Chemical and Histological Responses of Bean Plants Grown at Different Levels of Nutrition to Indoleacetic Acid

1940 ◽  
Vol 102 (1) ◽  
pp. 206-216 ◽  
Author(s):  
Ora Smith ◽  
L. B. Nash ◽  
G. E. Davis
1937 ◽  
Vol 99 (1) ◽  
pp. 171-183 ◽  
Author(s):  
John W. Mitchell ◽  
William E. Martin

1936 ◽  
Vol 98 (2) ◽  
pp. 370-420 ◽  
Author(s):  
E. J. Kraus ◽  
Nellie A. Brown ◽  
K. C. Hamner

1938 ◽  
Vol 99 (3) ◽  
pp. 569-583 ◽  
Author(s):  
John W. Mitchell ◽  
Charles L. Hamner

Author(s):  
J. E. Doherty ◽  
A. F. Giamei ◽  
B. H. Kear ◽  
C. W. Steinke

Recently we have been investigating a class of nickel-base superalloys which possess substantial room temperature ductility. This improvement in ductility is directly related to improvements in grain boundary strength due to increased boundary cohesion through control of detrimental impurities and improved boundary shear strength by controlled grain boundary micros true tures.For these investigations an experimental nickel-base superalloy was doped with different levels of sulphur impurity. The micros tructure after a heat treatment of 1360°C for 2 hr, 1200°C for 16 hr consists of coherent precipitates of γ’ Ni3(Al,X) in a nickel solid solution matrix.


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