Influence of High-energy Ball Milling on the Solid-Phase Sintering Kinetics of Ultrafine-Grained Heavy Tungsten Alloy

被引:13
作者
Chuvil'deev, V. N. [1 ]
Nokhrin, A. V. [1 ]
Boldin, M. S. [1 ]
Sakharov, N. V. [1 ]
Baranov, G. V. [2 ]
Belov, V. Yu. [2 ]
Popov, A. A. [1 ]
Lantsev, E. A. [1 ]
Smirnova, E. S. [1 ]
机构
[1] Lobachevsky Nizhny Novgorod State Univ, Pr Gagarina 23, Nizhnii Novgorod 603950, Russia
[2] All Russia Res Inst Expt Phys, Russian Fed Nucl Ctr, Sarov 607188, Nizhny Novgorod, Russia
关键词
DENSIFICATION BEHAVIOR;
D O I
10.1134/S1028335817090075
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The mechanisms for the sintering of ultrafine-grained 95%W-3.5%Ni-1.5%Fe heavy tungsten alloy powders have been investigated. It has been established that a decrease in the activation energy of grain boundary diffusion and the formation of a nonequilibrium solid solution of nickel and iron in the surface layer of tungsten particles upon high-energy ball milling are responsible for the decrease in optimal sintering temperature.
引用
收藏
页码:420 / 424
页数:5
相关论文
共 15 条
[1]  
[Anonymous], 1987, DIFFUSION METALS ALL
[2]  
Ashby M.F., 1982, DEFORMATION MECH MAP
[3]   Application of work-of-sintering concepts in powder metals [J].
Blaine, Deborah C. ;
Park, Seong Jin ;
Suri, Pavan ;
German, Randall M. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (09) :2827-2835
[4]   Structure and properties of advanced materials obtained by Spark Plasma Sintering [J].
Chuvildeev, V. N. ;
Panov, D. V. ;
Boldin, M. S. ;
Nokhrin, A. V. ;
Blagoveshchensky, Yu. V. ;
Sakharov, N. V. ;
Shotin, S. V. ;
Kotkov, D. N. .
ACTA ASTRONAUTICA, 2015, 109 :172-176
[5]  
Chuvildeev V. N, 2004, Nonequilibrium Grain Boundaries in Metals. Theory and Applications
[6]  
Chuvildeev V. N., 2015, ROS NANOTEKHNOLOGII, V10, P83
[7]  
Chuvildeev V. N., 2013, ROS NANOTEKHNOL, V8, P94
[8]  
CHUVILDEEV VN, 2010, DOKL AKAD NAUK+, V430, P479
[9]  
GREEN EC, 1954, P S POWD MET IR STEE, P253
[10]   The effect of trace nickel additive and ball milling treatment on the near-full densification behavior of ultrafine tungsten powder [J].
Han, Yong ;
Fan, Jinglian ;
Liu, Tao ;
Cheng, Huichao ;
Tian, Jiamin .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2012, 34 :18-26