Enhanced intergranular corrosion resistance and tensile strength in 304 stainless steel with dispersed nanocrystallines in microcrystalline austenite

doi:10.1557/jmr.2016.167

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Enhanced intergranular corrosion resistance and tensile strength in 304 stainless steel with dispersed nanocrystallines in microcrystalline austenite
	Wei, Fuan 2; La, Peiqing 2; Ma, Fuliang 2; Donic, Tibor 1; Wang, Hongding 3
刊名	JOURNAL OF MATERIALS RESEARCH
	2016-06-28
卷号	31 期号:12 页码:1691-1701
关键词	304 stainless steel aluminothermic reaction thickness reduction microstructures tensile properties
ISSN号	0884-2914
DOI	10.1557/jmr.2016.167
英文摘要	Microstructure evolution and tensile properties of large dimensional bulk 304 stainless steel after being rolled with different thickness reductions were characterized in detail. The results showed that the steel consisted of nano-submicro-microcrystalline austenite and nanocrystalline ferrite. Submicrocrystalline austenite was broken down with the thickness reduction, when thickness reduction was 70%, all submicrocrystalline were broken down to nanocrocrystalline, and dispersed more uniformly in the microcrystalline austenite phase in the steel, but the grain size of the nanocrystalline austenite increased to 70 nm. Tensile strength increased from 850 MPa to 965 MPa, yield strength increased from 652 MPa to 837 MPa, elongation decreased from 33% to 19%, intergranular corrosion rate decreased from 1.36 g/(m(2) h) to 0.46 g/(m(2) h). Strength and intergranular corrosion properties increased much. When the thickness reduction was 70%, the tensile strength, yield strength, elongation, and intergranular corrosion properties were the best in the reported value of the steel.
资助项目	National Natural Science Foundation of China[50674051]
WOS研究方向	Materials Science
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000379208600006
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33662]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
通讯作者	La, Peiqing
作者单位	1.Univ Zilina, Fac Mech Engn, Zilina 101026, Slovakia 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 3.Lanzhou Jiaotong Univ, Sch Mechatron Engn, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Wei, Fuan,La, Peiqing,Ma, Fuliang,et al. Enhanced intergranular corrosion resistance and tensile strength in 304 stainless steel with dispersed nanocrystallines in microcrystalline austenite[J]. JOURNAL OF MATERIALS RESEARCH,2016,31(12):1691-1701.
APA	Wei, Fuan,La, Peiqing,Ma, Fuliang,Donic, Tibor,&Wang, Hongding.(2016).Enhanced intergranular corrosion resistance and tensile strength in 304 stainless steel with dispersed nanocrystallines in microcrystalline austenite.JOURNAL OF MATERIALS RESEARCH,31(12),1691-1701.
MLA	Wei, Fuan,et al."Enhanced intergranular corrosion resistance and tensile strength in 304 stainless steel with dispersed nanocrystallines in microcrystalline austenite".JOURNAL OF MATERIALS RESEARCH 31.12(2016):1691-1701.