Incoloy901合金的热加工图与热变形行为

doi:10.13251/j.issn.0254-6051.2020.09.006

金属热处理 ›› 2020, Vol. 45 ›› Issue (9): 41-45.DOI: 10.13251/j.issn.0254-6051.2020.09.006

Incoloy901合金的热加工图与热变形行为

陈鹏¹, 郭创立², 高圆¹, 席生岐¹, 王文斌²

1.西安交通大学材料科学与工程学院,陕西西安 710049;
2.陕西斯瑞新材料股份有限公司,陕西西安 710077

收稿日期:2020-03-21 出版日期:2020-09-25 发布日期:2020-12-29
通讯作者: 席生岐,教授,博士,博士生导师,E-mail:xishq@mail.xjtu.edu.cn
作者简介:陈鹏(1994—),男,硕士研究生,主要研究方向为高温合金的加工工艺,E-mail:13679130895@163.com
基金资助:
Incoloy901合金涡轮盘的成分组织及其在拉槽加工过程中变化研究(20180589)

High temperature deformation behavior and processing map of Incoloy901 alloy

Chen Peng¹, Guo Chuangli², Gao Yuan¹, Xi Shengqi¹, Wang W enbin²

1. School of M aterials Science and Engineering,Xi'an Jiaotong University,Xi'an Shaanxi 710049,China;
2. Shaanxi Sirui Advanced Materials Co.,Ltd.,Xi'an Shaanxi 710077,China

Received:2020-03-21 Online:2020-09-25 Published:2020-12-29

摘要/Abstract

摘要： 利用Gleeble-3800热模拟机研究Incoloy901高温合金在变形温度950~1150 ℃,应变速率0.005~1 s^-1,真应变0.6下的热变形行为。结果表明:变形温度大于1000 ℃,应变速率大于0.01 s^-1时,Incoloy901合金真应力-应变曲线呈现动态再结晶特征。根据应力-应变曲线构建Incoloy901合金的本构方程与热加工图,得出形变激活能Q=439.401 kJ/mol,最佳热加工工艺为:变形温度1050~1150 ℃,应变速率0.005~0.1 s^-1,在此工艺范围内合金的高温变形功率耗散系数η较高,可达37%,能获得较好的动态再结晶组织。

关键词: Incoloy901合金, 热压缩, 热加工图, 本构方程

Abstract: Hot deformation behavior of Incoloy901 alloy at deformation temperature between 950-1150 C,strain rate between 0.005-1 s and true strain of 0.6 was studied with Gleeble-3800 thermal simulator machine.The results show that the true stress-strain curve of Incoloy901 alloy presents dynamic recrystallization characteristics when the deformation temperature is higher than 1000 C and the strain rate is greater than0.01 s.According to the stress-strain curve,the constitutive equation and hot working diagram of Incoloy901 alloy are constructed,and the deformation activation energy Q=439.401 kJ/mol is obtained.The optimal hot work ing process consists of deformation at temperature of 1050-1 150 C with strain rate between 0.005-0.1 s-1.Within this process range,the high temperature deformation power dissipation cofficient (η) of the alloy is higher,up to 37%,and better dynamic recrystallization structure can be obtained.

Key words: Incoloy901 alloy, high temperature compression, processing map, constitutive equation

中图分类号:

TG132.3

陈鹏, 郭创立, 高圆, 席生岐, 王文斌. Incoloy901合金的热加工图与热变形行为[J]. 金属热处理, 2020, 45(9): 41-45.

Chen Peng, Guo Chuangli, Gao Yuan, Xi Shengqi, Wang W enbin. High temperature deformation behavior and processing map of Incoloy901 alloy[J]. Heat Treatment of Metals, 2020, 45(9): 41-45.

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Incoloy901合金的热加工图与热变形行为

High temperature deformation behavior and processing map of Incoloy901 alloy

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