NIOSHTIC-2 Publications Search

Effect of Alloying Elements on Oxidation of Low-chromium Alloys.

Authors
Oh-JM
Source
MISSING :12 pages
Link
NIOSHTIC No.
10005451
Abstract
The Bureau of Mines is conducting research to determine the high- temperature oxidation resistance of substitute stainless steels (ss) containing two less strategic elements, al and si, instead of cr. Chromium is considered to be a critical and strategic metal. Although the cr content was reduced to 8 wt pct, the alloys showed better oxidation resistance than did 304 ss containing 18 wt pct cr. Specifically, the alloys that contained fe-8cr-16ni with combinations of al and si showed excellent oxidation resistance even at temperatures up to 1,000 deg. C. In this study, the effects of the alloying elements on oxidation kinetics and morphology of oxides were investigated using a cahn rg electrobalance, scanning electron microscopy, an energy-dispersive x-ray analyzer, x-ray diffraction, and an electron microprobe. Aluminum and silicon additions in combination were more effective in providing oxidation resistance than either element was alone.
Publication Date
19860101
Document Type
IH; Report of Investigations
Fiscal Year
1986
Identifying No.
RI 9047
Source Name
MISSING
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division