摘要:
A heat-resistant and corrosion-resistant weld metal alloy consisting essentially of, by weight, less than 0.08% of C, 0.1 to 1.0% of Si, 2 to 3% of Mn, 32 to 42% of Ni, 21 to 25% of Cr, 0.8 to 1.7% of Mo, 0.1 to 1.0% of Nb, up to 0.5% of Ti, up to 2% of Co, up to 2% of Cu, up to 1% of W, up to 0.2% of N, up to 1.0% of V, up to 1.0% of Zr, up to 1.0% of Ta and the balance Fe, wherein the following conditions are met: Ti+Zr.ltoreq.1.0%, Ni+Co.ltoreq.42%, W+V.ltoreq.1.0%, Nb+Ta.ltoreq.1.0%, and 4.ltoreq.Nb/C.ltoreq.15; and an austenitic welded structure composed of an austenitic structural alloy and of a weld metal of the above-mentioned kind are provided by the invention.
摘要翻译:一种耐热和耐腐蚀的焊接金属合金,主要由以下组成:C:0.08%以下,Si:0.1〜1.0%,Mn:2〜3%,Ni:32〜42%,Ni:21〜25% 的Cr,0.8〜1.7%的Mo,0.1〜1.0%的Nb,至多0.5%的Ti,至多2%的Co,至多2%的Cu,至多1%的W,至多0.2%的 N,至多1.0%的V,至多1.0%的Zr,至多1.0%的Ta和余量的Fe,其中满足以下条件:Ti + Zr = 1.0%,Ni + Co = 42 %,W + V <1.0%,Nb + Ta <1.0%,4≤Nb/C≤15; 本发明提供由奥氏体结构合金和上述类型的焊接金属组成的奥氏体焊接结构体。
摘要:
A sliding mechanism comprising two members maintained in sliding contact with each other, wherein one of the members (which may be a pin) is formed of an alloy consisting essentially of, by weight, less than 0.3% carbon, 7-40% nickel, 15-28% chromium, 2-8% silicon, 3-12% manganese and the balance essentially iron, and the other member (which may be a roller) is formed of an alloy consisting essentially of, by weight, less than 0.5% carbon, 13-22% chromium, less than 2% silicon, less than 2% manganese, 3-10% molybdenum, 10% of at least one of titanium and aluminum and the balance essentially nickel, the two members having a difference in Vickers hardness of below 200 at their contact surfaces. The sliding mechanism has particualr utility as means for guiding a control rod of a nuclear reactor by means of pins and rollers.