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Control Of Cryogenic Intergranular Fracture In High Manganese Austenitic Steels
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Book Synopsis Control of Cryogenic Intergranular Fracture in High-manganese Austenitic Steels by :
Download or read book Control of Cryogenic Intergranular Fracture in High-manganese Austenitic Steels written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The sources of cryogenic intergranular embrittlement in high-Mn austenitic steels and the conditions necessary for its control are examined. It is shown that the high-Mn alloys are inherently susceptible to intergranular embrittlement due to both their low grain boundary cohesion and heterogeneous deformation characteristics. Extrinsic sources of embrittlement which could account for the transition behavior are not observed. An Auger electron spectroscopy (AES) study shows no indication of impurity-segregation-induced embrittlement. No grain boundary precipitation is observed, and austenite stabilization does not ensure ductile fracture. The influence of chemistry modifications on the ductile-to-brittle transition behavior were also examined through additions of N, Cr, and C to binary Fe-31 Mn. Nitrogen additions increase the 77K yield strength at a rate of 2200 MPa per weight percent N, and increase the austenite stability, but also increase the susceptibility of ternary alloys to intergranular fracture. Quaternary Cr additions are effective in increasing the N solubility, and lower the transition temperature. Carbon additions result in complete suppression of intergranular fracture at 77K. Qualitatively significant changes in the deformation heterogeneity with chemistry modifications are not observed. The temper-toughening of Fe-Mn-Cr-N alloys is associated with the grain boundary segregation of boron and the redistribution of N. Both boron and carbon are expected to inhibit intergranular fracture through increases in grain boundary cohesion.
Book Synopsis Control of Cryogenic Intergranular Fracture in High-Mn Austenitic Steels by : Michael Jay Strum
Download or read book Control of Cryogenic Intergranular Fracture in High-Mn Austenitic Steels written by Michael Jay Strum and published by . This book was released on 1986 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Manganese, High Nitrogen Austenitic Steels by : R. A. Lula
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 Energy Research Abstracts written by and published by . This book was released on 1988 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1987 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1985 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fatigue Crack Growth Behavior in a Nitrogen-Strengthened High-Manganese Steel at Cryogenic Temperatures by : JW. Morris
Download or read book Fatigue Crack Growth Behavior in a Nitrogen-Strengthened High-Manganese Steel at Cryogenic Temperatures written by JW. Morris and published by . This book was released on 1985 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fatigue crack growth rate (FCGR) of a nitrogen-strengthened high-manganese stainless steel of nominal composition 18Mn-5Ni-16Cr-0.02C-0.22N was determined in the intermediate stress-intensity factor range (20-70 MPa?m) at 77 and 4 K. Fractographic investigations were performed on the fracture surfaces. The FCGR at 4 K was very nearly the same as at 77 K and substantially below the FCGR for AISI 304LN steel. The fracture surfaces of both the high-manganese alloy and the 304LN showed a transgranular failure mode, but the detailed fractographic features varied with temperature and alloy type. The fractography was closely related to changes in the FCGR.
Download or read book Cryogenic Information Report written by and published by . This book was released on 1987 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1988-05 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Cryogenic Engineering by : Klaus D. Timmerhaus
Download or read book Advances in Cryogenic Engineering written by Klaus D. Timmerhaus and published by . This book was released on 1990 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cryogenic Mechanical Properties of 18Mn-16Cr-5Ni-0.2N Weldments by : Jin Wah Chan
Download or read book Cryogenic Mechanical Properties of 18Mn-16Cr-5Ni-0.2N Weldments written by Jin Wah Chan and published by . This book was released on 1987 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Welding Journal written by and published by . This book was released on 1990 with total page 1206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1992 with total page 1796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Government Reports Annual Index: Keyword A-L by :
Download or read book Government Reports Annual Index: Keyword A-L written by and published by . This book was released on 1987 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1987 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
