Metal is particularly well-suited for structural and load-bearing uses due to its strength, ductility, malleability, and reliable performance across temperatures. Today’s scientists are striving to expand capabilities even further by developing metals that are stro...
Provides a suitable connection of high strength, low alloy steel weld metal. 所述焊缝金属的显微组织中针状铁素体(16')分散在硬组元(11')如板条马氏体中,其屈服强度至少约690MPa(100ksi),由夏氏V形缺口能量与温度关系曲线测得的DBTT低于约-50℃(-58 ). The weld metal microstructure of acicular ...
Liu et al. [94] carried out sliding wear experiments on the Co06 laser cladding layer on a 30CrNiMo steel substrate at room temperature and high temperature, respectively. The study found that it is mainly adhesive wear at high temperature, and it has good abrasion resistance and high ...
where M represents a second non-precious metal andxranges from 0 to 1, were synthesized using a sol–gel method. Nickel was chosen as the host metal owing to its current efficiency as a non-precious metal catalyst for high-temperature CO2electroreduction4,8, ...
The grinding medium is high-carbon or cast alloy steel balls. The particle size of the feed usually does not exceed 20-25 mm. The grinding is caused by balls being moved up the side of the mill in such a way that they release and fall to the point where they impact the ore ...
No nickel is found on the steel disc surface and the thickness of tribofilm is only a few nanometers thick because the metal iron is easily detected underneath the oxide contribution (Fig. 5b). It is clear that some oxide/hydroxide species are present in the tribofilm. The peaks in the ...
Mridha and Khan78 indicated that austenitizing temperature does not affect the surface hardness nor the case depth of 3% Cr steel. Tempering temperature, however, has a strong influence on the evolution of hardness in the surface vicinity. Increasing the tempering temperature results in the coarseni...
A titanium alloy including by mass %, a platinum group metal: 0.01 to 0.15% and a rare earth metal: 0.001 to 0.10%, with the balance being Ti and impurities. The titanium alloy pref
as a function of the change of mass versus time for examples C, E and G as well as comparative example 1. DESCRIPTION OF THE INVENTION These objects are met by means of a ferritic stainless steel having the following composition (in % by weight): less than 1% of Ni, 15-25% of ...
Graphical representation of the results of the tension tests at room temperature (mean values) versus condition. Molybdenum has a positive effect on the offset yield strength and the tensile strength. The positive influence of molybdenum is illustrated in FIGS. 3 and 4. Graphical representation of...