The martensitic transformation in single crystals of iron-chromium-nickel alloys

Influence of deformation-induced martensite on fatigue crack propagation in 304-type steels

“…However, the curves in Fig. 9(a) are well fit by an expression of the form 8 =A(~K-C)2 (1) where A and C are constants whose values change with R (or, equivalently, with Kmax). Equation (I) implies that there is a threshold value of the cyclic stress intensity for the transformation.…”

“…The martensitic transfonnation causes a shape deformation that is evidenced by surface-relief effects [1] and a volume change that is dependent on the composition and is ... + 2% in 304-type stainless steels. [2.3] During fatigue crack growth the transfonnation is induced in the strain field ahead of the crack tip.…”

Magnetic investigation of the effect of α′-martensite on the properties of austenitic stainless steel

“…The lattice parameters of the ␥-, -and ␣ -phases are determined by X-ray diffraction techniques, a ␥ = 0.3585 ± 0.0002 nm, a ␣ = 0.2872 ± 0.0002 nm [6,7]. Therefore, the ␥ → ␣ phase transformation is accompanied by a volume expansion of 2.83%.…”

Low Temperature Sensitization on the Orthogonal Surfaces of Prior Deformed AISI 304LN and Aged at 673 K to 873 K (400 °C to 600 °C)

“…Also, the austenite and martensite have a well-defined crystallographic relationship with respect to each other. [25,26] Experimental work carried out by Goodchild et al [27] shows that e forms on the {111} planes of c grains preferably when the tensile stress is applied parallel to 110 h i; whereas no transformation occurs with the stress applied in 100 h i direction. During the rolling, texture evolution, and phase transformation both take place simultaneously.…”