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Book Evaluation of Stainless Steel Pipe Cracking

Download or read book Evaluation of Stainless Steel Pipe Cracking written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Leaks and cracks in the heat-affected zones of weldments in austenitic stainless steel piping and associated components of boiling water reactors (BWRs) have been observed since the mid-1960s. Since that time, cracking has continued to occur and indications have been found in all parts of the recirculation system, including the largest diameter lines. Proposed solutions include remedies primarily intended to produce a more favorable residual stress state, materials which are more resistant to stress corrosion cracking (SCC), and changes in the reactor environment which decrease the susceptibility to cracking. In addition to evaluating these remedies, it is also important to gain a better understanding of key variables such as residual stresses, crack growth rates, and the leak-before-break margin in flawed piping, which may impact regulatory decisions on operating plants. The main areas of effort during the past year have been (1) studies of impurity effects on susceptibility to intergranular stress corrosion cracking (IGSCC), (2) crack growth rate measurements, (3) finite-element studies of residual stress produced by induction heating stress improvement (IHSI) and the addition of weld overlays to flawed piping, (4) leak-before-break analyses of piping with 360° part-through cracks, and (5) parametric studies on the effect of through-wall residual stresses on IGSCC crack growth behavior in large-diameter piping weldments. 5 references, 15 figures, 2 tables.

Book Investigation and Evaluation of Stress corrosion Cracking in Piping of Light Water Reactor Plants

Download or read book Investigation and Evaluation of Stress corrosion Cracking in Piping of Light Water Reactor Plants written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1979 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Non Destructive Evaluation of Corrosion and Corrosion assisted Cracking

Download or read book Non Destructive Evaluation of Corrosion and Corrosion assisted Cracking written by Raman Singh and published by John Wiley & Sons. This book was released on 2019-04-09 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive text to the non-destructive evaluation of degradation of materials due to environment that takes an interdisciplinary approach Non-Destructive Evaluation of Corrosion and Corrosion-assisted Cracking is an important resource that covers the critical interdisciplinary topic of non-destructive evaluation of degradation of materials due to environment. The authors—noted experts in the field—offer an overview of the wide-variety of approaches to non-destructive evaluation and various types of corrosion. The text is filled with instructive case studies from a range of industries including aerospace, energy, defense, and processing. The authors review the most common non-destructive evaluation techniques that are applied in both research and industry in order to evaluate the properties and more importantly degradation of materials components or systems without causing damage. Ultrasonic, radiographic, thermographic, electromagnetic, and optical are some of the methods explored in the book. This important text: Offers a groundbreaking interdisciplinary approach to of non-destructive evaluation of corrosion and corrosion-assisted cracking Discusses techniques for non-destructive evaluation and various types of corrosion Includes information on the application of a variety of techniques as well as specific case studies Contains information targeting industries such as aerospace, energy, processing Presents information from leading researchers and technologists in both non-destructive evaluation and corrosion Written for life assessment and maintenance personnel involved in quality control, failure analysis, and R&D, Non-Destructive Evaluation of Corrosion and Corrosion-assisted Cracking is an essential interdisciplinary guide to the topic.

Book Report of the U S Nuclear Regulatory Commission Piping Review Committee

Download or read book Report of the U S Nuclear Regulatory Commission Piping Review Committee written by U.S. Nuclear Regulatory Commission. Piping Review Committee. Pipe Crack Task Group and published by . This book was released on 1984 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Chloride Stress corrosion Cracking of Stainless Steel Piping from the Synthane Coal Gasification Pilot Plant

Download or read book Chloride Stress corrosion Cracking of Stainless Steel Piping from the Synthane Coal Gasification Pilot Plant written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A leaking crack was discovered in an approx. 14-cm-long x 5.1-cm-OD section of stainless steel piping used to inject oxygen into the Synthane gasifier. The crack extended longitudinally for approx. 1 cm at the OD and approx. 5 cm at the ID. The leaking crack was one of several discovered at the ID; all were branched and transgraular, which is typical of chloride-assisted stress corrosion. Although one crack extended into the heat-affected zone of a nearby weld, welding was not a cause of the failure. The affected piping was specified to be Type 316 stainless steel in order to minimize pitting attack. However, a chemical analysis revealed that the molybdenum content was not within the manufacturer's specification for Type 316 stainless steel (0.34 wt % measured versus 2 to 3 wt % specified). A check valve downstream from the cracked section of pipe was also found by Synthane personnel to be defective and it is believed that steam may have leaked into the affected section. The steam may have been the source of the chlorides.

Book Stress Corrosion Cracking Evaluation of Several Precipitation Hardening Stainless Steels

Download or read book Stress Corrosion Cracking Evaluation of Several Precipitation Hardening Stainless Steels written by T. S. HUMPHRIES and published by . This book was released on 1969 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Circumferential Cracks in Pressure Vessels and Piping Analytical evaluation Experimental evaluation Instability and dynamic behavior

Download or read book Circumferential Cracks in Pressure Vessels and Piping Analytical evaluation Experimental evaluation Instability and dynamic behavior written by G. M. Wilkowski and published by . This book was released on 1984 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Slow Strain Rate Testing for the Evaluation of Environmentally Induced Cracking

Download or read book Slow Strain Rate Testing for the Evaluation of Environmentally Induced Cracking written by R. D. Kane and published by ASTM International. This book was released on 1993 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to predict when and how a material will crack under environmental conditions, engineers used to subject it to pressure for a long time, up to a year in cases; about 20 years ago, a testing method was developed that slowly but inexorably increases the pressure, which seems to cut down the ti

Book Fracture Analysis of Welded Type 304 Stainless Steel Pipe

Download or read book Fracture Analysis of Welded Type 304 Stainless Steel Pipe written by and published by . This book was released on 1986 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was performed to determine the fracture resistance of 4 in. diameter circumferentially welded type 304 stainless pipe at 550 F (288 C). Two crack geometries were investigated. These were a circumferential through wall crack (simple) and circumferential through wall crack superimposed on a 360 degree radial crack on the inside diameter of the pipe (complex). Test results were analyzed using J-integral and limit load techniques. Additionally, J-integral resistance curve tests were performed on large plan size compact tension specimens for comparison with the pipe specimen results. Results of the J-integral analysis indicate that J-initiation for pipes containing simple cracks was approximately 1120 kJ/sq m (6400 in-lb/sq in) and a factor of four decrease in J-initiation was noted for pipes containing the complex crack. Good agreement was shown at J-initiation between pipe specimens containing the simple crack geometry and compact tension specimens. The accuracy of the limit load analysis was variable for pipes containing the simple crack geometry with the average predicted limit load calculated using the ASME Code flow stress being 8.7% higher than that actually attained in the tests. The calculated limit loads based on the ASME Code flow stress were conservative for the complex crack cases.