[PDF] Top 20 An investigation of phase transformation and crystallinity in laser surface modified H13 steel

... the modified samples conducted between 30 to 70 ◦ Bragg’s angle was sufficient to investigate the phase crystallinity and broadening effect of the (110) α -Fe ...-Fe phase expresses super ... See full document

... in laser surface melting are both significant to determine the mechanical properties of the modified ...Each laser processing applies different rates. Despite the fact that laser ... See full document

... stainless steel does not go through any phase transformation, hard phases such as martensite are not expected to form in their structures; therefore, their hardness values happen to be close to each ... See full document

... of H13 tool steel that leads to transformation of the microstructure after forging Inconel 718 at high temperature and load was ...this investigation nonlinear continuum mechanics 3D FE ... See full document

... two-dimensional phase profile of the optical fi eld, we retrieve the phase pro fi le with an iterative Gerchberg − Saxton-based algorithm; 1 see ...eld phase exhibits a π -phase jump in the dark ... See full document

... AISI H13 tool steel laser melting for enhanced hardness properties with low surface roughness and thick modified layer range from 100 to 300 μm using Nd:YAG laser ... See full document

... of surface area of prior austenite grain boundaries and deformation bands on austenite/ferrite phase transformation of high strength low alloy (HSLA) steel during hot working were investigated ... See full document

... a surface and it influences the functional performance of a work piece ...part surface quality in particular the surface integrity and increasing product life cycle are important aspects for these ... See full document

... to surface hardening of steels by alloying with the use of laser ...local laser alloying followed by metallization in atmosphere of am- ...that laser alloying in continuous radiation forms a ... See full document

... Experiments are performed on ELEKTRA PS 35 die sinking EDM machine. The working tank of the machine is very large having dimensions of 850mm long 550mm wide and 300mm high. Therefore in order to prevent the mixing of ... See full document

... Laser Beam Machining is a non-traditional machining process where the way it removes material is by melting or known as thermally modifies a material by focusing a coherent beam of monochromatic light on the ... See full document

... there are no Cr-rich primary carbides in the as-cast ingot. Af- ter annealing, a large amount of secondary carbides precipi- tate in the interdendritic space and the white net-shaped car- bide segregation area is ... See full document

... The observed softening of the two grades of steel between Ms and Ac1 correlates well with a tempering of the martensite phase. During conventional tempering treatment at a relatively high temperature, the ... See full document

... die steel which is widely applied in forging mold, casting mold and hot extrusion mold ...importing H13 steel, there are still many deficiencies in domestic H13 steel: such as serious ... See full document

... cases laser head is in moving condition. For laser cutting on the cylindrical surface the steady position of head is achieved by overlapping the numbers of points on the one plane using interfacing ... See full document

... of laser shock peening (LSP) on surface integrity characteristics of X2NiCoMo18-9-5 maraging ...maraging steel specimens, in both quenched and aged condition, were treated with LSP by varying the ... See full document

... be used to give high conductivity at te l"nperatures as lo w as ZOOOQK. A large number of factors, both at the electrode surface and in the bulk of the gas , int[r] ... See full document

... It could be seen that as carbonization temperatures increase, the surface of the powder gets finer, clearer and an obvious optical clarity with the presence of tiny-like shinning particles could be observed. ... See full document

... concentration. H13 tool steel material is prepared for dipping ...form H13 steel into solid cylinder pin with diameter 113 mm and length 40 ...the H13 steel sample that has been ... See full document

... welding, laser welding and electron beam welding are used, while overlap welding has only recently been applied as a method to repair products such as gas turbine ...materials surface, as a modification ... See full document