FERRITE-BAINITE TWO-PHASE STEELPURPOSE: To produce a steel for structures excellent in fatigue crack propagating resistance and used for vessels, marine structures, bridges, buildings, tanks, automobiles or the like under repeated loads.YODA NOBORU...
Weld metal is composed mainly of acicular ferrite , granular bainite and a small amount of martensite. 焊缝金属主要有针状铁素体+粒状贝氏体+少量马氏体组成。 www.fabiao.net 3. To sum up, the upper bainite characterize pearlite decomposition, while the lower bainite has the impression of martens...
贝氏体中的残余奥氏体分解和转变的行为与马氏体中的不同. 互联网 The microstructure in the sub - temperature normalized ( SN ) steel is mainly ferrite andbainitecolonies. 亚温正火的组织主要是铁素体与贝氏体晶团. 互联网 展开全部
英文: It was pointed out that with different chemical composition and different iso-quenching temperature, the structure morphologies of the bainite transition products are different from each other, the ferrite is the indispensable constituent, and whether the ...
Similarly, ferrite was a term originally used for iron-carbon alloys, in which the iron was in the body-centred cubic (alpha- or delta-iron) morphology, but is now used for the constituent in iron alloys, which contains iron in the alpha- or delta-iron fo...
It is argued that there are useful mechanistic distinctions to be made between the coherent growth of ferrite initially supersaturated with carbon (bainite), coherent growth of Widmanstätten ferrite under paraequilibrium conditions, and incoherent growth of ferrite under local equilibrium or ...
elucidationofthemainpointofviewoftheauthorsLiuet.al,i.e.thebainiteferritenucleatesatcarbondepletedzoneinaustenitewith nondiffusion,non—shearmechanismandtherequiredconditionfortheformationofcarbon—depletedzone.Thepresentauthoremphasizes thatitisimpossibletodevelopsolute.. depletedzoneduringtheformationofbainiteinsteels...
The grain boundary of austenite couldn't be revealed clearly Except the difference of the transformation temperature, the granular structure possessed Widmanstatten ferrite is similar to the granular bainite in characteristics. Finally, the models of the growth of granular bainite and granular structure...
The present status of the three principal definitions of bainite currently in use is reviewed. On the surface relief definition, bainite consists of precipitate plates, producing an invariant plane strain (IPS) surface relief effect, which form by shear,i.e., martensitically, at temperatures usuall...
bainitic ferrite and retained austenite, the complexity of the different microstructural characteristics, the natural consequence of its unique transformation mechanisms, might not provide with one unique answer, but a set of several parameters interdependent among them. This paper will deal with some of...