Stainless Steels1. This trendy is issued below the constant designation a ; the range straight away following the designation suggests the yr. This standard is issued under the fixed designation A ; the 1 These practices are under the jurisdiction of ASTM Committee A01 on Steel. Last previous edition approved in as A – DOI: For referenced ASTM standards, visit the ASTM website, , or /A

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This test detects susceptibility to intergranular attack associated with the precipitation of chromium carbides and nitrides in stabilized and unstabilized ferric stainless steels. Fresh test solution would not be needed if the test were to run 48 or 72 h. A — 93 It may also be used to evaluate the resistance of high purity a76 stabilized grades to sensitization to intergranular attack caused by welding or heat treatments.

ASTM A763 – 15

It is generally completed by bringing astk two ends together in the vise. They should have three or four holes in them to increase circulation of the test solution around the specimen. Please first verify your email before subscribing to alerts. An air or hydraulic press may also be used for bending the specimens. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

The copper should s763 washed and degreased before use. Combinations of alloys and test methods for which successful experience is available are shown in Table 1. It may be applied to all wrought products and weld metal. As the voice of the U. Times for alloys not listed in Table 1 are subject to asfm between the supplier and the purchaser. The effect of galvanic coupling between copper and the test specimen may have importance 7.

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The tests can be run a7633 interruption. It has been reported that violent boiling resulting in acid spills can occur. NOTE 6—Measures should be taken to minimize bumping of the solution when glass cradles are used to support specimens. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Standards Subsctiption z763 be the perfect solution. NOTE 9—Cracking that originates at the edge of the specimen should be disregarded. Your Alert Profile lists the documents that will be monitored.

ASTM A() 铁素体不锈钢晶间腐蚀敏感性检测_百度文库

You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Shot is preferred for its ease of handling before and after the test. To avoid scale entrapment, stamp specimens for identi?

Proceed to Checkout Continue Shopping. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. More ferric sulfate must be added if the total weight loss of all specimens exceeds 2 g.

A — 93 FIG. Grind the cross section on wet or dry 80 or grit abrasive paper followed by successively? Welded samples should be bent in such a manner that weld and the heat-affected zone are strained.

Active view current version of standard. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

Current edition approved March 1, This abstract is a brief summary of the referenced standard. D Weight loss measurements can be used to detect severely sensitized material, but they are not very sensitive for alloys noted with this superscript and may not detect slight or moderate sensitization.

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Heavy specimens may require bending in a? Such treatment of test specimens is not permissible, except in tests undertaken to demonstrate such surface effects.

The size of the cradles should be such that they can pass through the ground-glass joint of the Erlenmeyer? This may be accomplished with the apparatus prescribed in 3.

This will ensure detection of intergranular attack resulting from carburizing of one surface of sheet material during the? Combinations of alloys and test methods for which successful experience is available are shown in Table 1. We have no amendments or corrections for this standard. Specimens with unacceptable microstructures should be subjected to Practices X, Y, or Z to better determine their susceptibility to intergranular attack.

A copper cradle may also be used. All traces of oxide scale formed during heat treatment must be removed. Historical Version s – view previous versions of standard. See Table 1 for a listing of alloys for which Practice W is appropriate.

A small amount of copper shot eight to ten pieces on the bottom of the? Additional requirements are noted where necessary. Your comments will receive careful consideration at a meeting of the responsible asmt committee, which you may attend. Types,and are nonstabilized grades that are generally not used in the as-welded or sensitized condition in other than mildly corrosive environments.

The choices are listed in Table 1.