Monte Carlo sampling for microsegregation measurements in cast structures

被引：17

作者：

Yang, WH ^{[1
]}

Chen, W

Chang, KM

Mannan, S

DeBarbadillo, J

机构：

[1] W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA

[2] W Virginia Univ, Dept Mech & Aerosp Engn, Schenectady, NY 12308 USA

[3] GE, Power Syst, Schenectady, NY 12308 USA

[4] Special Met Corp, Special Projects, Huntington, WV 25705 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2000年 / 31卷 / 10期

关键词：

D O I：

10.1007/s11661-000-0201-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The statistical random meshing method used for the measurement of microsegregation in a cast microstructure was simulated using the Monte Carlo method. The standard deviation of measurements, the effect of sample size, the electron beam diameter, and the scattering on obtained solute partition coefficients were analyzed and evaluated. It is found that a sample size between 100 to 200 points can give satisfactory measurement. A method to use the measured segregation profiles in solid is suggested, Partition coefficients obtained by the statistical random sampling method are found to represent real segregation characteristics in the alloys.

引用

页码：2569 / 2574

页数：6

共 13 条

[1]

Auburtin P, 1996, SUPERALLOYS 1996, P443

[2]

BRODY HD, 1966, T METALL SOC AIME, V236, P615

[3]

FLEMINGS MC, 1972, SOLIDIFICATION PROCE, P31

[4]

Goldstein J. I., 1981, SCANNING ELECT MICRO, P53

[5] A STATISTICALLY SIGNIFICANT EXPERIMENTAL-TECHNIQUE FOR INVESTIGATING MICROSEGREGATION IN CAST ALLOYS [J].

GUNGOR, MN .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (11) :2529-2533

[6]

*MICR CORP, 1997, MICR OFF 97 PROF ED

[7]

Mooney Christopher Z., 1997, Monte Carlo simulation

[8]

PFANN WG, 1952, T AM I MIN MET ENG, V194, P747

[9]

Scheil E, 1942, Zeitschrift fur metallkunde, V34, P70, DOI DOI 10.1515/IJMR-1942-340303

[10] EFFECT OF FLUID-FLOW AND HAFNIUM CONTENT ON MACROSEGREGATION IN THE DIRECTIONAL SOLIDIFICATION OF NICKEL-BASE SUPERALLOYS [J].

SELLAMUTHU, R ;

BRODY, HD ;

GIAMEI, AF .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1986, 17 (02) :347-356

← 1 2 →