Fe–30Mn–10.5Al–1.1C alloys with different Mo and Ni contents are prepared to investigate the phase transformation behavior mechanical properties of austenitic lightweight steels. Solution-treated samples have microstructures consisting an austenite matrix ordered κ-carbides, size κ-carbides decreases addition or Ni. In addition, body-centered cubic (BCC) phases B2 DO3 also form when 3wt%Mo 3wt%...

The influence of aluminium on the microstructure of austempered ductile cast iron (ADI) has been studied. The presence of well distributed graphite in the matrix, and a relatively high volume fraction of retained austenite are responsible for the good mechanical properties of the Aluminium alloyed austempered ductile irons including excellent wear resistance, higher resistance to thermal shock,...

Atom probe tomography has characterised the microstructural changes in T91 steel after BOR60 reactor irradiation at five temperatures between 376 °C and 524 to doses 14.6 dpa 35.1 dpa. Irradiation-induced precipitation segregation carbide/matrix interface induced by neutron been characterised. characterisation shows that Mn, Ni, Si -rich (MNS-rich) clusters form irradiated 415 °C, which is not ...

Erosive wear characteristics of (18 and 27) wt.% Cr based multicomponent (3 wt% V, Mo, W, Co) white cast iron have been systematically investigated with three conditions: as-cast (AC), as-quenched (Q), tempered (QT). The result shows that Q specimens has the better erosive resistance compared to AC due transforming austenite matrix be martensite precipitation secondary carbide. However, was sli...

We report chemical vapor deposition growth of SiGeC layers on ^100& Si substrates. At the growth temperature of 550 °C, the C concentration as high as 2% can be incorporated into SiGe ~Ge content ; 25%! to form single crystalline random alloys by using low flow of methylsilane ~0.25 sccm! as a C precursor added in a dichlorosilane and germane mixture. For intermediate methylsilane flow ~0.5 scc...

Alcohol dispersions of Ca(OH)2 nanoparticles, the so-called nanolimes, are emerging as an effective conservation material for the consolidation of stone, mortars, and plasters present in old masonry and/or mural paintings. To better understand how this treatment operates, to optimize its performance and broaden its applications, here we study the nano and microstructural characteristics, carbon...