Liquid Phase Sintering of a Boron Alloyed Austenitic Stainless Steel


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It is well known that PM stainless steels have lower corrosion resistance than the corresponding wrought steels, since they are affected by the presence of the open porosity. A way to obtain a surface densification is the addition of a small quantity of boron (from 0,3 to 0,5%wt.) to the stainless steel. The presence of boron produces a liquid phase phenomenon that results in a final microstructure consisting of a boron-rich phase network surrounding the stainless steels grains. Close to the surface, a boron-free layer was observed in which pores are very few, closed and round. This leads to an improvement in the steel corrosion resistance.



Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim




A. Molinari et al., "Liquid Phase Sintering of a Boron Alloyed Austenitic Stainless Steel", Materials Science Forum, Vols. 534-536, pp. 553-556, 2007

Online since:

January 2007