GB/T 23606-2009Copper-hydrogen embrittlement test method (English PDF)

Foreword

This revised standard adopts ISO 2626. 1973 "Copper - Hydrogen embrittlement test" on the main technical content and ISO 2626. 1973 same, but some Technical indicators and requirements increase, part of a more detailed and specific, write structure does not correspond exactly. The number of standard clauses ISO 2626. 1973 reg number of the standard controls see Appendix A, specific technical differences between this standard, see Appendix B.

The Standard Appendix A, Appendix B is an informative annex.

The standard proposed by China Nonferrous Metals Industry Association.

This standard Nonferrous Metals by the National Standardization Technical Committee.

The standard by Chinalco Luoyang Copper Co., Ltd. is responsible for drafting.

1 Scope

This standard specifies the method deoxidized copper and oxygen-free hydrogen embrittlement tests.

This standard applies to deoxidized copper and oxygen-free hydrogen embrittlement test.

Principle 2

Samples heated in an atmosphere containing hydrogen, oxygen copper reaction with hydrogen, which causes brittleness, in the case of the sample without contact with the cooling air to room temperature, the use of closed bending, repeated bending or by the method of metallurgical testing to determine the status of copper hydrogen embrittlement.

3 Terms and Definitions

The following terms and definitions apply to this standard.

Hydrogen embrittlement refers to the copper at high temperatures exposed to a reducing atmosphere of hydrogen, since the reaction of copper oxide with a reducing gas containing hydrogen causes Grain boundary cracking caused by plastic lower phenomenon.

4 Test device

4.1 hydrogen annealing apparatus.

4.2 bending test machine.

4.3 vise.

4.4 microscope.

4.5 electrolytic polishing and mechanical polishing apparatus.

5 Sample