Results 231 to 240 of about 3,109,044 (287)

Effect of Austenite Stability on Pack Aluminizing of Austenitic Stainless Steels

JOM, 2014
Aluminide coatings were applied to the surfaces of several austenitic stainless steels—UNS S30300, S30400, S30900, S31000, and S31600 (Type 303, 304, 309, 310, and 316)—by the halide activated pack cementation process. The coating compositions, microstructures, and hardness were determined for the different steels coated at 850°C for 25 h.
Christopher Lopez, Armen Kvryan, Shahan Kasnakjian, Armando Coronado, Sutine Sujittosakul, Obed Villalpando, Vilupanur A. Ravi   +6 more
openaire   +1 more source

Phase stability of reduced-activation Mn-stabilized austenitic steels

Journal of Nuclear Materials, 1992
Abstract The thermal aging response of three Mn-stabilized austenitic alloys: Fe15Cr15Mn, Fe10Cr30Mn and Fe30Mn, is characterized as a function of aging time and temperature using optical metallography, analytical electron microscopy, microhardness, and magnetic susceptibility measurements.
J.I. Cole, D.S. Gelles, J.J. Hoyt
openaire   +1 more source

Microstructural stability during creep of a niobium-stabilized austenitic steel

Acta Metallurgica, 1981
Abstract Creep tests combined with transmission electron microscopy have been carried out on a niobium stabilized austenitic stainless steel which has been subject to a multi-mechanical thermal treatment (MMTT). It is found that the substructure introduced by the MMTT creates two distinct creep regimes, separated by a narrow transition temperature or
S. Nategh, P.J. Goodhew, Z.C. Szkopiak
openaire   +1 more source

Lattice expansion of carbon-stabilized expanded austenite

Scripta Materialia, 2010
The lattice parameter of expanded austenite was determined as a function of the content of interstitially dissolved carbon in homogeneous, carburized thin stainless steel foils. For the first time this expansion of the face-centered cubic lattice is determined on unstrained austenite.
Thomas S. Hummelshøj, Thomas L. Christiansen, Marcel A.J. Somers   +2 more
openaire   +1 more source

Austenite Stability Under Focused Ion Beam Milling

2020
Artifacts from FIB milling can be of great concern. Aside from commonly known defects (e.g., Ga ion implantation, re-deposition, microstructure change due to specimen temperature increase, surface amorphization, etc.), FIB milling can even result in phase transformation in some metal alloys.
Jian Li, Pei Liu
openaire   +1 more source

Stability of Reversed Austenite in 9Ni Steel

Advanced Materials Research, 2012
The samples of 9Ni steel were treated by Quenching + Tempering (QT) and Quenching + larmellarizing + Tempering (QLT). The morphology, thermal stability and mechanical stability of the reversed austenite in 9Ni steel were studied by TEM, XRD, EBSD, subzero treatment, three-point bending, uniaxial tension and uniaxial compression.
Hui Bin Wu, Lei Li, Kun Zhang, Di Tang
openaire   +1 more source

Tuning austenite stability in a medium Mn steel and relationship to structure and mechanical properties

Materials Science and Technology, 2020
We study here the underlying factors that govern the stability of austenite in a medium Mn (Fe–0.18C–11Mn–3.8Al) (wt-%) steel. In this regard, a novel heat treatment involving intercritical quenching and tempering was designed to obtain high total ...
Z. C. Li, X. J. Li, Y. Mou, R. Misra, Hua Ding, L. F. He, H. Li   +6 more
semanticscholar   +1 more source

Creep Mechanisms in Niobium-Stabilized Austenitic Steels

Metal Science Journal, 1968
Abstract The steady-state creep rates in the range 550–775° C and 1600–40,000 lb/in2 have been determined for five niobium-stabilized austenitic steels with stacking-fault energies in the range 5–35 ergs/cm2. No effect of stacking-fault energy was observed.
Russell, B., Ham, R. K., Silcock, J. M., Willoughby, G.   +3 more
openaire   +2 more sources

The nature of thermal stabilization of austenite

Metal Science and Heat Treatment, 1972
Upon thermal stabilization of austenite the yield stress is increased while the tensile strength remains unchanged. This is associated with the lowering of the MS point. Increasing the incipient shear strength decreases the MS point, in accordance with the requirement for the enhancement of the difference between the free energies of austenite and ...
B. G. Serebrennikova, M. E. Blanter
openaire   +1 more source

Mechanical stability and magnetic properties of austenite

Journal of Materials Science, 1995
Austenitic alloys have been produced by additional alloying in maraging steel grade 18 Ni at 2400 MPa. The concentration of Mo, Ni and Co was increased individually until the martensite start temperature Ms, was suppressed below ambient value. Charpy impact strength, tensile strength and magnetic properties were determined.
M. Ahmed, I. Nasim, H. Ayub, F. H. Hashmi, A. Q. Khan   +4 more
openaire   +1 more source