Incoloy028挤压管析出相分析及解决途径

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• 英文论文题名：Analysis and Eliminating of Precipitating Phases of Incoloy 028 Extruded Tube
• 论文作者：方轶
• 英文论文作者：Fang Yi ; Technical Center ; Pangang Group Jiangyou Changcheng Special Steel Co. ; Ltd.
• 年：2015
• 作者机构：攀钢集团江油长城特殊钢有限公司技术中心;
• 论文关键词：028合金 ; 析出相 ; 固溶处理
• 英文论文关键词：028 alloy ; precipitated phase ; solid solution treatment
• 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：TG379;TG339
• 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：1524k
• 原文格式：O
• 会议级别：全国

摘要

Incoloy 028合金在热加工过程中质量控制难度较高,特别是大尺寸棒坯的中心部位,易产生析出相,会影响后续加工的成品管质量。本文以φ320棒坯经挤压、冷轧生产工艺为例,采用SEM、EDS、XRD等方法分析了028合金中的析出相微观形貌和结构。试验结果表明:原材料的质量会影响成品管的质量,固溶处理可以消除028合金挤压管中的析出相,对挤压荒管进行固溶处理是十分必要的。800℃至850℃下进行热处理,028合金析出相为Cr_(23)C_6和σ相;850℃至1050℃下进行热处理,028合金析出相为σ相;1100℃进行热处理可以消除析出相。
It is difficult to control the quality of Incoloy alloy 028 during hot working,especially the quality of the center of the large-size bar stock,where phases precipitate.This furthermore affects negatively the quality of the finished tubes subjecting to subsequent processing.In this paper,taking the production process of extruding and cold rolling of as example,the micro morphology and structure of the precipitated phases in 028 alloys were analyzed with the methods of SEM,EDS and XRD.The results showed that the quality of raw material will affect the quality of finished tube;solid solution treatment could eliminate the precipitated phases presented in 028 alloys and so this treatment is necessary for extruded mother hollows;when heat treated at the temperature range from 8001 to 8501,the precipitated phases were Cr_(23)C_6 and σ;when heat treated at the temperature range from 800℃ to 1050℃,the precipitated phases were a;heat treatment under 1100℃could eliminate precipitated phases in 028 alloy.

引文

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