INFLUENCES OF HEAT TREATMENT ON TRANSFORMATION BEHAVIORS OF NEAR-EQUIATOMIC POROUS NITI SHAPE MEMORY ALLOY

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	INFLUENCES OF HEAT TREATMENT ON TRANSFORMATION BEHAVIORS OF NEAR-EQUIATOMIC POROUS NITI SHAPE MEMORY ALLOY
	H. C. Jiang; Y. Chen; S. W. Liu; L. J. Rong
	2010
发表期刊	International Journal of Modern Physics B
ISSN	0217-9792
卷号	24 期号:15-16 页码:2410-2416
摘要	The pore characteristics and pore size distribution of porous near-equiatomic NiTi shape memory alloy fabricated by self-propagating high-temperature synthesis (SHS) are described in detail. The effects of different heat treatments on the transformation of porous NiTi alloy were investigated by differential scanning calorimetry (DSC), x-ray diffraction (XRD), and scanning electron microscopy (SEM). The results indicate that heat treatment had strong influences on the transformation temperatures and latent heats of transformation. When the porous alloy was annealed at 648K and 748K for 3.6ks, two steps transformation including R transformation occurred during cooling and heating and the R transformation temperatures are lower than B2 <-> B19' transformation temperatures. However, no transformation was detected within the experimental temperature range if the porous alloy was solution treated at 1133K for 2.4ks. This novel phenomenon was the results of extensive Ti2Ni intermetallic compound precipitation. The transformation temperatures of porous NiTi alloy after annealing at 1323K for 3.6ks were much lower than those of the untreated alloy.
部门归属	[jiang, h. c.; chen, y.; liu, s. w.; rong, l. j.] chinese acad sci, dept mat special environm, inst met res, shenyang 110016, peoples r china.;jiang, hc (reprint author), chinese acad sci, dept mat special environm, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;hcjiang@imr.ac.cn
关键词	Porous Nickel Titanium Shape Memory Alloy Martensite Transformation Self-propagation High-temperature Synthesis Martensitic-transformation Phase Mechanism Temperature
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WOS记录号	WOS:000282197000031
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31176
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. C. Jiang,Y. Chen,S. W. Liu,et al. INFLUENCES OF HEAT TREATMENT ON TRANSFORMATION BEHAVIORS OF NEAR-EQUIATOMIC POROUS NITI SHAPE MEMORY ALLOY[J]. International Journal of Modern Physics B,2010,24(15-16):2410-2416.
APA	H. C. Jiang,Y. Chen,S. W. Liu,&L. J. Rong.(2010).INFLUENCES OF HEAT TREATMENT ON TRANSFORMATION BEHAVIORS OF NEAR-EQUIATOMIC POROUS NITI SHAPE MEMORY ALLOY.International Journal of Modern Physics B,24(15-16),2410-2416.
MLA	H. C. Jiang,et al."INFLUENCES OF HEAT TREATMENT ON TRANSFORMATION BEHAVIORS OF NEAR-EQUIATOMIC POROUS NITI SHAPE MEMORY ALLOY".International Journal of Modern Physics B 24.15-16(2010):2410-2416.