金属学报  1987, Vol. 23 Issue (2): 217-252

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粉末高温合金热处理裂纹形成原因的研究

胡本芙;李慧英;章守华

北京钢铁学院;北京钢铁学院;北京钢铁学院

STUDY ON CRACK FORMATION OF P/M SUPERALLOY DURING HEAT TREATMENT

HU Benfu; LI Huiying; ZHANG Shouhua (Beijing University of Iron and Steel Technology)(Manuscript received 21 April; 1985)

胡本芙;李慧英;章守华. 粉末高温合金热处理裂纹形成原因的研究[J]. 金属学报, 1987, 23(2): 217-252.
, , . STUDY ON CRACK FORMATION OF P/M SUPERALLOY DURING HEAT TREATMENT[J]. Acta Metall Sin, 1987, 23(2): 217-252.

摘要 参考文献 相关文章 Metrics 全文: PDF(3059 KB)   摘要: 本文研究了FGH 95合金原颗粒边界(PPB)对淬火裂纹的影响.结果表明,开裂严重的是由于PPB碳化物及在其外表面形成富氧层破坏了合金的连续性,促使沿原颗粒边界断裂.开裂不严重的是由于γ相晶界析出大块γ′相及其周围的贫Al,Ti区形成氧化层,促使沿γ相晶界断裂.淬火裂纹形成的主要原因是氧的污染和淬火冷却速度选择不当。 Abstract：The effect of previous powder-particle boundaries (PPB) on the quench crack has been studied. The serious quench crack is due to the PPB caroides and on their surfaces formation of rich-oxygen layer destroying continuity of alloy and promoting fracture along the previous particle boundaries. The slight quench crack is due to the precipitation in a coarse form at the grain boundaries of γ'-phase. The coarse predipitates are surrounded by Al, Ti depleted zones forming oxide layers which promote the fracture path along the grain boundaries of γ-phase. The major reasons of the formation of quench cracks are the contamination of oxygen and unsuitable quench cooling rate. 收稿日期: 1987-02-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 胡本芙 李慧英 章守华 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I2/217 1 Tien J K, Boesch W J, Howson T E, Castledine W B. P/M Superalloys Aerospace Materials for the 1980's Metal Powder Report Confernce, Zurich, Switzerland, Nov, 1980 2 Aubin C, Davidson J H, Trottier J P. In: Tien J K, ed. Proc. 4th Int. Superalloy Symposium, Seven Springs, 21-25 Sept. 1980, Ohio: ASM, 345-254 3 Waters R E, Charles J A, Lea C. Met Technol, 1981; 8: 194-200 4 Radavich J F, English R. Proc. of Third Annual Purdue University Student-Industry High Temperature Materials Seminar, Dec. 8, 1975, West Lafayette, Indiana 5 胡本芙,金属材料研究,1981;7(2) :4 6 Ingesten N G, Warren R, Winberg L. High Temperature Alloys for Gas Turbines, 1982． In:Brunetand R, et al, eds. Proc. of a Conf'. held in Liege Belgium, 4-6 October 1982, 1013-1027 7 Heat Transfer Modeling and Analytical Quenching of a Powder Metallurgy Turbine Disk During Heat Treatment USARTL-TR-78-6n No related articles found! Viewed Full text Abstract Cited   Shared      Discussed