NASA Technical Memorandum PDF Download

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 492

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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725780422
Category :
Languages : en
Pages : 36

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Book Description
An investigation was conducted to determine the cause of the failure of a massive AISI Type 316 stainless steel valve which controlled combustion air to a jet engine test facility. Several through-the-wall cracks were present near welded joints in the valve skirt. The valve had been in outdoor service for 18 years. Samples were taken in the cracked regions for metallographic and chemical analyses. Insulating material and sources of water mist in the vicinity of the failed valve were analyzed for chlorides. A scanning electron microscope was used to determine whether foreign elements were present in a crack. On the basis of the information generated, the failure was characterized as external stress-corrosion cracking. The cracking resulted from a combination of residual tensile stress from welding and the presence of aqueous chlorides. Recommended countermeasures are included. Moore, Thomas J. and Telesman, Jack and Moore, Allan S. and Johnson, Dereck F. and Kuivinen, David E. Glenn Research Center NASA-TP-3190, E-6810, NAS 1.60:3190 RTOP 505-62-84...

Author: Curtis W. Kovach
Publisher:
ISBN:
Category : Stainless steel
Languages : en
Pages : 96

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Author: Y. Frank Cheng
Publisher: John Wiley & Sons
ISBN: 1118537084
Category : Science
Languages : en
Pages : 292

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Explains why pipeline stress corrosion cracking happens and how it can be prevented Pipelines sit at the heart of the global economy. When they are in good working order, they deliver fuel to meet the ever-growing demand for energy around the world. When they fail due to stress corrosion cracking, they can wreak environmental havoc. This book skillfully explains the fundamental science and engineering of pipeline stress corrosion cracking based on the latest research findings and actual case histories. The author explains how and why pipelines fall prey to stress corrosion cracking and then offers tested and proven strategies for preventing, detecting, and monitoring it in order to prevent pipeline failure. Stress Corrosion Cracking of Pipelines begins with a brief introduction and then explores general principals of stress corrosion cracking, including two detailed case studies of pipeline failure. Next, the author covers: Near-neutral pH stress corrosion cracking of pipelines High pH stress corrosion cracking of pipelines Stress corrosion cracking of pipelines in acidic soil environments Stress corrosion cracking at pipeline welds Stress corrosion cracking of high-strength pipeline steels The final chapter is dedicated to effective management and mitigation of pipeline stress corrosion cracking. Throughout the book, the author develops a number of theoretical models and concepts based on advanced microscopic electrochemical measurements to help readers better understand the occurrence of stress corrosion cracking. By examining all aspects of pipeline stress corrosion cracking—the causes, mechanisms, and management strategies—this book enables engineers to construct better pipelines and then maintain and monitor them to ensure safe, reliable energy supplies for the world.

Author: American Welding Society. Committee on Filler Metals and Allied Materials
Publisher:
ISBN: 9780871718211
Category : Electric welding
Languages : en
Pages : 42

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Book Description
Composition and other requirements are specified for more than forty classifications of covered stainless steel welding electrodes. The requirements include general requirements, testing, and packaging. Annex A provides application guidelines and other useful information about the electrodes. This specification makes use of both U.S. Customary Units and the International System of Units [SI]. Since these are not equivalent, each system must be used independently of the other.

Author: K. Elayaperumal
Publisher: John Wiley & Sons
ISBN: 1119043115
Category : Science
Languages : en
Pages : 256

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Book Description
Provides corrosion basics in a lucid manner to students and working professionals and over 80 corrosion-failure analysis case studies Correlates Failure Analysis with Corrosion Science Exclusively provides corrosion-related failure analysis case histories in one place in a convenient format One-stop shop for both science and real time occurrence of the phenomenon of corrosion Full coverage of all MOC, Materials of Construction, used for process equipments Simple but Lucid presentation of Failure Analysis procedure

Author: U.S. Nuclear Regulatory Commission
Publisher:
ISBN:
Category : Nuclear industry
Languages : en
Pages : 32

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A compilation of currently available electronic versions of NRC regulatory guides.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Lauralice de Campos Franceschini Canale
Publisher: ASM International
ISBN: 1615030980
Category : Technology & Engineering
Languages : en
Pages : 651

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Book Description

Author: Marc Hellemans
Publisher: Elsevier
ISBN: 0080961185
Category : Technology & Engineering
Languages : en
Pages : 327

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Book Description
The Safety Valve Handbook is a professional reference for design, process, instrumentation, plant and maintenance engineers who work with fluid flow and transportation systems in the process industries, which covers the chemical, oil and gas, water, paper and pulp, food and bio products and energy sectors. It meets the need of engineers who have responsibilities for specifying, installing, inspecting or maintaining safety valves and flow control systems. It will also be an important reference for process safety and loss prevention engineers, environmental engineers, and plant and process designers who need to understand the operation of safety valves in a wider equipment or plant design context. - No other publication is dedicated to safety valves or to the extensive codes and standards that govern their installation and use. A single source means users save time in searching for specific information about safety valves - The Safety Valve Handbook contains all of the vital technical and standards information relating to safety valves used in the process industry for positive pressure applications. - Explains technical issues of safety valve operation in detail, including identification of benefits and pitfalls of current valve technologies - Enables informed and creative decision making in the selection and use of safety valves - The Handbook is unique in addressing both US and European codes:- covers all devices subject to the ASME VIII and European PED (pressure equipment directive) codes;- covers the safety valve recommendations of the API (American Petroleum Institute);- covers the safety valve recommendations of the European Normalisation Committees;- covers the latest NACE and ATEX codes;- enables readers to interpret and understand codes in practice - Extensive and detailed illustrations and graphics provide clear guidance and explanation of technical material, in order to help users of a wide range of experience and background (as those in this field tend to have) to understand these devices and their applications - Covers calculating valves for two-phase flow according to the new Omega 9 method and highlights the safety difference between this and the traditional method - Covers selection and new testing method for cryogenic applications (LNG) for which there are currently no codes available and which is a booming industry worldwide - Provides full explanation of the principles of different valve types available on the market, providing a selection guide for safety of the process and economic cost - Extensive glossary and terminology to aid readers' ability to understand documentation, literature, maintenance and operating manuals - Accompanying website provides an online valve selection and codes guide.