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Trans. Nonferrous Met. Soc. China 26(2016) 1885-1891 Relationship between microstructure and mechanical properties of undercooled K4169 superalloy Ke-ren ZHANG1, Fa-qin XIE2, Rui HU1, Xiang-qing... cycling and the mechanical properties of undercooled K4169 with as-solidified state were tested. Microstructures and phases composition in undercooled bulk K4169 superalloy were identified......
. 关键词:高温合金；K4169；热等静压；力学性能；显微组织 中图分类号:TG146.15；TG132.32 文献标志码:A Effect of hot isostatic pressing on microstructures and properties of superalloy K4169 WANG Kai, WANG Jun, KANG... of soaking time in hot isostatic pressing on strength of Inconel 718 superalloy[J]. Express Regular Article, 2006, 47(2): 426-432. [9] 赵京晨, 燕 平. 热等静压处理对K4169合金的改善作用[J]. 钢铁研究学报, 2003, 15(7): 200-203. ZHAO......
Article ID: 1003-6326(2005)02-0280-06 Mechanical properties of fine grained superalloy K4169 with addition of refiners HUANG Tai-wen(黄太文)1, LIU Lin(刘 林)2, YANG Ai-min(杨爱民)2, XIONG Yu-hua(熊... Petroleum Institute, Xi'an 710065, China; 3. Beijing General Research Institute for Non-ferrous Metals, Beijing 100088, China) Abstract: Grain refinement of superalloy K4169 was achieved by adding refiners......
Mechanisms of reactive element Y on the purification of K4169 superalloy during vacuum induction meltingQing-ling Li1,Hua-rui Zhang1,Ming Gao1,Jin-peng Li1,Tong-xiao Tao2,Hu Zhang11. School... on the purification of K4169 superalloy during vacuum induction melting were investigated at different superheating temperatures. The corresponding interaction mechanisms were also clarified. Results......
键词:真空感应熔炼；镍基高温合金；夹杂物；形成机理 中图分类号:TG132.32 文献标志码:A Feature and formation mechanism of inclusions in K4169 Ni-based superalloy TANG Zhong-jie1, GUO Tie-ming1, 2, KOU... analysis was utilized to characterize the inclusions in K4169 Ni-based superalloy prepared by vacuum induction melting (VIM). The phases, compositions, morphologies, distribution and formation mechanism......
voltage pulsed magnetic field(LVPMF) disrupts the columnar dendrite growth, and the columnarto-equiaxed transition(CET) occurs during the directional solidification of superalloy K4169. Within...Influence of the low voltage pulsed magnetic field on the columnar-to-equiaxed transition during directional solidification of superalloy K4169Kuiliang Zhang1,2,Yingju Li1,2,Yuansheng Yang1,21......
硼对K4169高温合金流动性及缩松的影响周伟,刘林,介子奇,黄太文,张琰斌,张军,傅恒志西北工业大学凝固技术国家重点实验室摘 要:研究了微量硼对K4169高温合金相变温度,比热,表面张力,流动性及缩松的影响.采用自主设计的两种表征高温合金流动性的模型,研究了微量元素硼对K4169高温合金流动性的影响,测定了铸...金的表面张力逐渐降低.经过EDS分析,当硼含量为70 mg/kg时,合金中会析出硼化物.关键词:K4169高温合金;微量元素;硼;流动性;缩松;......
氮对K4169合金微观组织和力学性能的影响滕雨均1,2,欧美琼1,邢炜伟1,马颖澈1,刘奎11. 中国科学院金属研究所2. 中国科学技术大学摘 要:采用Thermo-Calc模拟计算,差热分析和等温凝固淬火试验(ISQ)相结合的方法,借助OM,SEM,EPMA及TEM等表征设备,系统研究了氮含量对K4169合金凝固组织演变行为,元素偏析行为以及力学性能的影响规律.结果表明,氮含量从17μg/g增大到100μg/g,合金中碳化物,氮化物的体积分数增大,氮化物析出温度升高.氮含量会影响碳化物的数量和形貌:在氮含量<50μg/g的合金中,MC型碳化物数量较多,尺寸较大且呈条状形貌;在氮含量为70μg/g和100μg/g的合金中大尺寸MC型碳化物数量显著减少,条型MC碳化物转变为块状.氮含量对K4169......
返回炉料添加量对K4169合金力学性能的影响 赵京晨1,赵明汉1,周波1 (1.钢铁研究总院高温材料研究所,北京,100081) 摘要:对添加不同比例返回炉料的K4169合金进行了力学性能,化学成分以及金相组织分析.结果表明:当返回炉料的添加量少于30%时,对合金整体性能影响不大;而当返回炉料的添加量超过30%后,合金性能发生明显变化.另外,合金中气体含量及Laves相含量的增加是导致合金性能下降的主要原因. 关键词:返回炉料; K4169合金; 力学性能; [全文内容正在添加中] ......
热等静压处理对K4169合金的改善作用 赵京晨1,燕平1 (1.钢铁研究总院高温材料研究所,北京,100081) 摘要:热等静压处理不仅能够闭合K4169合金铸件的显微疏松,还能闭合宏观孔洞.但是,实际生产中发现,有时热等静压处理不仅不能消除铸件的疏松和孔洞,而且铸件表面还出现荧光缺陷增多的现象.这是铸造工艺参数和铸型组合方式不合理造成的.另外,K4169合金铸件热等静压处理后进行标准热处理会使力学性能下降.为此,作者研究了一种改型热处理制度,这种改型热处理制度能明显提高铸件的力学性能. 关键词:K4169合金; 热等静压; 改型热处理; [全文内容正在添加中] ......
