ASTM G47-20 确定2XXX和7XXX铝合金产品应力腐蚀敏感性的标准试验方法.pdf

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standartis.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:G47-20 INTERNATIONAL Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products This standard is issued under the fixed designation G47;the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superseript epsilon (e)indicates an editorial change since the last revision or reapproval. This standand has been approved for use by agencies o f the U.S.Deparunent of Defense. 1.Scope G38 Practice for Making and Using C-Ring Stress- 1.1 This test method covers a uniform procedure for char- Corrosion Test Specimens acterizing the resistance to stress-corrosion cracking (SCC)of G44 Practice for Exposure of Metals and Alloys by Alternate high-strength aluminum alloy wrought products for the guid- Immersion in Neutral 3.5 Sodium Chloride Solution ance of those who perform stress-corrosion tests for those who G49 Practice for Preparation and Use of Direct Tension prepare stress-corrosion specifications and for materials engi- Stress-Corrosion Test Specimens...