Independence of work hardening and precipitation strengthening in a nanocluster strengthened steel

被引：30

作者：

Xu, S. S. ^{[1
]}

Zhao, Y. ^{[1
]}

Tong, X. ^{[2
,3
]}

Guo, H. ^{[1
]}

Chen, L. ^{[4
,5
]}

Sun, L. W. ^{[4
,5
]}

Peng, M. ^{[4
,5
]}

Chen, Mj. ^{[1
]}

Chen, D. ^{[1
]}

Cui, Y. ^{[1
]}

Sun, G. A. ^{[4
,5
]}

Peng, S. M. ^{[4
,5
]}

Zhang, Z. W. ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China

[2] Oak Ridge Natl Lab, Instrument & Source Div, Oak Ridge, TN 37831 USA

[3] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[4] China Acad Engn Phys, Key Lab Neutron Phys, Mianyang 621999, Peoples R China

[5] China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621999, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 712卷

基金：

美国能源部;

关键词：

Nanocluster strengthened steel; Small-angle neutron scattering; Work hardening; Precipitation strengthening; COPPER PRECIPITATION; CU; BEHAVIOR; MICROSTRUCTURE; SIMULATION; IRON; MO;

D O I：

10.1016/j.jallcom.2017.04.143

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Work hardening and precipitation strengthening are two important strengthening methods that closely associate with dislocation density. Here, a new class of nanocluster strengthened steel with a tensile strength of -2.02 GPa and an elongation of -7% is developed through a combination of work hardening and precipitation strengthening. The work hardening is strongly dependent on the dislocation density induced by thermomechanical treatments while there is no effect for dislocation density on precipitation strengthening. The work hardening and precipitation strengthening are independent and can be controlled separately. The strengthening effects of nanoscale precipitates are quantitatively analyzed and assessed. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：573 / 578

页数：6

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