ASTM G 77 Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-On-Ring Wear Test
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ASTM G 77 Document Information:
Title
Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-On-Ring Wear Test
ASTM International
Publication Date:
May 1, 2005
Scope:
This test method covers laboratory procedures for determining the
resistance of materials to
sliding wear. The test utilizes a block-on-ring friction and wear
testing machine to rank pairs of
materials according to their sliding wear characteristics under
various conditions.
An important attribute of this test is that it is very flexible. Any
material that can be
fabricated into, or applied to, blocks and rings can be tested. Thus,
the potential materials
combinations are endless. However, the interlaboratory testing has
been limited to metals. In
addition, the test can be run with various lubricants, liquids, or
gaseous atmospheres, as desired,
to simulate service conditions. Rotational speed and load can also be
varied to better correspond
to service requirements.
The values stated in SI units are to be regarded as the standard. The
values given in parentheses
are for information only. Wear test results are reported as the volume
loss in cubic millimetres
for both the block and ring. Materials of higher wear resistance will
have lower volume loss.
This standard does not purport to address the safety concerns, if any,
associated with its use. It
is the responsibility of the user of this standard to establish
appropriate safety and health
practices and determine the applicability of regulatory limitations
prior to use.
Keywords:
- block-on-ring
- metal
- sliding
- wear
- wear test
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