Effects of extremes of hardness and mean stress on fatigue of AISI 4340 steel in bending and torsion: Findley, W.N. J. Eng. Mater. Technol. (Trans. ASME) Apr. 1989 111, (2), 119–122doi:10.1016/0142-1123(89)90238-7ELSEVIER
HPT caused severe plastic deformations that generate numerous dislocations and lattice strains, and this stimulated the formation of aluminum carbides (Al4C3) and reduced the hardness during heat treatment. In contrast, the HRed specimens experienced dynamic recovery, and their initial dislocation ...
6.VARIATIONS OF CURVATURE,TORSION AND STRESS OF DOUBLE HELIX WIRE IN 6×7+IWS WIRE ROPE6×7+IWS双螺旋钢丝曲率和挠率及其应力变化特性 7.The Deflectional Curvature of the Non - Straight Gradual - Approach Curve and the First and Second Foundation Measure in the Surface;曲面上非直线的渐近曲线的...
Metal Fatigue, Prestrain, Fatigue Limit, Hardness, Residual Stress, Precrack, Carbon SteelThe effect of the type of prestrain (tensile or torsional pre... M Kang,Y Aono,H Noguchi - 《Journal of Solid Mechanics & Materials Engineering》 被引量: 2发表: 2008年 Experimental study on surface ...
graphene particles, stress transfer to the reinforcements and the inherent properties of graphene can also enhance the mechanical properties of the graphene-containing MMCs produced by HPT. On the other hand, HPT negatively affects the electrical conductivity of the metal matrices by increasing the ...
Relatively simple fatigue tests have been performed on two common engineering materials, cast ductile iron and low-carbon steel, using two stress states, c... Marquis,Socie - 《Fatigue & Fracture of Engineering Materials & Structures》 被引量: 85发表: 2000年 Comparative study of the nonlinear ...
The decrease in hardness is attributed to free volume generation, i.e., the softening induced by plastic strain. The hydrostatic stress and shear strain have inverse effects on the microstructure and mechanical properties. The effect of plastic strain on the hardness and the DSC results is more ...
Recently, novel Ti-based alloys have been developed to match the mechanical properties of human bone (Young’s modulus and hardness, in particular) in order to avoid stress shielding effects and the failure of implants [2]. For this purpose, the binary system alloys have exhibited a good comb...
anvil wall inclination angle and anvils alignment, on the stress characteristics during HPT. The systematic analysis revealed that the free flow gap,jof 1 mm, leads to a heterogeneous pressure distribution across the sample radius. However, the pressure homogeneity depends slightly on the wall inclin...
Gold (Au), silver (Ag) and copper (Cu) were severely deformed through the process of high pressure torsion (HPT). The grain sizes were reduced to the submicrometer range and the hardness increased significantly by the HPT process. However, after holding at room temperature, Au and Ag exhibit...