Microstructural investigation of four kinds of gamma '-Fe4N nitrides in ion-nitrided pure iron

IMR OpenIR

	Microstructural investigation of four kinds of gamma '-Fe4N nitrides in ion-nitrided pure iron
	Z. Q. Liu; Z. K. Hei; D. X. Li
	2002
发表期刊	Journal of Materials Research
ISSN	0884-2914
卷号	17 期号:10 页码:2621-2627
摘要	Conventional and high-resolution electron microscopies were used to investigate the microstructure and precipitation mechanism of four kinds of gamma'-Fe4N nitrides, formed at the surface during nitriding of polycrystalline pure iron sheet. gamma' nitrides in the top columnar compound layer were thin plates (3-12 nm), which precipitated from epsilon-Fe2-3N grains with orientation relationship of (1 (1) over bar1)gamma'//(0001)epsilon and [011]gamma'//[1 (2) over bar 10]epsilon. Those in the transition compound layer remained as equiaxed grains (1-1.5 mum), which grew from the alpha-Fe substrate during nitriding. In the diffusion layer, striated gamma' nitrides nucleated from alpha"-Fe16N2 nitrides with orientation relationship of (100)gamma'// (1 (1) over bar0)alpha" and [011]gamma'//[111]alpha", while unstriated gamma' nitrides precipitated from the alpha-Fe substrate with the orientation relationship of (100)gamma'//(1 (1) over bar0)alpha and [011]-gamma'//[111]alpha.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. dalian maritime univ, inst mat & technol, dalian 116026, peoples r china.;liu, zq (reprint author), natl inst mat sci, nanomat lab, 3-13 sakura, tsukuba, ibaraki 3050003, japan;liu.zhiquan@nims.gp.jp
关键词	Resolution Electron-microscopy Phase-transformations Tial Alloy Nitrogen Alpha''-fe16n2 Identification Precipitation Interfaces Mechanism Growth
URL	查看原文
WOS记录号	WOS:000178351400021
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36358
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. Q. Liu,Z. K. Hei,D. X. Li. Microstructural investigation of four kinds of gamma '-Fe4N nitrides in ion-nitrided pure iron[J]. Journal of Materials Research,2002,17(10):2621-2627.
APA	Z. Q. Liu,Z. K. Hei,&D. X. Li.(2002).Microstructural investigation of four kinds of gamma '-Fe4N nitrides in ion-nitrided pure iron.Journal of Materials Research,17(10),2621-2627.
MLA	Z. Q. Liu,et al."Microstructural investigation of four kinds of gamma '-Fe4N nitrides in ion-nitrided pure iron".Journal of Materials Research 17.10(2002):2621-2627.