A Significant Improvement in the Mechanical Properties of AISI 304 Stainless Steel by a Combined RCSR and Annealing Process

被引：23

作者：

Asghari-Rad, Peyman ^{[1
]}

Nili-Ahmadabadi, Mahmoud ^{[1
,2
]}

Shirazi, Hassan ^{[1
]}

Nedjad, Syamak Hossein ^{[2
,3
]}

Koldorf, Sebastian ^{[4
]}

机构：

[1] Univ Tehran, Sch Met & Mat Engn, Coll Engn, Tehran, Iran

[2] Univ Tehran, Sch Met & Mat Engn, Ctr Excellence COE High Performance Mat, Tehran, Iran

[3] Sahand Univ Technol, Fac Mat Engn, Tabriz, Iran

[4] Rhein Westfal TH Aachen, Dept Ferrous Met, Aachen, Germany

来源：

ADVANCED ENGINEERING MATERIALS | 2017年 / 19卷 / 03期

关键词：

DEFORMATION-INDUCED MARTENSITE; AUSTENITIC STAINLESS-STEEL; SEVERE PLASTIC-DEFORMATION; HIGH-PRESSURE TORSION; REPETITIVE CORRUGATION; INDUCED TRANSFORMATION; PHASE-TRANSFORMATION; GRAIN-REFINEMENT; STRAIN STATE; TRIP STEEL;

D O I：

10.1002/adem.201600663

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of a new severe plastic deformation method, repetitive corrugation and straightening by rolling (RCSR) on AISI 304 stainless steel is investigated. A thermo-mechanical treatment based on the reversion of -martensite is applied to produce fine-grained structure. Microstructural characterizations are conducted by X-ray diffraction and electron backscattered diffraction. Mechanical properties are investigated by measuring uniaxial tensile properties. It was found that the amount of strain-induced martensite increases monotonically with increasing of applied strain, yielding up to 90vol% of martensite after 30 cycles of the RCSR process. By applying a subsequent annealing, austenite grain size is decreased considerably, which leads to substantial strengthening.

引用

页数：8

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