共搜索到29524条信息，每页显示10条信息，共2953页。用时：0小时0分0秒639毫秒
is related to both the site preference of elements and the bonding strengths in Ni3Al. Key words: antiphase boundary energy; alloying element; Ni3Al intermetallic compound; first-principles 具有L12型晶体结构有序金属......
that excellent bonding between the coating and carbon steel substrate is ensured by the strong metallurgical interface, and the coating is uniform, continuous and almost defect-free, 3 mm......
than that on magnetite, GE has a stronger collecting action on jasper. GE cationic has more electrostatic charges of bonding atoms than twelve amine cationic, and it is easier to bond with mineral......
is well bonded with the substrate, and the coating thickness is about 20 μm. Ni-P coating is composed of Ni and P atoms, in which the bonding energy of Ni atom is 853.34 eV, while that of P atom is 133.02......
, and meet the request of not less than 0.5 L/min per person. The phenomenon of particle sintering and bonding for used adsorbent doesn’t appear, and the utilization can be increased by 34% through flip......
, which has the ultimate tensile strength (UTS), yield strength (YS) and elongation of 313 MPa, 209 MPa and 28.6%, respectively.Key words:AZ31 magnesium alloy; high strain rate triaxial-forging......
anomalous yield and intermediate-temperature brittleness (ITB) behavior. Below 650 °C, the yield strength decreases slightly but the ultimate tensile strength almost has no change. When the temperature... temperature environment, due to their excellent creep properties, fatigue strength and good corrosion resistance [1-4]. Recently, with the development of the land-base and aerospace gas turbine engines......
in the roof. The key is to form the pre-crack seam and predict the effect of the seam. The H-J-C blast model was built in the roof. Based on the theories of dynamic strength and failure criterion of dynamic... of the tensile stress reaches 20 MPa, which is much larger than 13.7 MPa of the dynamic tensile strength of rock. The minimum particle vibration velocity reaches 50 cm/s, which is greater than 30-40 cm/s......
Petroleum Corporation, Beijing 100097, China)Abstract:The uncertainties of some key influence factors on coal crushing, such as rock strength, pore pressure and magnitude and orientation of three......
compressive strength (SCI,B/SUC,B) and the ratio of axial strain at the crack initiation stress to the axial strain at the uniaxial compressive strength ( ) were studied by performing numerical......
