Oxidation Of A Type 316l Stainless Steel Stirling Converter Regenerator Nasa Tm 2003 212118 National Aeronautics And Space Administra
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Corrosion Of Metals In Deionized Water At 38 C 100 F
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Author : Barbara Alice Johnson
language : en
Publisher:
Release Date : 1969
Corrosion Of Metals In Deionized Water At 38 C 100 F written by Barbara Alice Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Evaluation Of The Stress Corrosion Cracking Resistance Of Several High Strength Low Alloy Steels
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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-26
Evaluation Of The Stress Corrosion Cracking Resistance Of Several High Strength Low Alloy Steels written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-26 with categories.
The stress corrosion cracking resistance was studied for high strength alloy steels 4130, 4340, for H-11 at selected strength levels, and for D6AC and HY140 at a single strength. Round tensile and C-ring type specimens were stressed up to 100 percent of their yield strengths and exposed to alternate immersion in salt water, salt spray, the atmosphere at Marshall Space Flight Center, and the seacoast at Kennedy Space Center. Under the test conditions, 4130 and 4340 steels heat treated to a tensile strength of 1240 MPa (180 ksi), H-11 and D6AC heat treated to a tensile strength of 1450 MPa (210 ksi), and HY140 (1020 MPa, 148 ksi) are resistant to stress corrosion cracking because failures were not encountered at stress levels up to 75 percent of their yield strengths. A maximum exposure period of one month for alternate immersion in salt water or salt spray and three months for seacoast is indicated for alloy steel to avoid false indications of stress corrosion cracking because of failure resulting from severe pitting. Humphries, T. S. and Nelson, E. E. Marshall Space Flight Center NASA-TM-78276