热处理制度对GH864合金组织性能的影响
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- 英文论文题名：Effect of Heat Treatment on Microstructures and Properties of GH864 Alloy
- 论文作者：丑英玉 ; 刘晓斌 ; 李凤艳 ; 刘宁 ; 曹政 ; 李如 ; 赵长虹 ; 王志刚
- 英文论文作者：Chou Yingyu ; Liu Xiaobin ; Li Fengyan ; Liu Ning ; Cao Zheng ; Li Ru ; Zhao Changhong ; Wang Zhigang ; R&D Center of Fushun Special Steel Co. ; Ltd.
- 年：2015
- 作者机构：抚顺特殊钢股份有限公司技术中心;
- 论文关键词：GH864合金 ; 热处理 ; 析出相 ; 力学性能
- 英文论文关键词：GH864 alloy ; heat treatment ; precipitated phase ; mechanical property
- 会议召开时间：2015-05-20
- 会议录名称：第十三届中国高温合金年会论文集
- 英文会议录名称：Proceedings of the 13th China Superalloys Conference
- 语种：中文
- 分类号：TG132.3;TG166.7
- 学会代码：ZGJS
- 会议名称：第十三届中国高温合金年会
- 会议地点：中国北京
- 主办单位：中国金属学会高温材料分会
- 学会名称：中国金属学会
- 页数：4
- 文件大小：1157k
- 原文格式：O
- 会议级别：全国
摘要
本文研究了两种热处理制度条件下,GH864合金晶粒尺寸、γ′相尺寸和形貌差异及其对室温拉伸性能和持久性能的影响。结果表明:A制度,经过1020℃保温4h/水冷+845℃保温4h/空冷+760℃保温16h/空冷处理后,γ′相分为大、小两种尺寸,晶粒均匀细小;B制度,经过1080℃保温4h/空冷+845℃保温24h/空冷+760℃保温16h/空冷处理后,γ′相呈均匀细小分布,晶粒粗大。A热处理制度具有更高的室温强度,B热处理制度具有更加优异的持久性能。
GH864 alloy was subject to heat treatment process A and process B respectively,grain size,γ' phase size and morphology and their influence on room temperature tensile properties and durability performance were investigated.The results show that,for GH864 alloy subject to process A,γ 'phase presented two size scales,and the grain was fine;in comparison,for GH864 alloy subject to process B,γ 'phase was uniform and fine,but the grain was coarse.GH864 alloy subject to heat treatment process A has higher tensile strength at room temperature,and GH864 alloy subject to heat treatment process B has better durability performance.
GH864 alloy was subject to heat treatment process A and process B respectively,grain size,γ' phase size and morphology and their influence on room temperature tensile properties and durability performance were investigated.The results show that,for GH864 alloy subject to process A,γ 'phase presented two size scales,and the grain was fine;in comparison,for GH864 alloy subject to process B,γ 'phase was uniform and fine,but the grain was coarse.GH864 alloy subject to heat treatment process A has higher tensile strength at room temperature,and GH864 alloy subject to heat treatment process B has better durability performance.
引文
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[3]Kelekanjeri V,Siva Kumar G,et al.Characterization of microstructure fluctuations in Waspaloy exposed to 760'C for times up to 2500h[J].Electrochimica Acta,2006,51:1873~1880.
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