Effect of Ball Milling and Spark Plasma Sintering on Microstructure and Properties of Mn-Cu Based Damping Alloy

被引：3
作者：
Huang, Lin [1 ]
He, Xi [1 ]
Fei, Wei [1 ]
Xu, YongGang [2 ]
机构：
[1] Chengdu Univ, Sch Mech Engn, Chengdu, Sichuan, Peoples R China
[2] Southwest Jiao Tong Univ, Key Lab Adv Technol Mat, Minist Educ China, Chengdu, Sichuan, Peoples R China
来源：
MATERIALS TRANSACTIONS | 2021年 / 62卷 / 09期
关键词：
Mn-Cu alloy; damping capacity; ball milling; spark plasma sintering; MARTENSITIC-TRANSFORMATION; FCT TRANSFORMATION; BEHAVIOR; DECOMPOSITION; TEMPERATURE; CAPACITY; PHASE; DEPENDENCE; TRANSITION;
D O I：
10.2320/matertrans.MT-M2021038
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study, a Mn-Cu-based damping alloy with a nominal composition of Mn-25Cu-2Al was produced by ball milling and spark plasma sintering. The phase composition, microstructure, compactness. micro-hardness, damping capacity of these materials were systematically investigated. Experimental results show that the ball milling mixed particles are mainly composed of alpha-Mn and y-Cu. The microstructure of the alloy sintered at 730 degrees C is mainly composed of gamma-MnCu, gamma-CuMn and alpha-Mn. With the increase of sintering temperature, gamma-CuMn and a-Mn gradually disappear by the mutual diffusion of Mn and Cu elements. During 850 degrees C sintering, the alloy is mainly single gamma-MnCu solid solution. At the same time, as the sintering temperature increases, the compactness and damping capacity of the alloys increases and the micro-hardness decreases.
引用
收藏
页码：1279 / 1284
页数：6
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