公开(公告)号：US5049355A

公开(公告)日：1991-09-17

申请号：US449909

申请日：1990-01-08

申请人： Udo Gennari ,  Wolfgang Glatzle

发明人： Udo Gennari ,  Wolfgang Glatzle

IPC分类号： C22C1/05 ,  C22C1/10 ,  C22C32/00

CPC分类号： C22C1/1078 ,  C22C32/0031

摘要： Process for producing a ductile, high strength, oxide dispersion hardened sintered alloy based on a metal having a high melting point. In the past, oxide dispersion has played only a minor role in comparison with other known processes for increasing strength. The process disclosed permits cost effective production of metallic materials which possess a strength hitherto unattainable by oxide dispersion and a higher ductility than prior art materials. As a result, the metallic and nonmetallic foreign components in the sintered alloy can be restricted to the relatively small quantities of dispersoids and any dissolved residual oxygen. The process consists in an annealing treatment and calls for a specific choice of basis metal and suitable oxide dispersoid. The materials so obtained are used mainly where metallic components possessing high strength and ductility together with a minimal concentration of foreign elements are required, for example in human medicine where stringent requirements concerning corrosion resistance and biocompatibility apply or in nuclear technology to prevent undesirable particle reactions.

摘要翻译： PCT No.PCT / EP89 / 00396 Sec。 371 1990年1月8日第 102（e）日期1990年1月8日PCT提交1989年4月13日PCT公布。 公开号WO89 / 09840 日期：1989年10月19日。用于制造基于具有高熔点的金属的延性，高强度氧化物分散硬化烧结合金的方法。 过去，与其他已知的增加强度的方法相比，氧化物分散体仅起了很小的作用。 所公开的方法允许成本有效地生产具有迄今无法通过氧化物分散的强度和比现有技术材料更高的延展性的金属材料。 结果，烧结合金中的金属和非金属异质成分可被限制在相对少量的分散相和任何溶解的残余氧中。 该方法包括退火处理，并要求对基础金属和合适的氧化物分散体进行具体选择。 所获得的材料主要用于具有高强度和延展性的金属组分以及外来元素浓度最低的金属组分，例如在对耐腐蚀性和生物相容性有严格要求的人类医学中或在核技术中以防止不期望的颗粒反应。

公开(公告)号：US20080075621A1

公开(公告)日：2008-03-27

申请号：US11869127

申请日：2007-10-09

申请人： Johannes Glatzle ,  Rolf Kosters ,  Wolfgang Glatzle

发明人： Johannes Glatzle ,  Rolf Kosters ,  Wolfgang Glatzle

IPC分类号： B22F3/12 ,  B22F1/00

CPC分类号： C22C1/051 ,  B22F7/02 ,  B22F2999/00 ,  C22C29/02 ,  C22C29/08 ,  B22F2207/01 ,  B22F2207/13 ,  B22F3/22

摘要： A component is produced by powder metallurgy from hard metal. The alloy includes at least one grain growth-inhibiting additive from the group consisting of V, Cr, Ti, Ta and Nb with, at least locally, a graduated concentration profile. As a result, the mechanical properties also have a graduated profile. In the fabrication process, a dispersion or solution which contains the grain growth-inhibiting additive in finely distributed or dissolved form is applied to the surface of a green compact. Penetration of this dispersion or solution along open pores leads to a graduated distribution of the grain growth-inhibiting additive in the green compact. There is also described a process in which the grain growth-inhibiting additive in the form of a solution is distributed uniformly in the green compact and is then gradually broken down from edge regions by a heat treatment or a solvent.

摘要翻译： 组分通过硬金属粉末冶金制备。 该合金包括至少一种由V，Cr，Ti，Ta和Nb组成的组的至少一种晶粒生长抑制添加剂，至少局部地具有分级浓度分布。 因此，机械性能也具有刻度轮廓。 在制造工艺中，将包含细分散或溶解形式的晶粒生长抑制添加剂的分散体或溶液施加到生坯的表面。 该分散体或溶液沿着开孔渗透导致生坯中的晶粒生长抑制添加剂的分级分布。 还描述了将溶液形式的晶粒生长抑制添加剂均匀地分布在生坯中，然后通过热处理或溶剂从边缘区逐渐分解的方法。

公开(公告)号：US4704249A

公开(公告)日：1987-11-03

申请号：US797494

申请日：1985-11-13

申请人： Wolfgang Glatzle

发明人： Wolfgang Glatzle

IPC分类号： B21C37/04 ,  C01G1/00 ,  C01G39/00 ,  H01B12/04 ,  H01B13/00 ,  H01L39/12 ,  H01L39/24 ,  B22F7/04 ,  B22F3/24 ,  B32B15/02

CPC分类号： H01L39/12 ,  H01L39/2412 ,  Y10T29/49014 ,  Y10T428/12083 ,  Y10T428/12097

摘要： The invention relates to a process for producing a superconducting wire, using, e.g., Chevrel phases as superconductors, in particular PbMo.sub.6 S.sub.8. Until now, it was not possible to produce superconducting wires from such materials in a technically usable quality. According to the process of the invention, the superconducting Chevrel phase is loaded vacuum-tight into a molybdenum shell and the unit is advantageously sealed in another jacket made of steel. The powdery superconducting phase has an average grain size of less than 1 .mu.m. For shaping the superconducting wire, the unit is extruded in a first process step at temperatures between 1000.degree. and 1600.degree. C. and reduced in cross section in excess of 1:10, and subsequently further treated in a plurality of process steps by additional extruding and/or hot drawing. Superconducting wires produced as specified above exhibit values for the critical quantities such as current bearing capacity, critical current density and limit values of the magnetic field that conform to those of the technically sophisticated superconductors of type II, or surpass the values of the latter type in individual instances. At the same time, it was possible to wind such wires to form coils without impairing the superconducting values due to the brittleness of the Chevrel phases.

摘要翻译： 本发明涉及使用例如Chevrel相作为超导体，特别是PbMo 6 S 8来生产超导线的方法。 到目前为止，不可能以技术上可用的质量从这些材料制造超导线。 根据本发明的方法，将超导雪佛兰相真空密封在钼壳中，该单元有利地密封在由钢制成的另一夹套中。 粉状超导相的平均粒径小于1μm。 为了使超导线材成形，该单元在第一工艺步骤中在1000℃至1600℃之间的温度下挤出，并且横截面减小超过1:10，随后通过另外的挤出在多个工艺步骤中进一步处理 和/或热图。 如上所述生产的超导线材显示出临界量的值，例如当前承载能力，临界电流密度和符合II型技术上复杂的超导体的磁场的极限值，或超过后者的值 个别情况。 同时，由于Chevrel相的脆性，可以将这种电线缠绕形成线圈而不损害超导值。