Abstract: An Fe-Ni alloy sheet for a shadow mask, which consists essentially of:nickel: from 34 to 38 wt. %,silicon: from 0.01 to 0.15 wt. %,manganese: from 0.01 to 1.00 wt. %, andthe balance being iron and incidental impurities.The surface portion of the alloy sheet has a silicon (Si) segregation rate, as expressed by the following formula, of up to 10%: ##EQU1## and a center-line mean roughness (Ra) of the alloy sheet satisfies the following formula:0.3 .mu.m<.ltoreq.Ra .ltoreq.0.7 .mu.m.The above-mentioned Fe-Ni alloy sheet is manufactured by preparing an Fe-Ni alloy sheet having the chemical composition and the silicon segregation rate as described above, and imparting a center-line mean roughness (Ra) which satisfies the above-mentioned formula onto the both surfaces of the alloy sheet by means of a pair of dull rolls during the final rolling of the alloy sheet for said preparation.

Abstract: An Fe-Ni alloy sheet for a shadow mask excellent in etching pierceability, preventing sticking during annealing, and inhibiting production of gases, which consists essentially of:______________________________________ nickel (Ni) from 34 to 38 wt. %, silicon (Si) from 0.01 to 0.09 wt. %, aluminum (Al) from 0.002 to 0.020 wt. %, calcium (Ca) from 0.0002 to 0.0020 wt. %, magnesium (Mg) from 0.0003 to 0.0020 wt. %, where, Ca + 1/2 Mg from 0.0005 to 0.0025 wt. %, ______________________________________andthe balance being iron and incidental impurities,where, the contents of carbon (C), nitrogen (N), sulfur (S), oxygen (O) and phosphorus (P) as the incidental impurities being respectively:up to 0.0050 wt.% for carbon,up to 0.0020 wt.% for nitrogen,up to 0.0020 wt.% for sulfur,up to 0.0040 wt.% for oxygen, andup to 0.0040 wt.% for phosphorus,where, 1/10 C+1/10 N+S+1/5 O+1/2P:up to 0.0045 wt.%, andCa+1/2 Mg.gtoreq.

Abstract: A method for manufacturing an Fe-Ni alloy cold-rolled sheet excellent in cleanliness and etching pierceability, comprising: preparing an Fe-Ni molten alloy, containing 30 to 45 wt. % nickel, and subjected to dephosphorization and decarburization; adding aluminum and flux to the Fe-Ni molten alloy in a ladle made of an MgO-CaO refractory containing 20 to 45 wt. %; strongly stirring the Fe-Ni molten alloy which contains the added aluminum and flux in the ladle to produce a CaO-Al.sub.2 O.sub.3 -MgO slag so as to react the Fe-Ni molten alloy with the CaO-Al.sub.2 O.sub.3 -MgO slag to deoxidize the Fe-Ni molten alloy while controlling a value of activity of SiO.sub.2 from 0.001 to 0.005 and a value of activity of Al.sub.2 O.sub.3 from 0.1 to 0.3 in the CaO-Al.sub.2 O.sub.3 -MgO slag, and the CaO-Al.sub.2 O.sub.3 -MgO slag having the following chemical composition: CaO and Al.sub.2 O.sub.3 : at least 57 wt. %, wherein the ratio of CaO/(CaO+Al.sub.2 O.sub.3) being at least 0.45, MgO: up to 25 wt. %, SiO.sub.

Abstract: A modified H-13 hot work die steel in which impact toughness and thermal fatigue resistance is greatly improved. The steel consists of in weight %:______________________________________ Carbon (C): 0.34-0.40, Manganese (Mn): 0.25-0.45, Silicon (Si): 0.85-1.15, Chromium (Cr): 5.00-5.40, Nickel (Ni): 0.30 max, Molybdenum (Mo): 1.20-1.50, Vanadium (V): 0.31-0.52, Niobium (Nb): 0.02-0.09, Iron (Fe) and Incidental impurities: Balance ______________________________________The steel also preferably includes about 0.01-0.20 weight % titanium (Ti) and is preferably subjected to premium quality treatment, including remelting and homogenization, either thermal or mechanical (by hot working).

Abstract: A process for manufacturing a thin sheet of a Cr-Ni-base stainless steel having an excellent surface quality and material quality, which comprises casting a cast strip having a thickness of 6 mm or less from a Cr-Ni-base stainless steel including 18% Cr-8% Ni steel by a continuous casting wherein a casting mold is moved synchronously with the cast strip, and subjecting the cast strip to cold rolling to form a thin sheet product, wherein the cast strip immediately after the casting is coiled at a temperature of 800.degree. to 1200.degree. C. and subjected to cold rolling and final annealing to form a thin sheet product.

Abstract: A method of making a steel article having a "Damascus" surface pattern wherein a steel melt comprising about 1.0 to about 2.0 weight % carbon is solidified to form an ingot, the ingot is heated between about 1100.degree. to about 1299.degree. C. for a time at temperature of about 5 to about 12 hours, a malleable envelope is formed about the ingot separately or concurrently with the heat treatment, and the enveloped ingot is shaped (e.g., forged) initially at an ingot temperature above the A.sub.r-gr temperature but below the liquidus temperature and then at an ingot temperature below the A.sub.cm temperature. The envelope is then removed from the shaped ingot.

Abstract: A method of improving the low temperature ductility of an iron-aluminide is taught. The aluminide for which the method is applicable is one having between 30 and 50 atom percent of aluminum. The aluminide may also have substituents for part of the iron and for the aluminum. The alloy may contain up to 10 atom percent of substituents for the iron selected from the group of metals comprising nickel cobalt chromium and manganese. The alloy may also contain substituents for the aluminum of up to 5 atom percent of a metal selected from the group comprising titanium, niobium, tantalum, hafnium, zirconium, vanadium, and silicon. The alloy has a B2 crystal structure. The first step of the process is to select the metal to be processed. The next step is to directionally solidify the selected metal. The next step is to determine the Ductile Brittle Transition Temperature (DBTT). The metal is then heated to above the DBTT and is deformed while above the DBTT temperature.

Abstract: A method for providing improved ductility in a gamma titanium aluminide is taught. The method involves adding inclusions of boron to the titanium aluminide containing chromium and tantalum and thermomechanically working the casting. Boron additions are made in concentrations between 0.5 and 2 atomic percent. Fine grain equiaxed microstructure is found from solidified melt. Property improvements are achieved by the thermomechanical processing.

Abstract: A cold reduced, non-aging, aluminum killed steel characterized by an elongated grain structure and having an r.sub.m value at least 1.8 produced from a slab having a reduced hot rolling temperature. A slab consisting essentially of .ltoreq.0.08% carbon, .ltoreq.0.1% acid sol. aluminum, .ltoreq.0.2% manganese, all percentages by weight, the balance iron and unavoidable impurities, is hot rolled to a sheet from a temperature less than 1260.degree. C. Preferably, the slab is continuously cast from a melt consisting essentially of 0.03-0.08% acid sol. aluminum, 0.003-0.007% total nitrogen, <0.20% manganese, wherein % acid sol. aluminum.times.% total nitrogen is within the range of 1.times.10.sup.-4 to 5.times.10.sup.-4 and is hot rolled from a temperature of 1093.degree.-1175.degree. C. The hot rolled sheet is descaled, cold reduced, batch annealed and temper rolled. Preferably, the cold reduced sheet is annealed in the range of 538.degree.-649.degree. C.