Hot deformation behavior and processing maps of AISI 420 martensitic stainless steel

被引：68
作者：
Ren, Facai [1 ,2 ]
Chen, Fei [3 ]
Chen, Jun [3 ]
Tang, Xiaoying [1 ]
机构：
[1] Shanghai Inst Special Equipment Inspect & Tech Re, 915 Jinshajiang Rd, Shanghai 200062, Peoples R China
[2] East China Univ Sci & Technol, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China
[3] Shanghai Jiao Tong Univ, Dept Plast Technol, 1954 Huashan Rd, Shanghai 200030, Peoples R China
来源：
JOURNAL OF MANUFACTURING PROCESSES | 2018年 / 31卷
基金：
中国国家自然科学基金;
关键词：
Martensitic stainless steel; Hot deformation; Processing map; Microstructure; NICKEL-BASED SUPERALLOY; DYNAMIC RECRYSTALLIZATION BEHAVIOR; INSTABILITY CRITERIA; LARGE RANGE; STRAIN-RATE; ALLOY; WORKING; WORKABILITY; TEMPERATURE; PARAMETERS;
D O I：
10.1016/j.jmapro.2017.12.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The hot deformation behavior of AISI 420 martensitic stainless steel is investigated though isothermal compression tests using a Gleeble-1500D thermal-mechanical simulator in a temperature range of 1123-1423 K and strain rate of 0.01-10 s(-1). The hot deformation apparent activation energy is calculated about 363 kJ/mol. Processing maps are conducted on the basis of the experimental data and the dynamic materials model (DMM) to reveal the hot workability. When the strain is no less than 0.5, the optimum hot working condition corresponds to the deformation temperature range of 1280-1360 K and strain rate range of 0.01-0.05 s(-1) with a peak power dissipation efficiency of about 0.43 at strain rate of 0.01 s(-1) and temperature of 1323 K. Two instability regions are detected from the processing maps and should be avoided during hot working. (C) 2017 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：640 / 649
页数：10
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