg.314]    [Pg.2579]    [Pg.30]    [Pg.403]    [Pg.379]    [Pg.472]    [Pg.15]    [Pg.176]    [Pg.398]    [Pg.191]   
See also in sourсe #XX -- [ Pg.7 ]



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