Martensitic Stainless Steels
Pp. 41-51 (11)
Joseph Ki Leuk Lai, Kin Ho Lo and Chan Hung Shek
This chapter is on martensitic stainless steels. A brief introduction to the compositions and
uses of the various grades of steels in the ferritic class is given first. The purposes of and the changes in
properties associated with typical heat treatments (austenisation and tempering), together with their
underlying mechanisms, are then introduced. Recent results on the effects of heat-treatment parameters
(temperature, cooling rate, etc.) are presented. A recently-developed tempering map for martensitic
stainless steel and a new constitution diagram for ferritic-martensitic weld metals are also presented.
Martensitic stainless steel, austenitisation, austenitising temperature, tempering, tempering
map, martensitic transformation, retained austenite, constitution diagram, strengthening, carbide.
City University of Hong Kong.