A heteroepitaxial structure includes a first metal portion having a polycrystalline structure, a second metal portion on the first metal portion, the second metal portion has an island-shaped structure on the first metal portion, the second metal portion is provided corresponding to at least one crystalline grain exposed to a surface of the first metal portion, and the second metal portion and the at least one crystalline grain have a heteroepitaxial interface.

A heteroepitaxial structure includes a first metal portion having a polycrystalline structure, a second metal portion on the first metal portion, the second metal portion has an island-shaped structure on the first metal portion, the second metal portion is provided corresponding to at least one crystalline grain exposed to a surface of the first metal portion, and the second metal portion and the at least one crystalline grain have a heteroepitaxial interface.

Provided are a Sn—Bi—In-based low melting-point joining member used in a Pb-free electroconductive joining method in mounting a semiconductor component, and is usable for low-temperature joining, and a manufacturing method therefor.

A Sn—Bi—In-based low melting-point joining member, including a Sn—Bi—In alloy that has a composition within a range represented by a quadrangle in a Sn—Bi—In ternary phase diagram, a first quadrangle having four vertices including: Point 1 (1, 69, 30), Point 2 (26, 52, 22), Point 3 (40, 10, 50), and Point 4 (1, 25, 74), where Point (x, y, z) is defined as a point of x mass % Sn, y mass % Bi and z mass % In, and that also has a melting point of 60 to 110° C. As well as a method for producing a Sn—Bi—In-based low melting-point joining member, including a plating step of forming a plated laminate on an object to be plated, the plated laminate including a laminated plating layer obtained by performing Sn plating, Bi plating, and In plating respectively such that the laminated plating layer has a composition within the range represented by the first quadrangle.

Disclosed is a high corrosion-resistance strip steel, comprising a carbon steel base layer and a corrosion-resistance cladding layer roll-bonded with the carbon steel base layer, the corrosion-resistance cladding layer being austenitic stainless steel or pure titanium, the thickness of the corrosion-resistance cladding layer being 0.5% to 5% of the total thickness of the strip steel. In addition, further disclosed is a manufacturing method for the described high corrosion-resistance strip steel, comprising the steps of: (1) obtaining a base layer material and a cladding layer material; (2) assembling billets (3) pre-heating: pre-heating the billets at a temperature of 1150° C. to 1250° C., so that elements of the corrosion-resistance cladding layer and elements of the carbon steel base layer diffuse at the interface to form a stable transition layer, and then slowly cooling to room temperature; (4) secondary heating and rolling; and (5) water-cooling and then winding. The high corrosion-resistance strip steel finally provides, by means of rational component design, thickness design, and process design, the obtained steel plate or steel strip with a high corrosion-resistance surface and good interlayer bonding performance, and the steel plate or steel strip has good mechanical properties and processability.

The disclosure provides for a layered metal with resistance to hydrogen induced cracking and method of production thereof, comprising a core metal alloy and a skin metal alloy. The core metal alloy comprises twinned boundaries. The core metal alloy has undergone plastic deformation and a heat treatment. The core metal alloy comprises nickel and cobalt. The skin metal alloy is disposed on the core metal alloy, wherein the skin metal alloy comprises an entropy greater than the core metal alloy. The core metal alloy comprises a greater density of twinned boundaries than the skin metal alloy. The skin metal alloy comprises a stacking fault energy of at least about 50 mJ/m.sup.2, and the skin metal alloy comprises iron, aluminum, and boron.

The disclosure provides for a layered metal with resistance to hydrogen induced cracking and method of production thereof, comprising a core metal alloy and a skin metal alloy. The core metal alloy comprises twinned boundaries. The core metal alloy has undergone plastic deformation and a heat treatment. The core metal alloy comprises nickel and cobalt. The skin metal alloy is disposed on the core metal alloy, wherein the skin metal alloy comprises an entropy greater than the core metal alloy. The core metal alloy comprises a greater density of twinned boundaries than the skin metal alloy. The skin metal alloy comprises a stacking fault energy of at least about 50 mJ/m.sup.2, and the skin metal alloy comprises iron, aluminum, and boron.

Method for joining of at least two unweldable materials, non-weldable directly to each other with thermal joining processes in a lap joint configuration, where a two step sequence is used consisting of a first step to apply a thermomechanical or mechanical surface protection layer on the surface of an unweldable material and a second step, where a thermal joining process is used to joint the sprayed layer with an applied layer sheet.

It is an object to provide a method for producing a substrate for epitaxial growth having a higher degree of biaxial crystal orientation without forming an irregular part a3. The method for producing a substrate for epitaxial growth comprising a step of laminating a metal base material and a copper layer having an fcc rolling texture by surface-activated bonding, a step of applying mechanical polishing to the copper layer, and a step of carrying out orientation heat treatment of the copper layer, wherein the copper layer is laminated in such a way that, when ratios of the (200) plane of the copper layer before laminated and of the copper layer after laminated when measured by XRD are I0.sub.Cu and I0.sub.CLAD, respectively and ratios of the (220) plane of the copper layer before laminated and of the copper layer after laminated are I2.sub.Cu and I2.sub.CLAD, respectively, I0.sub.Cu<20%, I2.sub.Cu=70 to 90%, and I0.sub.CLAD<20%, I2.sub.CLAD=70 to 90% and I0.sub.CLAD−I0.sub.Cu<13%.

A storage container includes a container body having a storage space defined therein; and a container cover coupled to one side of the container body to open and close the storage space, wherein the container body includes: an inner layer forming an inner face of the container body defining the inner space; and an outer layer bonded to the inner layer and forming an outer face of the container body. The inner layer is made of titanium first material, and the outer layer is made of aluminum second material.

A non-oriented electrical steel sheet with an average magnetostriction λ.sub.p-p at 400 Hz and 1.0 T of not more than 4.5×10.sup.−6, and area ratio of recrystallized grains at a section in rolling direction of steel sheet of 40 to 95% and an average grain size of 10 to 40 μm is obtained by subjecting a steel slab containing, in mass %, C: not more than 0.005%, Si: 2.8 to 6.5%, Mn: 0.05 to 2.0%, Al: not more than 3.0%, P: not more than 0.20%, S: not more than 0.005%, N: not more than 0.005%, Ti: not more than 0.003%, V: not more than 0.005% and Nb: not more than 0.005% and satisfying Si—2Al—Mn≥0 to hot rolling, hot-band annealing, cold rolling and finish annealing under adequate cold rolling and finish annealing conditions, and a motor core is manufactured by such a steel sheet.