Download or read book Effect of Nitrogen on the Sensitization Corrosion and Mechanical Properties of 18Cr 8ni Stainless Steels written by JJ. Eckenrod and published by . This book was released on 1979 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern stainless steel melting and refining techniques now make it possible to consider nitrogen as an economic and controllable alloying addition to 18Cr-8Ni austenitic stainless steels. Studies show that nitrogen additions of up to about 0.16 percent to 18Cr-8Ni steels can result in some improved properties. Nitrogen is a strong strengthening element to 18Cr-8Ni steels and will increase yield strength by about 5.5 to 6.2 MPa (800 to 900 lb/in.2) for each 0.01 percent nitrogen. Isothermal time-temperature sensitization (TTS) diagrams developed for 18Cr-8Ni steels containing about 0.05 percent carbon and up to 0.25 percent nitrogen indicate that nitrogen at least up to 0.16 percent retards intergranular carbide precipitation. Corrosion tests on isothermally sensitized or welded specimens show reduced corrosion rates with nitrogen additions consistent with the TTS data. For low-carbon 18Cr-8Ni steels, nitrogen additions up to 0.15 percent have no apparent effect on the normally excellent sensitization resistance of these steels, at least as measured by corrosion tests on isothermally heated or welded specimens. Nitrogen additions were also found to improve pitting and crevice corrosion resistance as evaluated in anodic polarization or chloride pitting/crevice corrosion tests. Stress corrosion evaluations were conducted on solution-annealed material using constrained U-bend specimens in both severe and milder environments. The results indicated that nitrogen content up to 0.16 percent did not significantly affect stress corrosion cracking susceptibility, but 0.25 percent nitrogen appeared detrimental in some environments.
Download or read book Influence of Nitrogen on the Sensitization Corrosion Mechanical and Microstructural Properties of Austenitic Stainless Steels First Annual Progress Report written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During this first year of the project, the research effort has concentrated on the electrochemical aspects of the effect of nitrogen on austenitic steels. The status of all the individual project tasks are outlined briefly, and then more detailed results of the electrochemical studies conducted so far are reported. Highlights of this quarter are: (1) nitrogen additions of up to 0.16 wt % retard sensitization of 18Cr-8Ni austenitic stainless steels. However, nitrogen additions to levels above approx. 0.25 wt % promote sensitization; (2) the retardation of sensitization by nitrogen can possibly be explained as being due to retardation of the nucleation or rate of growth of chromium carbides; and (3) polarization studies in high temperature 0.01 M Na2SO4 solutions at 250°C demonstrate that the sensitized alloys are electrochemically more active than the solution annealed materials thereby indicating that they are susceptible to intergranular attack.
Download or read book Properties of Austenitic Stainless Steels and Their Weld Metals Influence of Slight Chemistry Variations written by C. R. Brinkman and published by ASTM International. This book was released on 1979 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Nitrogen on the Sensitization Corrosion Mechanical and Microstructural Properties of Stainless Steels written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frontiers in Materials Science written by B. Raj and published by Universities Press. This book was released on 2005 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents contributions by a galaxy of eminent scientists and technologists from the world over in broad spectrum of areas in materials science, providing a global perspective on complex issues of current concern and the direction of research in these areas.
Download or read book Corrosion of Austenitic Stainless Steels written by H S Khatak and published by Elsevier. This book was released on 2002-10-14 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive study covers all types of corrosion of austenitic stainless steel. It also covers methods for detecting corrosion and investigating corrosion-related failure, together with guidelines for improving corrosion protection of steels. Details all types of corrosion of austenitic stainless steel Covers methods for detecting corrosion and investigating corrosion-related failure Outlines guidelines for improving corrosion protection of steels
Download or read book Corrosion Sensitization Behavior and Mechanical Properties of Liquid nitrogen deformed Austenitic 304 Stainless Steel written by Julio Gerardo Maldonado and published by . This book was released on 1997 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Nitrogen on Sensitization and Stress Corrosion Cracking of AISI 304 Stainless Steels written by T. Arul Mozhi and published by . This book was released on 1986 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elevated Temperature Properties as Influenced by Nitrogen Additions to Types 304 and 316 Austenitic Stainless Steels written by and published by ASTM International. This book was released on 1973 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metallurgy and Technology of Steel Castings written by Jan Głownia and published by Bentham Science Publishers. This book was released on 2017-12-22 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallurgy and Technology of Steel Castings is a comprehensive textbook for students and professional engineers in the field of foundry engineering and materials science. The topics covered in this book explain the association between the quality of liquid metal and the properties of the finished cast. Readers will learn about the thermodynamic conditions for addition and recovery of chemical elements (such as Cr, Ni and Mo) in steel, degasifying processes, the influence of alloying additives for manufacturing steel castings that operate in extreme temperatures, anti-corrosive steels and basic cast conditions for making the castings (pouring and heat treatment systems). Metallurgy and Technology of Steel Castings gives readers essential information about steel and steel cast manufacturing processes and equips them with the knowledge to overcome the challenges faced in the foundry environment.
Download or read book Bionanomaterials for Dental Applications written by Mieczyslaw Jurczyk and published by CRC Press. This book was released on 2012-10-26 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the structure and characteristics of nanomaterials and their applications in dentistry. With currently available implant materials, the clinical failure rate varies from a few percent to over 10 percent and new materials are clearly needed. Nanomaterials offer the promise of higher strength, better bonding, less toxicity, and enhanced cytocompatibility, leading to increased tissue regeneration. Mieczyslaw Jurczyk, director of the Institute of Materials Science and Engineering at the Poznan University of Technology in Poland, has drawn from work in his laboratory and elsewhere in Poland to show that nanomaterials have important biological applications including in the stomatognathic system consisting of mouth, jaws, and associated structures. The book is written from a materials science and medical point of view and has 13 chapters and about 400 pages. The book can be divided approximately into three sections: the first five chapters introduce nanobiomaterials, the next five chapters describe their dental applications, and the last chapters describe their biocompatibility. Chapter 3 is a compendium on metallic biomaterials such as stainless steel, cobalt alloys, and titanium alloys; bioactive, bioresorbable polymers; and composites and ceramic biomaterials. The "top-down" approach to producing nanomaterials such as high-energy ballmilling and severe plastic deformation, as well as Feynman’s "bottom-up technique" of building atom by atom, are discussed in the next chapter. Subsequent chapters discuss each material in depth and point out how new architectures and properties emerge at the nanoscale. Chapter 8 is devoted to shape-memory materials, which now include not only NiTi but also polymers and magnetic materials. In order to improve bonding, nanomaterials can be used to synthesize implants with surface roughness similar to that of natural tissues. Chapter 9 is devoted to different surface treatments for Ti-based nanomaterials, such as anodic oxidation to improve the bioactivity of titanium and improve the corrosion resistance of porous titanium and its alloys. The use of carbon in various forms—nanoparticles, nanofibers, nanotubes, and thin films—is discussed next with emphasis on the microstructure and properties of these materials, their implant applications, and their interaction with subcutaneous tissues. Nanomaterials can be used in preventive dentistry and therefore can reduce the amount of dental treatment that is necessary to maintain a healthy mouth as argued in chapter 11. In a subsequent chapter, the author explains osseointegration (direct bone-to-metal interface) from a biological point of view and early tissue response. The mechanism of the interaction between the implanted materials with the cellular protein in the tissues is described. The last chapter discusses the application of new nanostructured materials in permanent and bioresorbable implants, nanosurface dental implants, and nanostructured dental composite restorative materials. This book not only focuses on nanomaterials but also on nanoengineering to achieve the best results in dentistry. It is recommended to anyone interested in nanomaterials and their applications in dental science. People with a background in materials, chemistry, physics, and biology will benefit from it.
Download or read book High Performance Stainless Steels written by Curtis W. Kovach and published by . This book was released on 2000 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elevated Temperature Properties as Influenced by Nitrogen Additions to Types 304 and 316 Austenitic Stainless Steels written by Symposium on Elevated Temperature Properties as Influenced by Nitrogen Additions to Types 304 and 316 Austenitic Stainless Steels and published by . This book was released on 1973 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Manganese High Nitrogen Austenitic Steels written by R. A. Lula and published by ASM International(OH). This book was released on 1993 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings contain the papers presented at two conferences held at ASM International's Materials Week DEGREES87 and Materials Week DEGREES92 respectively. Most of the 1987 papers deal with the properties of various high-manganese steels for specific use: valve steels, free-machining steels,
Download or read book The Effects of Nitrogen and Nickel on the Microstructure and Mechanical Properties of 16 Wt percent Chromium Stainless Steels written by Ross Hutchison and published by . This book was released on 1991* with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Nitrogen on Sensitization and Stress Corrosion Cracking of AISI 304 Stainless Steel written by T. Arul Mozhi and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Nitrogen Alloying on the Properties of Austenitic Stainless Steels with Emphasis on Corrosion Resistance and Precipitation Kinetics written by Rachel Jargelius and published by . This book was released on 1983 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
