Comparative Study of Conventionally Sintered Co-Ni-Al Alloy With Spark Plasma Sintered Alloy

被引：5

作者：

Arputhavalli, G. Johnsy ^{[1
,2
]}

Agilan, S. ^{[2
]}

Dinesh, M. ^{[3
]}

Vijay, S. J. ^{[4
]}

Johnson, Roy ^{[5
]}

机构：

[1] Karunya Univ, Dept Phys, Coimbatore, Tamil Nadu, India

[2] Coimbatore Inst Technol, Dept Phys, Coimbatore, Tamil Nadu, India

[3] Karunya Univ, Dept Nanosci & Technol, Coimbatore, Tamil Nadu, India

[4] Karunya Univ, Dept Mech Engn, Coimbatore, Tamil Nadu, India

[5] ARCI, Ctr Ceram Proc, Hyderabad, India

来源：

SCIENCE OF SINTERING | 2018年 / 50卷 / 03期

关键词：

Ferromagnetic shape memory alloy; beta plus gamma martensite phase; High ductility; Crystalline structure; Spark plasma sintering; SHAPE-MEMORY ALLOYS; TRANSFORMATION; STRESS; SINGLE; GA;

D O I：

10.2298/SOS1803337J

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Co-Ni-Al alloy samples were prepared by compacting the powdered alloy at various pressures in proper stoichiometric ratio and the high density compacted alloy was sintered at 673 K The magnetic, mechanical properties, microstructure and phase analysis were studied and compared with that of spark plasma sintered (SPS) alloy. The sintered alloy exhibit martensitic twin variants with beta phase structure. Along with the diffused particle, few agglomerated clusters were observed on the topographic images. The magnetic and the mechanical studies of the test specimens were investigated using the vibrating sample magnetometer, pin on disk tribometer and universal testing machine respectively. The coercivity value and the ductility of the SPS alloy are higher than the same of the as-sintered alloy.

引用

页码：337 / 345

页数：9

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