采用高真空电子束阻隔熔化连接异种金属V-5Cr-5Ti钒合金和HR-2不锈钢,通过焊缝成型、微观组织和接头性能的对比分析,研究不同镀层金属(Au、Ag、Cr和Ni)的影响.结果表明:通过电子束流的偏移均可实现V-5Cr-5Ti/Au(Ag、Cr、Ni)/HR-2异种金属的连接,接头平滑过渡,焊缝正反面成型良好;V-5Cr-5Ti与熔化区的界面较为平直,在靠近钒合金一侧形成一个明显的镀层金属富集带;熔化区内部晶粒细小均匀,在靠近HR-2处形成取向明显的树枝晶.Au和Ag起到了很好的阻隔作用,V-5Cr-5Ti/HR-2接头的抗拉强度明显增加,达到400 MPa,X射线探伤未发现裂纹和气孔缺陷;镀层金属为Cr、Ni时,接头抗拉强度低于100 MPa.
参考文献
| [1] | Muroga T.;Nagasaka T.;Abe K.;Chernov VM.;Matsui H.;Smith DL.;Xu ZY. Zinkle SJ. .Vanadium alloys - overview and recent results[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2002(Pt.a):547-554. |
| [2] | Rai R;Elmer JW;Palmer TA;DebRoy T .Heat transfer and fluid flow during keyhole mode laser welding of tantalum, Ti-6Al-4V, 304L stainless steel and vanadium[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2007(18):5753-5766. |
| [3] | Kurtz RJ;Abe K;Chernov VM;Hoelzer DT;Matsui H;Muroga T;Odette GR .Recent progress on development of vanadium alloys for fusion[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2004(0):47-55. |
| [4] | Fukumoto K;Matsui H;Narui M;Nagasaka T;Muroga T .Manufacturing pressurized creep tubes from highly purified V-4Cr-4Ti alloys, NIFS-Heat2[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2004(1):103-107. |
| [5] | Steward RV.;Chin BA.;Aglan HA.;Gan Y.;Grossbeck ML. .Furnace brazing type 304 stainless steel to vanadium alloy (V-5Cr-5Ti)[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2000(Pt.B):1224-1228. |
| [6] | Gan YX.;Steward RV.;Chin BA.;Grossbeck ML.;Aglan HA. .Microstructure-fracture toughness relationship of vanadium alloy/stainless steel brazed joints[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2001(2):157-164. |
| [7] | 陈国庆,张秉刚,庄园,邓冰辉,冯吉才.钽与不锈钢电子束焊接接头组织及性能[J].稀有金属材料与工程,2013(05):915-918,1104. |
| [8] | 张秉刚,王廷,陈国庆,冯吉才.钛合金与铬青铜电子束自熔钎焊接头组织与力学性能[J].稀有金属材料与工程,2012(01):129-133. |
| [9] | 王亚荣,滕文华,余洋,樊亚丽.铝/钛异种金属的电子束熔钎焊[J].机械工程学报,2012(20):88-92. |
| [10] | 冯吉才,王廷,张秉刚,陈国庆.异种材料真空电子束焊接研究现状分析[J].焊接学报,2009(10):108-112. |
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：
-
10%
-
20%
-
30%
-
40%
-
50%