INVESTIGATION OF THE DISTRIBUTION AND THE STATE OF SMALL AMOUNT OF RARE EARTH ELEMENTS IN PURE IRON BY THE METHOD OF INTERNAL FRICTION

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-463-C5-468
Author(s):  
Li Wern-bin ◽  
Liu Zheng-qun ◽  
Yang Quo-ping ◽  
Li Cheng-hsiu ◽  
Zhang Bin
Keyword(s):  
Rare Earth ◽  
Internal Friction ◽  
Rare Earth Elements ◽  
Pure Iron ◽  
The State

scholarly journals EFFECT OF RARE EARTH ELEMENTS ON THE INTERNAL FRICTION OF IRON

1974 ◽  
Vol 23 (4) ◽  
pp. 68
Author(s):  
YOU MIAO ◽  
YANG JI-XIAN ◽  
CHEN DE-YUAN
Keyword(s):  
Rare Earth ◽  
Internal Friction ◽  
Rare Earth Elements

Effects of Rare Earth on the Impact Toughness of High-Carbon Steel

2011 ◽  
Vol 284-286 ◽  
pp. 1223-1227
Author(s):  
Cheng Jun Liu ◽  
Hong Liang Liu ◽  
Chun Long Li ◽  
Mao Fa Jiang
Keyword(s):  
Rare Earth ◽  
Carbon Steel ◽  
Impact Toughness ◽  
Internal Friction ◽  
High Carbon Steel ◽  
The State ◽  
Sulfide Inclusion ◽  
High Carbon ◽  
Friction Curve ◽  
The Impact

The effects and mechanism of cerium, lanthanum and cerium-lanthanum alloys on microstructure and the impact toughness of high-carbon steel were studied in the present work. For high-carbon steel, the state and the content of RE were measured, and the effects and the mechanism of RE on sulfide inclusions, microstructure and the impact toughness of steel were determined. With increasing the RE addition, the sulfide inclusion can be changed from strip-like, spindle, ellipsoidal and spheric in shape. Strip-like sulfide disappears in high-carbon steel with the RE addition being 0.05%. A small quantity of RE can fine the austenitic grain, decrease the height of the SKK peak of the internal friction curve, and improve the impact toughness of high-carbon steel evidently. And the effects of lanthanum on fining the austenitic grain and improving the impact toughness is the largest, next to that of cerium-lanthanum alloys, and that of cerium is the least, which can be verified by the internal friction experiments.

PMR investigation of the state of water of hydration in ethylenediaminetetraacetates of rare-earth elements

1976 ◽  
Vol 25 (4) ◽  
pp. 708-712
Author(s):  
K. I. Popov ◽  
L. I. Martynenko ◽  
V. F. Chuvaev ◽  
N. I. Pechurova ◽  
V. I. Spitsyn
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The State ◽  
State Of Water ◽  
Water Of Hydration
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