Schwefel‐Heterocyclen, XII [1] Isothialene (Cyclopenta[c] thiapyrane) aus Cyclopentadien und Thiazolen

Prediction of Decarburized Ferrite Depth of Hypoeutectoid Steel with Simultaneous Oxidation

“…The oxidation behavior of metals and alloys have been elucidated in many texts 14,[25][26][27][28][29][30] as mentioned above; however a brief summary of the kinetic equations involved and the procedure for determining oxidation kinetics used in this study are given below. The weight gain (typically normalized with surface area and given as mg/cm 2 ) as a function of time can follow a linear, parabolic, logarithmic or cubic relationship and such behavior has been compiled for various metals and alloys.…”

Step-Edge-Induced Oxide Growth During the Oxidation of Cu Surfaces

“…Such oxide formation plays an enormous role in technology, from causing serious corrosion problems, to providing protection against corrosive attack. The canonical description of oxide formation in metals involves a solid-solid transformation: during the initial stages of oxidation, the metal surface is assumed to undergo a series of structural changes starting with the initial oxygen chemisorption followed by oxygen subsurface incorporation resulting in conversion of the metal lattice into the oxide phase [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]; thereafter, at the later stages of oxidation, oxide scale growth involves incorporation of metal atoms at the metal-oxide interface and these solid-solid transformation processes require significant bulk diffusion of metal atoms to the surface or oxygen to the subsurface interface [21]. Such a mechanism has been inferred from idealized experiments that are primarily restricted to planar surfaces under ultrahigh vacuum (UHV) conditions.…”

Evaluation of Tga as a Quality Assurance Tool for Surfacemodified Zircoloy-4

“…This behavior was not observed due to the relatively short oxidation tests that were run compared to the data presented by W. Lusher (2). The 0.1 mil SM Zr-4 sample exhibits a sigmoidal oxidation curve rather than the parabolic oxidation curve that is expected for production of a compact adherent oxide layer (3,4).…”