X-95 low-alloy steel pipes for casing bowls can be manufactured using the process of hot rolling→hot sizing→direct quenching→rapid fempering and their comprehensive mechanical properties can fully meet requirements with the impact toughness 30—45J higher than that required.
After the selection of 10CrMoAl low alloy for the tubes in sea water corrosive environment and selection of 08Cr2AlMo or 09Cr2AlMo low alloy steels for the sea water and H 2S environment, good results have been obtained.
Low carbon steels Q235—A,B,C,D and low alloyed steel 16Mn used for crane metal structures fea- ture high weldability and are easy in fabrication. At the same time,however,weld quality is often neglected.
The corrosion data obtaine form the low alloy steds in three Gorges circumstance for two years have been analyzed. Results show that some low alloyed steel such as 09 CuPTiRE,JN 345,etc have remarkable corrosion resistance.
Effects of Mo composites on the corrosion behaviors of low alloy steel
By using electrochemical and weight loss methods, the effect of MoO42- on the corrosion behaviors of low alloy steel was investigated in the 55%LiBr+0.07 mol/L LiOH solution at high temperature.
The method is demonstrated by the laser atomization of a low alloy steel matrix and by the measurement of fine structure collision transfer cross sections by argon in silicon and chromium which are trace elements in iron.
The characterization of the corrosion products formed on an57Fe film onto a low alloy steel disc after 4 h and 8 h exposure to an artificially SO2-polluted atmosphere has been carried out by ICEMS/DCEMS.
The uneven amount of globular structure in a very low carbon, low alloy steel in annealed state is studied.
Temper embrittlement control technique based on the theory of NGS and deformation induced phase transformation in low-alloy steel, 12CrlMoV (which is used in steam pipeline of ships), was experimentally investigated.
Structure, properties, and fracture of a low-alloy steel in the submicrocrystalline state
Experimental data on the structure and properties of 09G2S low-alloy steel with a submicrocrystalline (SMC) structure has been obtained; the structure was formed under various regimes of severe plastic deformation by equal-channel angular pressing.
New considerable improvements in the routine vacuum spectrometric analysis of low-alloy steel samples have been achieved by using a high energy prespark discharge for special conditioning of the sample surface.
Numerous elements (as Al, Si, Mn, Cr, Ni, Co) can be determined in unalloyed and low-alloy steel with C-contents of less than 0.3%.
The corrosive effect of barnacles on low alloy steels
In situ surface analysis of annealed Fe-1.5%Mn and Fe-0.6%Mn low alloy steels
It is then possible to use advantageously low alloy steels.
Quenching refers to the process of rapidly cooling metal parts from the austenitizing or solution treating temperature, typically in the range of 845 to 870°C (1550 to 1600°F) for carbon and low alloy steels, for the purpose of forming martensite.
Modeling of the temperature field, transformation behavior, hardness and mechanical response of low alloy steels during cooling
In the investigation a high strength low alloyed steel (HSLA) with 800 MPa strength class was used, and the undermatched welded joints were made with two weld strength mismatch levels.
Inhibited buffer-complexing ferrous citrate+citric acid solutions, 2.5>amp;lt;pH>amp;lt;3.5, at 363±5K, is used to dissolve a compact magnetite layer grown on low alloyed steel in a nuclear plant generator.
The reactions between a low alloyed steel and a pure as well as a 2% silicon containing aluminium melt where studied at 780 and 792? C, respectively.
Analysis of ruptures of low alloyed steel with electron fractographs
This work presents an experimental determination of residual stresses in 35CrMo4 (Euronorm) low alloyed steel substrates with thermally sprayed coatings.