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Showing 1 to 20 of 113 for “"Stainless steels"”.
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Impact fracture of embrittled stainless steels
Hydrogen embrittlement of austenitic stainless steels and temper embrittlement of a martensitic stainless steel have been studied by impact testing, metallography, and SEM fractography. New data for uncharged and hydrogen-charged specimens of Types 304L and 316L austenitic stainless steels show …
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Impact fracture of austenitic stainless steels
… material selection is imperative. Austenitic stainless steels may be a likely choice for hydrogen service because their behavior in high pressure hydrogen ranges from no apparent damage to relevant, but generally small ductility loss (13). Because of this Variation in behavior, a single …
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Stress corrosion cracking of austenitic stainless steels
… behavior of metastable and stable austenitic stainless steels, constant elongation rate tests (CERT) and sub-critical crack growth (SCG) tests were used to measure the susceptibility and cracking rate. The tests were performed in H$\sb2$SO$\sb4$/NaCl solutions in the pH ranges from 0 to 7 and …
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Phase transformations in welded supermartensitic stainless steels
Supermartensitic stainless steels have recently been introduced in the oil and gas industries to substitute more expensive duplex stainless steels for onshore and offshore tubing applications. Although easily joined by arc welding processes, the service life of the supermartensitic welded joint in …
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Embrittlement of Austenitic Stainless Steels by Solute Hydrogen
Mechanical properties of austenitic stainless steel were determined as a function of solute hydrogen concentration. Twenty micron thick foils of types 310s and 304 stainless steel were cathodically precharged to saturation and tested in tension at room temperature. X-ray diffraction experiments …
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Corrosion fatigue behavior of austenitic-ferritic stainless steels.
Thesis. 1977. Ph.D.--Massachusetts Institute of Technology. Dept. of Materials Science and Engineering.
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Control of texture and formability in ferritic stainless steels.
… Ti-stabilised 12 Cr (409) and 17 Cr (430 Ti) steels have been studied. The annealing textures have beencorrelated with tensile strain ratio measurements and from this correlation it has been possible to select combinations of cold rolling reduction and annealing treatments for texture control …
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Internal hydrogen-induced subcritical crack growth in stainless steels
Three types of stainless steel--austenitic, ferritic and duplex--were cathodically precharged with hydrogen at high temperature in a molten salt electrolyte. Constant strain rate tests and sustained load tests were performed in air at temperatures from 0 to 50$\sp\circ$C with hydrogen contents up …
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Investigating the nature of passive films on austenitic stainless steels
… formation and breakdown of the passive film on stainless steels are mainly controlled by ionic and electronic transport processes. Both these processes are in part controlled by the electronic properties of the oxide film. Consequently it is vital to gain a detailed perception of the electronic …
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Processing-microstructure-property relationships in additively manufactured duplex stainless steels
… more popular in AM applications are duplex stainless steels (DSS), known for their excellent mechanical and corrosion properties. These alloys are commonly used in the oil and gas, chemical, and marine industries. However, since AM can drastically change the properties and microstructure of …
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The austenite-martensite phase relationships in precipitation hardening stainless steels
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1958.
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Corrosion fatigue initiation in stainless steels : The scanning reference electrode technique.
… by corrosion fatigue in austenitic and duplex stainless steel were studied using a novel scanning reference electrode technique (SRET). Emphasis was made on the role played by corrosion pits, which can act as stress concentrators and promote fatigue crack nucleation. SRET measurements conducted …
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The cold rolling and primary recrystallisation textures of austenitic stainless steels.
… alloys, with later reference to recent work on stainless steels. Using laboratory and commercial alloys a study has been made of factors influencing the cold rolling and primary recrystallisation textures of stainless steels. Preferred orientations have been assessed by X-ray determination of …
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Hydrogen embrittlement testing of austenitic stainless steels SUS 316 and 316L
… hydrogen in the automotive industry, austenitic stainless steels SUS 316 and 316L were used to validate the test programs. Tests were first performed in 25 MPa helium and hydrogen at room temperature and at -40°C. Tests in a 25 MPa hydrogen atmosphere caused embrittlement in SUS 316, but not in …
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The environmental effect on corrosion fatigue behavior of austenitic stainless steels
… power plant materials, especially austenitic stainless steels. Both enhancement and retardation of crack growth have been observed in laboratory tests. This thesis work performs high temperature autoclave testing, post-test characterization and mechanistic modeling to understand the corrosion …
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Characterization of a tie-line series of austenitic-ferritic stainless steels.
Thesis. 1978. M.S.--Massachusetts Institute of Technology. Dept. of Materials Science and Engineering.
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Experimental determination of radiation induced segregation susceptibility in austenitic stainless steels
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1994.
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