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Author:

Zhang, JM (Zhang, JM.) | Zhang, Y (Zhang, Y.) | Xu, KW (Xu, KW.)

Indexed by:

SCIE Scopus EI CSCD

Abstract:

Most thin films have different thermal expansion coefficients front their substrates, thus thermal stresses will be introduced into the films when the temperature is changed during annealing and service, Calculations of these stresses for grains in various crystallographic orientations have been made for seven BCC transition metals Cr, Fe, Mo, Nb, Ta, V and W. Neglecting W, which is isotropic and the stresses are equiaxial and without grain orientation (hkl) dependence, the BCC metals may be grouped into two classes. In the first class (Cr, Mo, Nb and V), the (100)-oriented grains have the largest stresses, while the stresses sigma(1) and sigma(2) in other (hkl)-oriented grains decrease linearly with the. increase of the angle between (hkl) and (100), and with sigma(1) < sigma(2) except in (100)- and (111)-oriented grains, In the second class (Fe and Ta), on the contrary, the (100)-oriented grains have the lowest stresses, and the stresses sigma(1) and sigma(2) in other (hkl)-oriented grains increase linearly with the increase of the angle between (hkl) and (100), and with sigma(1) > sigma(2) except in (100)- and (111)-oriented grains.

Keyword:

BCC metals calculation grain orientations stresses

Author Community:

  • [ 1 ] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China
  • [ 2 ] Xian Jiaotong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

Reprint Author's Address:

  • Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China.

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Source :

CHINESE PHYSICS

ISSN: 1009-1963

Year: 2005

Issue: 9

Volume: 14

Page: 1862-1865

1 . 2 5 6

JCR@2005

1 . 3 4 3

JCR@2009

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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