Excellent mechanical properties and giant room-temperature elastocaloric effect in spark plasma sintered Ni-Co-Mn-Ti shape memory alloy

doi:10.1016/j.physb.2024.416611

IMR OpenIR

	Excellent mechanical properties and giant room-temperature elastocaloric effect in spark plasma sintered Ni-Co-Mn-Ti shape memory alloy
	Wu, Yanze 1; Guan, Ziqi 2; Tang, Hongyuan 1; Li, Zhenzhuang 1,2; Li, Zongbin 3; Wang, Yanxu 2; Lu, Xing 1; Zuo, Liang 3
通讯作者	Guan, Ziqi(zqguan@imr.ac.cn) ; Li, Zhenzhuang(li_zhenzhuang@yeah.net) ; Li, Zongbin(lizb@atm.neu.edu.cn)
	2025
发表期刊	PHYSICA B-CONDENSED MATTER
ISSN	0921-4526
卷号	696 页码:7
摘要	All-d-metal Heusler-type Ni-Mn-Ti alloys have emerged as a research focus in the field of elastocaloric refrigeration due to their remarkable elastocaloric effect. However, the mechanical properties of these materials present a challenge for their engineering applications. In this work, Ni 37 Co 13 Mn 33.5 Ti 16.5 alloys with varying particle sizes were successfully prepared under different conditions using spark plasma sintering. The influence of particle size on the microstructure, mechanical properties and the elastocaloric effect were systematically explored. The results indicate that smaller particle sizes can significantly enhance mechanical properties during the SPS process, primarily due to grain refinement and the presence of Ti-rich second phases within the grains. Notably, compressive strength and fracture strain reached as high as 2225 MPa and 33 %, respectively, marking an increase of 145.9 % and 312.5 % over the as-cast alloy. Additionally, an unprecedently adiabatic temperature variation of 31.2 K was obtained upon loading in the sintered Ni-(Co)-Mn-Ti shape memory alloys.
关键词	Ni-Mn-Ti alloys Elastocaloric effect Spark plasma sintering Mechanical properties
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Provincial Uni-versities of Liaoning ; Natural Science Foundation of Liaoning Province ; Postdoctoral Fellowship Program of China Postdoctoral Science Foundation ; Innovation Fund of Institute of Metal Research, CAS
DOI	10.1016/j.physb.2024.416611
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52201005] ; National Natural Science Foundation of China[52401253] ; National Natural Science Foundation of China[52171005] ; National Natural Science Foundation of China[52371006] ; National Natural Science Foundation of China[52201029] ; Fundamental Research Funds for the Provincial Uni-versities of Liaoning[LJ212410150019] ; Natural Science Foundation of Liaoning Province[2024-BSBA-41] ; Postdoctoral Fellowship Program of China Postdoctoral Science Foundation[GZC20232741] ; Innovation Fund of Institute of Metal Research, CAS[2024-PY05]
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
WOS记录号	WOS:001368664800001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/181237
专题	中国科学院金属研究所
通讯作者	Guan, Ziqi; Li, Zhenzhuang; Li, Zongbin
作者单位	1.Dalian Jiaotong Univ, Sch Mat Sci & Engn, Dalian 116028, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yanze,Guan, Ziqi,Tang, Hongyuan,et al. Excellent mechanical properties and giant room-temperature elastocaloric effect in spark plasma sintered Ni-Co-Mn-Ti shape memory alloy[J]. PHYSICA B-CONDENSED MATTER,2025,696:7.
APA	Wu, Yanze.,Guan, Ziqi.,Tang, Hongyuan.,Li, Zhenzhuang.,Li, Zongbin.,...&Zuo, Liang.(2025).Excellent mechanical properties and giant room-temperature elastocaloric effect in spark plasma sintered Ni-Co-Mn-Ti shape memory alloy.PHYSICA B-CONDENSED MATTER,696,7.
MLA	Wu, Yanze,et al."Excellent mechanical properties and giant room-temperature elastocaloric effect in spark plasma sintered Ni-Co-Mn-Ti shape memory alloy".PHYSICA B-CONDENSED MATTER 696(2025):7.