4.6 Article

Investigations of Microstructures and Erosion-Corrosion Performance of Cast Boron-Bearing Stainless Steel

Journal

COATINGS
Volume 11, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/coatings11121553

Keywords

boron-bearing stainless steel; microstructure; hardness; erosion-corrosion

Ask authors/readers for more resources

Research on boron-bearing stainless steel showed that it has superior erosion-corrosion resistance due to its microstructure. Additionally, heat-treated boron-bearing stainless steel has lower hardness, and erosion-corrosion weight loss is affected by impact angle and rotating speed.
The microstructures and erosion-corrosion properties of boron-bearing stainless steel were researched by an erosion-corrosion tester, energy dispersive X-ray spectrometry, scanning electron microscope and X-ray diffraction analysis. The microstructures of as-cast, boron-bearing stainless steel contain M-7(B,C)(3), M-2(B,C) borocarbides and the martensite matrix; the matrix has less chromium and more nickel than those in the M-2(B,C) and M-7(B,C)(3). The microstructures in heat-treated, boron-bearing stainless steel consist of M-7(B,C)(3), M-2(B,C) and M-23(B,C)(6) borocarbides and ferrite, and the Rockwell hardness of heat-treated, boron-bearing stainless steel is lower than that of as-cast steel. For Cr28 white cast iron and boron-bearing stainless steel, the mixing wheel with higher rotating speed leads to a higher erosion-corrosion weight loss, and as the impingement angle increases, the erosion-corrosion weight loss increases first, and then decreases. For any erosion-corrosion experiment conditions, the erosion-corrosion resistance of boron-bearing stainless steel is better than that of Cr28 white cast iron.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available