某燃气轮机燃烧室合金高温蒸汽氧化行为研究

梁志远, 张超, 曲劲宇, 何建元, 郭亭山, 徐一鸣

Oxidation Behavior in Air-steam Mixed Atmosphere at 1000oC of Four Typical High-temperature Alloys for Gas Turbine

LIANG Zhiyuan, ZHANG Chao, QU Jinyu, HE Jianyuan, GUO Tingshan, XU Yiming

表1 4种镍基合金化学成分

Table 1 Chemical compositions of four experimental superalloys (mass fraction / %)

Superalloy Fe Cr Ni C B Mo Al Ti Co W Other element DD5 0 7.0 Bal 0.043 0.041 1.5 6.2 0 7.5 5 Hf:0.15;Re:3;Ta:6.5;Y:0.078 K447A 0 8.0 Bal 0.13 0.01 0.5 5.3 0.9 9.0 9.5 Ta:2.8; Hf:1.2; Zr:0.03 GH3230 0.41 22.50 Bal 0.09 0.006 1.35 0.33 0.05 1.58 4 La:0.006;Cu0.01 GH3536 18.16 21.21 Bal 0.08 0.003 8.84 0.16 0.02 1.13 0.54 Cu:0.02