金属学报  1990, Vol. 26 Issue (2): 125-131

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Ni-Hf合金钎焊料的显微组织和钎接作用

郑运荣;阮中慈

北京航空材料研究所4室;高级工程师;北京(100095);北京航空材料研究所

MICROSTRUCTURE AND PERFORMANCE OF Ni-Hf BRAZING FILLER ALLOY

ZHENG Yunrong;RUAN Zhongci Institute of Aeronautical Materials; Beijing Senior Engineer; Laboratory No.4;Institute of Aeronautical Materials; Beijing 100095

郑运荣;阮中慈. Ni-Hf合金钎焊料的显微组织和钎接作用[J]. 金属学报, 1990, 26(2): 125-131.
, . MICROSTRUCTURE AND PERFORMANCE OF Ni-Hf BRAZING FILLER ALLOY[J]. Acta Metall Sin, 1990, 26(2): 125-131.

摘要 参考文献 相关文章 Metrics 全文: PDF(2453 KB)   摘要: 参照含Hf铸造镍基合金在凝固最后阶段包围γ枝晶的富Hf熔体,熔炼了Ni-18.6Co-4.5Cr-4.7W-25.6Hf合金钎焊料。这种共晶合金初生的Ni_5Hf相呈长棒状,γ+Ni_5Hf共晶中的γ相为领先相,棒状γ相被Ni_5Hf相包围。在垂直和平行于γ生长方向的磨面上共晶分别呈蜂窝状和片状。合金中Ni_5Hf相含量为68.7v.-％。初生和共晶中的Ni_5Hf相成分相近,主要为Ni,Co,Hf。而Cr和W在该相中的溶解度很低。该合金是一种较理想的定向和单晶高温合金用的钎焊料。其组成元素都是有益元素。熔点低,流动性好,在10~(-3)Pa真空下经1240℃,5min+1190℃,1h钎焊处理后,焊缝区的显微组织与含Hf高温合金的完全相同,达到了无Si,B钎接。 关键词 ： Ni-Hf钎焊料,  含Hf铸造镍基合金,  Ni_5Hf相,  钎焊     Abstract：In consideration of the envelopment of γ dendrites by the Hf-richmelts, saying brazing by the melts together, at the late period of solidification of thecast Ni-base superalloys containing Hf, a heat of brazing filler alloy composed ofNi-18.6Co-4.5Cr-4.7W-25.6Hf (wt-%) was prepared. This alloy is hypereutectic. γphase is the leading phase in eutectic γ+Ni_5Hf and γ bars are surrounded by Ni_5Hfphase. At the section perpendicular or parallel to the γ growing direction, the eutec-tic morphology is cellular or laminar respectively. The content of Ni_5Hf in thealloy is 68.7 v. -%. The compositions of primary and eutectic Ni_5Hf are very similar.Ni, Co and Hf are the main elements and the solubility of Cr and W in Ni_5Hf isvery low. This alloy is an ideal brazing filler suitable to the directional or singlecrystal superalloys, and the elements are beneficial to superalloys at all. This alloyis of low melting point and of good fluidity. After brazing at 1240℃, 5 min+1190℃, 1h under 10~(-3) Pa vacuum, the microstructure of bond is as same as thatof Hf-bearing superalloy. No more Si and B will be contaminated. Key words： Ni-Hf brazing alloy    Hf-bearing Ni-base superalloy    Ni_5Hf phase    brazing 收稿日期: 1990-02-18      基金资助:国家自然科学基金 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 郑运荣 阮中慈 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1990/V26/I2/125 1 郑运荣.金属学报,1986;22:A119 2 郑运荣.焊接学报,1988;9:162 3 Zheng Yunrong, Li Chenggong. In: Duhl D N Maurer G, Antolovich S, Lund C, Reichman S., eds, Superalloys 1988, AIME, 1988: 475 4 Massalski T B, Murray J L, Bennett L H, Baker H. Binary Alloy Phase Diagrams, Vo1． II, Metals Park, Ohio: ASM, 1986: 1300 5 Duvall D S, Owczarski W A, Paulonis D F. Weld J, 1974; 53: 203 6 Zheng Yunrong, Wang Luobao, Li Chenggong. Chin J Met Sci Technol, 1989; 5: 90u [1] 赵旭,孙元,侯星宇,张洪宇,周亦胄,丁雨田. 取向偏差对镍基单晶高温合金钎焊接头组织与力学性能的影响[J]. 金属学报, 2020, 56(2): 171-181. [2] 张笑一, 尚海龙, 马冰洋, 李荣斌, 李戈扬. 镀膜Al箔钎料对AlN陶瓷的钎焊[J]. 金属学报, 2018, 54(4): 575-580. [3] 刘积厚,赵洪运,李卓霖,宋晓国,董红杰,赵一璇,冯吉才. Cu/Sn/Cu超声-TLP接头的显微组织与力学性能[J]. 金属学报, 2017, 53(2): 227-232. [4] 刘葛亮, 马冰洋, 尚海龙, 陈凡, 李荣斌, 李戈扬. 溅射Al对Si3N4润湿性的改善与钎焊[J]. 金属学报, 2017, 53(12): 1645-1650. [5] 孙元,刘纪德,侯星宇,王广磊,杨金侠,金涛,周亦胄. DD5单晶高温合金大间隙钎焊的组织演变与界面形成机制*[J]. 金属学报, 2016, 52(7): 875-882. [6] 付伟,宋晓国,龙隆,柴鉴航,冯吉才,王国栋. 石墨/紫铜间接钎焊接头的界面组织及力学性能*[J]. 金属学报, 2016, 52(6): 734-740. [7] 羊浩, 黄继华, 陈树海, 赵兴科, 王奇, 李德华. Zn-Al钎料成分对Cu/Zn-Al/Al钎焊接头界面结构及性能的影响[J]. 金属学报, 2015, 51(3): 364-370. [8] 孙元,刘纪德,刘忠明,杨金侠,李金国,金涛,孙晓峰. 钴基钎料钎焊DD5单晶高温合金的接头微观组织演变与力学性能研究[J]. 金属学报, 2013, 49(12): 1581-1589. [9] 张青科,裴夤崟,龙伟民. 奥氏体不锈钢钎焊界面裂纹形成机制研究[J]. 金属学报, 2013, 49(10): 1177-1184. [10] 秦国梁 苏玉虎 王术军. 铝合金/镀锌钢板脉冲MIG电弧熔-钎焊接头组织与性能[J]. 金属学报, 2012, 48(8): 1018-1024. [11] 王辉 何思渊 褚旭明 何德坪. Zn--Al--Cu基合金无钎剂钎焊泡沫铝的界面结构及力学性能[J]. 金属学报, 2009, 45(6): 723-728. [12] 林三宝 宋建岭 杨春利 马广超. 铝合金/不锈钢钨极氩弧熔-钎焊接头界面层的微观结构分析[J]. 金属学报, 2009, 45(10): 1211-1216. [13] 翟秋亚; 梁存琨; 成军; 徐锦锋; 刘军平; 薛群胜 . 铜基微晶钎料真空钎焊25Cr3MoA/YG6[J]. 金属学报, 2008, 44(9): 1136-1140 . [14] 赵杰; 迟成宇; 程从前 . Bi对Sn-3Ag-0.5Cu/Cu无铅钎焊接头剪切强度的影响[J]. 金属学报, 2008, 44(4): 473-477 . [15] 蒋文春; 巩建明; 陈虎; 涂善东 . 不锈钢板翅结构钎焊残余应力及其影响因素[J]. 金属学报, 2008, 44(1): 105-111 . Viewed Full text Abstract Cited   Shared      Discussed