摘要:
This ferritic stainless steel sheet contains, by mass%, C: 0.02% or less, Si: 0.15% or less, Mn: 0.3% to 1%, P: 0.04% or less, S: 0.003% or less, Cr: 20% to 25%, Mo: 0.5% to 2%, Al: 0.1% or less, N: 0.02% or less, and Nb: 0.001% to 0.5%, with a balance being Fe and unavoidable impurities, in which an expression (1) is satisfied:
here, Mn, Si, and Al represent the contents (mass%) of the respective elements.
摘要:
The invention provides a process for producing an alumina coating composed mainly of α-type crystal structure on a sintered cBN base material composed of a binder phase and a cubic boron nitride dispersed layer, comprising oxidizing the surface of said sintered cBN base material, and then forming an alumina coating. The invention further provides a member clad with an alumina coating composed mainly of α-type crystal structure which is a clad member including a sintered cBN composed of a binder phase and a cubic boron nitride dispersed phase, and an alumina coating of α-type crystal structure applied thereto, said member further comprising an oxide-containing layer interposed in the interface between said sintered cBN base material and said alumina coating.
摘要:
A titanium alloy comprising an elevated level of oxygen is disclosed. The alloy may have 5.5 to 6.75 weight percent of aluminum, 3,5 to 4.5 weight percent of vanadium, 0.21 to 0.30 weight percent of oxygen, and up to 0.40% of weight percent of iron. The alloy may also have a minimum ultimate tensile strength of 130,000 psi, a minimum tensile yield strength of 120,000 psi, and a minimum ductility of 10% elongation. Also disclosed is a method for manufacturing components having the aforementioned alloy.
摘要:
A method for use with a coating process includes depositing a ceramic coating on a substrate (12) within a coating chamber (14). Prior to depositing the ceramic coating, an electron beam source (20) is used to heat a ceramic material (18). The ceramic material (18) radiates heat to heat a substrate (12) to an oxidation temperature to form an oxide layer on the substrate (12). A desired evaporation rate of the ceramic material (18) is established during the heating to thereby provide an improved ceramic coating.