Czasopismo | INŻYNIERIA MATERIAŁOWA | Rocznik 2010 - zeszyt 3

Grain imaging and measurement on cross-section of turbine blade using EBSD and optical methods

nr katalogowy: 52772

Turbine blades are termed Flight Safety Parts (FSP). Imaging and measurement of grain in case of the blades is very important, because grain size, shape and distribution strongly affect the mechanical properties of the blades. The size and shape of primary grain are basic structural criteria for quality evaluation of precision cast products from nickel-based superalloys. The evaluation of fine-grained product is of great importance to metallurgists. This work which has traditionally been carried out using light microscopy can be performed by means of the electron backscattered diffraction (EBSD) technique used in the scanning electron microscope (SEM). EBSD is nowadays capable of undertaking such a study. EBSD has been known for many years (the diffraction of electrons was first observed in 1928 by Kikuchi [1]), but only widely applied in the last 10 years. EBSD is now a fast, automated technique which is utilized to determine microtexture (texture on the scale of the microstructure), microstructure quantification, grain and phase boundary characterization, phase identification and strain determination [2÷4]. EBSD is based on acquisition and analysis of Kikuchi diffraction patterns from the subsurface of a specimen in an SEM. In EBSD a stationary electron beam strikes a tilted crystalline sample and the diffracted electrons form a pattern on a fluorescent screen. The diffraction pattern can be used to measure the crystal orientation, as well as boundary misorientations, discriminate between different materials, and provide information about local crystalline perfection. When the beam is scanned in a grid across a polycrystalline sample and the crystal orientation is measured at each point, the resulting map reveals the constituent grain morphology, orientations and boundaries. Electron backscatter diffraction technique to measure grain-specific orientations and misorientations was first recorded more than 20 years ago [5] and[...]

Jeśli masz wykupiony/przyznany dostęp - zaloguj się. Skorzystaj z naszych propozycji zakupu!

Publikacja


e-Publikacja (format pdf) - nr 52772 "Grain imaging and measure..." licencja: Osobista Produkt cyfrowy	10.00 zł

Zeszyt


INŻYNIERIA MATERIAŁOWA - e-zeszyt (pdf) 2010-3 licencja: Osobista Produkt cyfrowy	65.00 zł

Prenumerata

INŻYNIERIA MATERIAŁOWA - prenumerata cyfrowa
licencja: Osobista

Produkt cyfrowy
Nowość

402.00 zł

INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna + wysyłka
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - papierowa prenumerata roczna	492.00 zł brutto 455.56 zł netto 36.44 zł VAT (stawka VAT 8%)
INŻYNIERIA MATERIAŁOWA - pakowanie i wysyłka	21.00 zł brutto 17.07 zł netto 3.93 zł VAT (stawka VAT 23%)

513.00 zł

INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS
licencja: Osobista

Szczegóły pakietu

Nazwa
INŻYNIERIA MATERIAŁOWA - PAKIET prenumerata PLUS (Prenumerata papierowa + dostęp do portalu sigma-not.pl + e-prenumerata)	600.00 zł brutto 555.56 zł netto 44.44 zł VAT (stawka VAT 8%)

600.00 zł

Zeszyt

2010-3

Twój Koszyk

Publikacja

Zeszyt

Prenumerata

Zeszyt

Czasopisma