欢迎登录材料期刊网

材料期刊网

高级检索

研究了不同碳含量镍基单晶高温合金在不同固溶温度和压应变条件下的再结晶倾向性.结果表明:铸态γ'相的溶解是再结晶晶粒形成的重要条件;再结晶层厚度随固溶温度的升高而增大;随着应变量的增加,再结晶晶粒增加;热处理时间越长,则再结晶越容易发生;γ/γ'共晶、大γ'相和碳化物均具有阻碍再结晶生长的作用;在该合金系中碳无明显改善再结晶倾向性的作用.

参考文献

[1] 杨素玲,郑运荣.电厂燃气涡轮用单晶高温合金的进展[J].机械工程材料,2002(04):6-10.
[2] 李金国,王震,金涛,赵乃仁,孙晓峰,管恒荣,胡壮麒.抽拉速率对一种镍基单晶高温合金凝固组织的影响[J].机械工程材料,2002(04):17-19,46.
[3] Wukusick C S .Single crystal nickel-base superalloy article and method for making[P].US 5154884,1992-10-13.
[4] Walston W S;Ross E W;O'Hara K S et al.Nickel-base superalloy and article with high temperature strength and improved stability[P].US 5270123,1993-12-14.
[5] Erickson G L .Single crystal nickel-base superalloy[P].US 5366695,1994-01-06.
[6] Q.Z. Chen;N. Jones;D.M. Knowles .The microstructures of base/modified RR2072 SX superalloys and their effects on creep properties at elevated temperatures[J].Acta materialia,2002(5):1095-1112.
[7] Tin S;Pollock T M;King W T.Carbon addition and grain defeet formation in high refractory nickel-base single crystal superalloys[A].The Minerals Metals & Materials Society,2000:201-210.
[8] S. TIN;T.M. POLLOCK;W. MURPHY .Stabilization of Thermosolutal Convective Instabilities in Ni-Based Single-Crystal Superalloys: Carbon Additions and Freckle Formation[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(7):1743-1753.
[9] Y.H. Kong;Q.Z. Chen .Effect of minor additions on the formation of TCP phases in modified RR2086 SX superalloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1):135-143.
[10] Liu L R;Jin T;Zhao N R et al.Effect of carbon additions on the microstructure in a Ni-base single crystal superalloy[J].Materials Letters,2004,58(17-18):2290-2294.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%