Nondestructive Rapid Identification of Metals and Alloys by Spot Test

Nondestructive Rapid Identification of Metals and Alloys by Spot Test

Author: M. L. Wilson

Publisher: ASTM International

Published: 1986

Total Pages: 58

ISBN-13: 0803105282

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The analyst should familiarize himself with the metals and alloys he expects to encounter including normal processing methods involved in fabricating the finished products. He should become familiar with the flow diagrams and procedures for determining constituent alloys in the various metal families listed in this publication. Normal cleaning processes must be observed on metals at test areas to remove dirt, grease, oxides, or metallic coatings such as nickel, zinc, tin, aluminum, etc., prior to performing a test. Cleaning solvents, files, or abrasives can be used as applicable. After properly cleaning the test area, the analyst should follow detailed instructions for each test relative to chemicals used, number of drops, and time allowed for each reaction. Procedures for determining constituent alloys in various metal families can be used independently of the flow diagrams; however, some tests on the flow diagrams refer the analyst to tests listed in the metal family procedures. Qualitative analysis can be performed on unknown metals and alloys by following the procedures for determining alloys in a given alloy family.


Corrosion Testing for Metal Finishing

Corrosion Testing for Metal Finishing

Author: V. E. Carter

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 128

ISBN-13: 148316098X

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Corrosion Testing for Metal Finishing provides metal finishers with a range of test methods as well as guidance in the choice of method for a particular finish. There is a wide range of corrosion test methods available, the majority being the subject of Standard Specifications or being brought to Standards status. With many product Standards there is a choice of test methods available to met the Standard requirements. It is hoped that the relevant choice may be obtained more easily as a result of the information published in this book. The book outlines the apparatus and procedure for each test method and discusses its applicability to different metals and finishes. Indications are given of the nature and extent of the corrosion which develops in the test. Reference is also made to the relevant Standards for each test method. The book begins with a discussion of the basic requirements for corrosion testing of finished metal products. Subsequent chapters are devoted to testing procedures such as humidity tests, salt fog tests, industrial atmosphere test, porosity test, and anti-perspiration tests.