Phase-based constitutive modeling and experimental study for dynamic mechanical behavior of martensitic stainless steel under high strain rate in a thermal cycle

Nie, Zhenguo1,2,3; Wang, Gang1,2,3; Yu, Jianchao1,2,3; Liu, Dehao1,2,3; Rong, Yiming (Kevin)1,2,3,4

2016-10

10.1016/j.mechmat.2016.08.003

MECHANICS OF MATERIALS   影响因子和分区

0167-6636

1872-7743

The material of turbine blades undergoes a complete thermal cycle in creep-feed grinding. The flow stress in the cycle has a significant effect on the residual stress, microtopography, and surface integrity. This study presents a phase-based constitutive model for describing the dynamic mechanical behavior of martensitic stainless steel in a complete thermal cycle. The complete tests were conducted by using thermal compressive deformation via Split Hopkinson Pressure Bar and Gleeble 3500, with temperature ranging from 20 degrees C to 1000 degrees C, and strain rate ranging from 0.001 s(-1) to 16,000 s(-1). Phase transformation kinetics was involved for the dual-phase region, and a modified Johnson-Cook model was employed to determine the dynamic mechanical behavior of single phase. The prediction of the phase-based model correlates well with the experimental data on stress-strain curves. The flow stress is demonstrated to form a loop in a complete thermal cycle, and the results indicated that the temperature history must be considered in the evolution of flow stress in terms of strain, strain rate, and temperature. (C) 2016 Elsevier Ltd. All rights reserved.

Phase-based model Dynamic mechanical behavior Flow stress loop Martensitic stainless steel Creep-feed grinding

SCI ; EI

英语

其他

National Basic Research Program of China[2011CB013404]

Materials Science ; Mechanics

Materials Science, Multidisciplinary ; Mechanics

WOS:000383296000014

ELSEVIER SCIENCE BV

20163302708056

Bridge decks ; Constitutive models ; Creep ; Dynamics ; Grinding (machining) ; Martensitic stainless steel ; Martensitic transformations ; Mechanical testing ; Plastic flow ; Stresses ; Thermal cycling ; Turbomachine blades

Bridges:401.1 ; Metallography:531.2 ; Steel:545.3 ; Machining Operations:604.2 ; Mathematics:921 ; Mechanical Variables Measurements:943.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Tsinghua Univ, State Key Laboratoy Tribol, Beijing 100084, Peoples R China
2.Tsinghua Univ, Inst Mfg Engn, Dept Mech Engn, Beijing 100084, Peoples R China
3.Tsinghua Univ, Beijing Key Lab Precis Ultra Precis Mfg Equipment, Beijing 100084, Peoples R China
4.South Univ Sci & Technol China, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Nie, Zhenguo,Wang, Gang,Yu, Jianchao,et al. Phase-based constitutive modeling and experimental study for dynamic mechanical behavior of martensitic stainless steel under high strain rate in a thermal cycle[J]. MECHANICS OF MATERIALS,2016,101:160-169.

Nie, Zhenguo,Wang, Gang,Yu, Jianchao,Liu, Dehao,&Rong, Yiming .(2016).Phase-based constitutive modeling and experimental study for dynamic mechanical behavior of martensitic stainless steel under high strain rate in a thermal cycle.MECHANICS OF MATERIALS,101,160-169.

Nie, Zhenguo,et al."Phase-based constitutive modeling and experimental study for dynamic mechanical behavior of martensitic stainless steel under high strain rate in a thermal cycle".MECHANICS OF MATERIALS 101(2016):160-169.