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Identification of process conditions...

Guo, Shu.

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Identification of process conditions and stress evolution in thermal spray by detailed simulation.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Identification of process conditions and stress evolution in thermal spray by detailed simulation./
Author:	Guo, Shu.
Description:	69 p.
Notes:	Source: Masters Abstracts International, Volume: 49-02, page: 1351.
Contained By:	Masters Abstracts International49-02.
Subject:	Engineering, Mechanical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1482697
ISBN:	9781124289595

Identification of process conditions and stress evolution in thermal spray by detailed simulation.
Guo, Shu.

Identification of process conditions and stress evolution in thermal spray by detailed simulation. - 69 p.

Source: Masters Abstracts International, Volume: 49-02, page: 1351.

Thesis (M.S.)--State University of New York at Stony Brook, 2010.

Thermal sprayed Yttria stabilized Zirconia coatings are fabricated with melted or semi-melted particles solidifying on substrates. This process results in the unique layered, porous and cracked morphology of thermal sprayed ceramic materials. Meanwhile, the stresses within coatings evolve throughout fabrication process. During the actual experiments, the conditions, such as preheat temperature of substrate, raster speed as well as feed rate can influence the stress evolution and residue stress. To quantifying the influences of these associate process conditions, a very detail simulation method of thermal spray is employed in this paper.

ISBN: 9781124289595Subjects--Topical Terms:

783786
Engineering, Mechanical.

Identification of process conditions and stress evolution in thermal spray by detailed simulation.
LDR:02867nam 2200313 4500 001 1401546
005 20111020092030.5
008 130515s2010 ||||||||||||||||| ||eng d
020 $a 9781124289595
035 $a (UMI)AAI1482697
035 $a AAI1482697
040 $a UMI $c UMI
100 1 $a Guo, Shu. $3 1680689
245 1 0 $a Identification of process conditions and stress evolution in thermal spray by detailed simulation.
300 $a 69 p.
500 $a Source: Masters Abstracts International, Volume: 49-02, page: 1351.
500 $a Adviser: Toshio Nakamura.
502 $a Thesis (M.S.)--State University of New York at Stony Brook, 2010.
520 $a Thermal sprayed Yttria stabilized Zirconia coatings are fabricated with melted or semi-melted particles solidifying on substrates. This process results in the unique layered, porous and cracked morphology of thermal sprayed ceramic materials. Meanwhile, the stresses within coatings evolve throughout fabrication process. During the actual experiments, the conditions, such as preheat temperature of substrate, raster speed as well as feed rate can influence the stress evolution and residue stress. To quantifying the influences of these associate process conditions, a very detail simulation method of thermal spray is employed in this paper.
520 $a To exhibit the simulation, nonlinear material properties are to be identified from experiments. First, a suitable stress-strain model is introduced, following by a nonlinear bi-material beam solution. Afterward, an inverse analysis procedure is introduced to process curvature-temperature measurements to extract unknown parameters. With the material properties and input the process condition, a detail simulation is carried out corresponding to the experiments. From the simulation, the temperature at the bottom of substrate and curvature measurements through ICP can be replicated to validate the result of simulation. After the verification of the simulation, the influence of preheated temperature, raster speed and feed rate is studied separately. Moreover, experiments will be implemented to verify these conditions' influence.
520 $a The stress evolution can reveal the information of coating formation and properties. From the simulation, this becomes very easy and obvious comparing with experiments. Also, the residue stress can be obtained directly from the simulation. In the end, to validate the prediction of simulation, experiments are carried out to compare with the results obtain from simulation.
590 $a School code: 0771.
650 4 $a Engineering, Mechanical. $3 783786
690 $a 0548
710 2 $a State University of New York at Stony Brook. $b Mechanical Engineering. $3 1674203
773 0 $t Masters Abstracts International $g 49-02.
790 1 0 $a Nakamura, Toshio, $e advisor
790 1 0 $a Korach, Chad $e committee member
790 1 0 $a Sampath, Sanjay $e committee member
790 $a 0771
791 $a M.S.
792 $a 2010
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1482697