By H. S. Khatak, Baldev Raj
This finished learn covers all kinds of corrosion of austenitic stainless-steel. It additionally covers equipment for detecting corrosion and investigating corrosion-related failure, including directions for bettering corrosion safeguard of steels.
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Extra info for Corrosion of austenitic stainless steels: Mechanism, mitigation and monitoring
Coupon corrosion testing is predominantly designed to investigate uniform corrosion. ASTM Designation: G31 gives a definite guideline for carrying out such an experiment. This practice describes accepted procedures, which includes specimen preparation, apparatus, test conditions, method of cleaning specimens, evaluation of results, calculation and reporting of corrosion rates. A good corrosion rate expression should involve (i) familiar units, (ii) easy calculation with minimum opportunity for error, (iii) ready conversion to life in years, (iv) penetration, and (v) whole numbers without cumbersome decimals.
Their creep strength is excellent up to 973 K, and can be further improved by alloying with N, Mo, Nb, Ti, W, V or B. In austenitic steels, at temperatures as low as -73 K, toughness is relatively unaffected, whereas their strength increases. They lend themselves remarkably to deep drawing and cold rolling, where their work-hardening characteristics enable high strength levels to be attained. Weldability is excellent, and welds, which do not transform to martensite during air-cooling, have mechanical properties similar to base metal.
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