IMECH-IR  > 水动力学与海洋工程重点实验室(2009-2011)
热处理对定向凝固Co基合金微观组织的影响
Alternative TitleEffect of Heat-treatment on Microstructure of Directional Solidification Co-base Superalloy
孙跃军; 林陌思; 葛艳辉; 张军
Source Publication热加工工艺
2011
Volume40Issue:12Pages:152-154,159
ISSN1001-3814
Abstract利用XRD和扫描电镜研究了热处理对一种定向凝固Co基合金微观组织的影响。结果表明:Co基合金的铸态组织主要由Co的固溶体基体、M_7C_3、MC和M_(23)C_6碳化物组成,其中M_7C_3和MC为块状,主要分布在枝晶间,M_(23)C_6呈颗粒状,分布在块状M_7C_3和MC周围。合金经1150℃×4h固溶处理后,大部分块状M_7C_3和MC溶入Co的固溶体基体中,在随后的空冷中析出颗粒状M_(23)C_6。在870℃和970℃时效时,随时效温度的升高和时效时间的延长,合金中M23C6的尺寸逐渐增大。
Other AbstractThe effects of heat-treatment on the microstructure of directional solidification Co-base superalloy were investigated using XRD and SEM.The results show that the microstructure of Co-base superalloy as-cast is composed of Co matrix,M7C3,MC and M23C6.Among them,MC and M7C3 distributes in inter dentrite and M23C6 near the MC and M7C3.After solid solution heat-treating at 1150 ℃ for 4 h,most MC and M7C3 dissolves into Co-base matrix,M23C6 is deposited from Co matrix during following air cooling.When aging at 870 ℃and 970 ℃,the size of M23C6 increases with the increase of temperature and aging time.
Keyword定向凝固co基合金 固溶 时效 碳化物
Subject Area力学
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Indexed ByCSCD
Language中文
CSCD IDCSCD:4425540
DepartmentLMFS多相流及流固耦合(LHO)
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45056
Collection水动力学与海洋工程重点实验室(2009-2011)
Corresponding Author孙跃军
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GB/T 7714
孙跃军,林陌思,葛艳辉,等. 热处理对定向凝固Co基合金微观组织的影响[J]. 热加工工艺,2011,40(12):152-154,159.
APA 孙跃军,林陌思,葛艳辉,&张军.(2011).热处理对定向凝固Co基合金微观组织的影响.热加工工艺,40(12),152-154,159.
MLA 孙跃军,et al."热处理对定向凝固Co基合金微观组织的影响".热加工工艺 40.12(2011):152-154,159.
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