Article(id=1322281951994688220, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1322281938308677669, articleNumber=null, orderNo=null, doi=10.11868/j.issn.1001-4381.2025.000499, pmid=null, cstr=32421.14.j.issn.1001-4381.2025.000499, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1740585600000, receivedDateStr=2025-02-27, revisedDate=null, revisedDateStr=null, acceptedDate=1745596800000, acceptedDateStr=2025-04-26, onlineDate=1793186184165, onlineDateStr=2026-10-28, pubDate=1784476800000, pubDateStr=2026-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793186184165, onlineIssueDateStr=2026-10-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793186184165, creator=13701087609, updateTime=1793186184165, updator=13701087609, issue=Issue{id=1322281938308677669, tenantId=1146029695717560320, journalId=1220038251117760515, year='2026', volume='54', issue='7', pageStart='1', pageEnd='347', issueExtLink='null', onlineDate='null', pubDate='1784476800000', pubDateStr='2026-07-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1793186180903, creator='13701087609', updateTime=1793186267843, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322282303045349604, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1322281938308677669, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322282303045349605, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1322281938308677669, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=192, endPage=200, ext={EN=ArticleExt(id=1322281952200209117, articleId=1322281951994688220, tenantId=1146029695717560320, journalId=1220038251117760515, language=EN, title=Thin-wall effects on stress rupture property of single crystal superalloy investment cast specimen, columnId=1220689384450478826, journalTitle=Journal of Materials Engineering, columnName=RESEARCH ARTICLE, runingTitle=null, highlight=null, articleAbstract=
Thin-walled specimens of DD6 single-crystal superalloy with varying thicknesses are fabricated using the Bridgman method. An investigation is carried out to examine the influence of cross-sectional size on the stress-rupture properties of these thin-walled specimens under the conditions of 980 ℃/250 MPa and 1100 ℃/130 MPa. The results reveal that a thin-walled phenomenon occurs in specimens with a thickness less than 1.0 mm at 980 ℃/250 MPa and less than 1.5 mm at 1100 ℃/130 MPa. This thin-walled becomes more pronounced at elevated temperatures. The reduction in the effective loading area, which is attributed to oxidation and internal nitridation, serves as the primary factor contributing to the decline in the stress-rupture properties of thin-walled specimens. Based on the relationship between creep properties and microstructure, a concept of the thin-wall effect coefficient for single-crystal superalloys has been proposed. By utilizing specific surface area as a crucial intermediate variable, this method facilitates the extrapolation of the creep life for thin-walled components.
, authors=Liang YANG
1, Ke LI
2, Zefeng YU
2, Shixin TAN
2, Xiaoming HUANG
2, Jiarong LI
1, Shizhong LIU
1, Mei HAN
1, authorsList=Liang YANG, Ke LI, Zefeng YU, Shixin TAN, Xiaoming HUANG, Jiarong LI, Shizhong LIU, Mei HAN, authorCompany=null, correspAuthors=Jiarong LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322281955979277045, articleId=1322281951994688220, tenantId=1146029695717560320, journalId=1220038251117760515, language=CN, title=一种单晶高温合金精铸薄壁试样持久性能的薄壁效应, columnId=1220689384622445292, journalTitle=材料工程, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
采用高速凝固法制备不同厚度的单晶高温合金精铸薄壁试样,研究截面尺寸对DD6单晶高温合金精铸薄壁试样980 ℃/250 MPa和1100 ℃/130 MPa持久性能的影响规律。结果表明:980 ℃/250 MPa条件下截面尺寸小于1.0 mm时,以及1100 ℃/130 MPa条件下截面尺寸小于1.5 mm时,DD6单晶高温合金精铸薄壁试样的持久寿命存在薄壁效应。表面氧化和内氮化等环境损伤造成的有效承载面积的减少是单晶高温合金精铸薄壁试样持久寿命降低的主要原因,并提出了单晶高温合金薄壁效应系数概念。基于持久性能与显微组织的关联性,提出了单晶高温合金薄壁效应系数概念,以比表面积为主要中间变量进行薄壁件持久寿命外推。
, authors=杨亮
1, 李克
2, 俞泽丰
2, 谭诗薪
2, 黄晓鸣
2, 李嘉荣
1, 刘世忠
1, 韩梅
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李嘉荣(1962—),男,研究员,博士,主要从事单晶高温合金研究,联系地址:北京市81信箱8分箱(100095),E-mail:
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476(1/2):39-45., articleTitle=Influence of γ′ precipitate morphology on the creep property of a directionally solidified nickel-base superalloy, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1322281956226740982, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, xref=1., ext=[AuthorCompanyExt(id=1322281956235129591, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, companyId=1322281956226740982, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Sampling schematic of investment cast single crystal superalloy plate stress rupture specimens, figureFileSmall=Osp+25F6wg1BG7wuRgiL+w==, figureFileBig=cpDrsNrkh5z9Hq4VNXowjQ==, tableContent=null), ArticleFig(id=1322281962555945774, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图1, caption=
单晶高温合金精铸板形持久试样取样示意图, figureFileSmall=Osp+25F6wg1BG7wuRgiL+w==, figureFileBig=cpDrsNrkh5z9Hq4VNXowjQ==, tableContent=null), ArticleFig(id=1322281963248005935, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.2, caption=
Heat-treatmented state γ' phase at dendritic core of single crystal superalloy thin-walled specimens with different section sizes, figureFileSmall=kw8RZTdzBPL+uimaI7KFcw==, figureFileBig=tWFsmfLJzkvWJwNLACcrQg==, tableContent=null), ArticleFig(id=1322281964967670577, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图2, caption=
不同截面尺寸单晶高温合金薄壁板形试样枝晶干热处理态γ'相(a)0.75 mm;(b)1.5 mm;(c)2.0 mm
, figureFileSmall=kw8RZTdzBPL+uimaI7KFcw==, figureFileBig=tWFsmfLJzkvWJwNLACcrQg==, tableContent=null), ArticleFig(id=1322281965299020594, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.3, caption=
Stress rupture lives of single crystal superalloy investment cast thin-walled specimen with different section sizes at 980 ℃/250 MPa, figureFileSmall=qq6KpekROmbAJp73z+ur4w==, figureFileBig=wZNSrnbVn1nKuvevDXVqQA==, tableContent=null), ArticleFig(id=1322281965403878195, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图3, caption=
不同截面尺寸单晶高温合金精铸薄壁试样980 ℃/250 MPa持久寿命, figureFileSmall=qq6KpekROmbAJp73z+ur4w==, figureFileBig=wZNSrnbVn1nKuvevDXVqQA==, tableContent=null), ArticleFig(id=1322281965475181364, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.4, caption=
Fractographs of single crystal superalloy investment cast thin-walled specimens with different sections sizes at 980 ℃/250 MPa, figureFileSmall=uhfZwE7NCZpYylx2/tk8xw==, figureFileBig=QPP+FcZ/lxNsUio2zhT4eA==, tableContent=null), ArticleFig(id=1322281965731033909, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图4, caption=
不同截面厚度单晶高温合金精铸薄壁试样980 ℃/250 MPa持久断口形貌(a)0.5 mm;(b)0.75 mm;(c)1.0 mm;(d)1.5 mm;(e)2.0 mm
(a)0.5 mm;(b)0.75 mm;(c)1.0 mm;(d)1.5 mm;(e)2.0 mm
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Stress rupture lives of single crystal superalloy investment cast thin-walled specimens with different section sizes at 1100 ℃/130 MPa, figureFileSmall=ritTFpyJGHmx++0Ld3F1fg==, figureFileBig=6gVN3QIuQ31C1ooUsPr9Bg==, tableContent=null), ArticleFig(id=1322281965873640247, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图5, caption=
不同截面尺寸单晶高温合金精铸薄壁试样1100 ℃/130 MPa持久寿命, figureFileSmall=ritTFpyJGHmx++0Ld3F1fg==, figureFileBig=6gVN3QIuQ31C1ooUsPr9Bg==, tableContent=null), ArticleFig(id=1322281965936554808, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.6, caption=
Fractographs of single crystal superalloy investment cast thin-walled specimens with different section sizes at 1100 ℃/130 MPa, figureFileSmall=FbrNhS7jyQ/iClTRSORoUA==, figureFileBig=TfDZvXI4K21Oac1kMI5qxA==, tableContent=null), ArticleFig(id=1322281965995275066, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图6, caption=
不同截面厚度单晶高温合金精铸薄壁试样1100 ℃/130 MPa持久断口形貌(a)0.5 mm;(b)0.75 mm;(c)1.0 mm;(d)1.5 mm
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Normalized stress rupture lives of single crystal superalloy investment cast thin-walled specimens, figureFileSmall=5pO1NeBq5jhpGcbM9swqZQ==, figureFileBig=vBQXXaINxsu+cPSr8nuvGQ==, tableContent=null), ArticleFig(id=1322281966230156092, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图7, caption=
单晶高温合金精铸薄壁试样归一化的持久寿命对比, figureFileSmall=5pO1NeBq5jhpGcbM9swqZQ==, figureFileBig=vBQXXaINxsu+cPSr8nuvGQ==, tableContent=null), ArticleFig(id=1322281966402122557, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.8, caption=
Oxidation and nitriding behavior of single crystal superalloy(a)SEM image of frocture structure;(b),(c)internal oxidation;(d),(e) internal nitridation;(f)microcrack, figureFileSmall=suSQZxyGn7Zi46ZNFRJ8Iw==, figureFileBig=GDFxwEiqjrDBFJ15R4+aWg==, tableContent=null), ArticleFig(id=1322281966565700414, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图8, caption=
单晶高温合金的氧化和氮化行为 (a)断口组织SEM图;(b),(c)内氧化;(d),(e)内氮化;(f)微裂纹, figureFileSmall=suSQZxyGn7Zi46ZNFRJ8Iw==, figureFileBig=GDFxwEiqjrDBFJ15R4+aWg==, tableContent=null), ArticleFig(id=1322281966641197887, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.9, caption=
Relation between normalized stress rupture lives and γ' phase size of single crystal superalloy investment cast thin-walled specimens, figureFileSmall=AqcAg+C9ci+CGgC6gHIZ7w==, figureFileBig=019HOaEpEuOm9E5+I+E59A==, tableContent=null), ArticleFig(id=1322281966708306752, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图9, caption=
单晶高温合金薄壁试样归一化的持久寿命与γ'相尺寸关系, figureFileSmall=AqcAg+C9ci+CGgC6gHIZ7w==, figureFileBig=019HOaEpEuOm9E5+I+E59A==, tableContent=null), ArticleFig(id=1322281966792192833, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.10, caption=
Schematic diagram of single crystal supalloy thin-walled specimens, figureFileSmall=3Ext/H3+5A+99QhkL1En8Q==, figureFileBig=73R73qmmly8wQxga7m1OPg==, tableContent=null), ArticleFig(id=1322281966855107394, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图10, caption=
单晶高温合金薄壁效应示意图, figureFileSmall=3Ext/H3+5A+99QhkL1En8Q==, figureFileBig=73R73qmmly8wQxga7m1OPg==, tableContent=null), ArticleFig(id=1322281967039656771, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Fig.11, caption=
Relation between thin-wall debit coefficient of single crystal superalloy investment cast specimens and specific surface area, figureFileSmall=UkFvUCleAc4rNs/jiXZvrg==, figureFileBig=GplCzlaGCLmgxbLaUy7jRg==, tableContent=null), ArticleFig(id=1322281967119348548, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=CN, label=图11, caption=
单晶高温合金精铸薄壁试样薄壁效应系数与比表面积关系, figureFileSmall=UkFvUCleAc4rNs/jiXZvrg==, figureFileBig=GplCzlaGCLmgxbLaUy7jRg==, tableContent=null), ArticleFig(id=1322281967215817542, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1322281951994688220, language=EN, label=Table 1, caption=
Chemical composition of DD6 alloy (mass fraction/%)
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| Cr | Hf | Re | Nb | Ta | Al | W | Co | Mo | Ni |
|---|
| 4.3 | 0.1 | 2 | 0.5 | 7.5 | 5.6 | 8 | 9 | 2 | Bal. |
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DD6单晶高温合金的化学成分(质量分数/%)
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| Cr | Hf | Re | Nb | Ta | Al | W | Co | Mo | Ni |
|---|
| 4.3 | 0.1 | 2 | 0.5 | 7.5 | 5.6 | 8 | 9 | 2 | Bal. |
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