Fe-Cr ALLOY AND METHOD OF MANUFACTURING THE SAME
To provide an Fe-Cr alloy capable of exhibiting superior corrosion resistance, and a method of manufacturing the same.SOLUTION: There is provided an Fe-Cr allow which contains 5.00-30.00 mass% of Cr and has an oxide film on a surface, wherein the oxide film has a thickness d of 2.3-7.0 nm, a frictio...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English Japanese |
Published |
17.10.2019
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | To provide an Fe-Cr alloy capable of exhibiting superior corrosion resistance, and a method of manufacturing the same.SOLUTION: There is provided an Fe-Cr allow which contains 5.00-30.00 mass% of Cr and has an oxide film on a surface, wherein the oxide film has a thickness d of 2.3-7.0 nm, a friction fof Fe oxide and Fe hydroxide to a total amount (atom%) of oxide and hydroxide in the film is 0.70 or larger when the oxide film is subjected to X-ray photoelectron spectroscopic analysis at a taking-out angle where an Fe2pphotoelectron information depth is 7 nm or larger, and the friction fAof Fe oxide and Fe hydroxide to the total amount (atom%) of the oxide and hydroxide in the film is 0.05-0.15 when the oxide film is subjected to X-ray photoelectron spectroscopic analysis at a taking-out angle where an Fe2pphotoelectron information depth from a film outermost surface is a t/2 depth or less.SELECTED DRAWING: Figure 1
【課題】優れた耐食性を発揮できるFe−Cr合金およびその製造方法を提供する。【解決手段】Crを5.00〜30.00質量%含有し、表面に酸化皮膜を備えるFe−Cr合金であって、前記酸化皮膜の厚みdが2.3〜7.0nmであり、前記酸化皮膜において、Fe2p3/2光電子情報深さが7nm以上となる取り出し角度でX線光電子分光分析した場合の皮膜中の酸化物および水酸化物の全量(原子%)に対するFe酸化物およびFe水酸化物の分率fAFeが0.70以上であり、Fe2p3/2光電子情報深さが皮膜最表面からt/2深さ位置以下となる取り出し角度でX線光電子分光分析した場合の皮膜中の酸化物および水酸化物の全量(原子%)に対するCr酸化物およびCr水酸化物の分率fsCrが0.05〜0.15である。【選択図】図1 |
---|---|
Bibliography: | Application Number: JP20180069913 |