EFFECTS OF MICROSTRUCTURAL VARIABLES ON THE DEFORMATION-BEHAVIOR OF DUAL-PHASE STEEL

	EFFECTS OF MICROSTRUCTURAL VARIABLES ON THE DEFORMATION-BEHAVIOR OF DUAL-PHASE STEEL
其他题名	论文其他题名
	Jiang Z. H.; Guan Z. Z.; Lian J. S.
	1995
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	190 期号:1—2 页码:55-64
摘要	An expression for the stress of martensite in dual-phase steel was developed, which shows the interdependence of the stress of martensite and strain hardening in the ferrite matrix and the contribution of microstructural variables (the volume fraction of martensite f(m), ferrite grain size d(f), and martensite particle size d(m)). The onset of plastic deformation of martensite in dual-phase steel was predicted to depend on its yield strength and the microstructural variables, and this was verified by teh modified Crussard-Jaoul analysis. It was found that for this dual-phase steel, refining the grain size and increasing f(m) increase the flow stress and raise the strain hardening rate at low strains, but little affect the strain hardening rate at high strains. The effect of the ferrite grain size on the flow stress of this dual-phase steel was found to obey the Hall-Petch relation, i.e. sigma=sigma(0)(e)+K(e)d(f)(-1/2), where the Hall-Petch intersection sigma(0)(e) and slope K-e are functions of strain, f(m) and d(m). The effects of the plastic deformation of martensite and the microstructural variables on the strain hardening rate and the Hall-Petch behaviour were analysed in terms of the densities of statistically stored dislocations and geometrically necessary dislocations using the previously developed theoretical model.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25461
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Jiang Z. H.,Guan Z. Z.,Lian J. S.. EFFECTS OF MICROSTRUCTURAL VARIABLES ON THE DEFORMATION-BEHAVIOR OF DUAL-PHASE STEEL[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,1995,190(1—2):55-64.
APA	Jiang Z. H.,Guan Z. Z.,&Lian J. S..(1995).EFFECTS OF MICROSTRUCTURAL VARIABLES ON THE DEFORMATION-BEHAVIOR OF DUAL-PHASE STEEL.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,190(1—2),55-64.
MLA	Jiang Z. H.,et al."EFFECTS OF MICROSTRUCTURAL VARIABLES ON THE DEFORMATION-BEHAVIOR OF DUAL-PHASE STEEL".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 190.1—2(1995):55-64.

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