Means for predicting preformance of stainless steel alloy for use with surgical needles

A new and useful predictor for maraging stainless steel alloys is created, called the martensite finish temperature, Mf ( DEG F.). This formula enables one to predict the temperature at which a steel is entirely converted to martensite, and is described as Mf=1027-78% Ni-27% Ti-34% Mo. A desirable n...

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Hauptverfasser:	MCGRANE, MATTHEW J, LAVIN, JEFFREY T, SARDELIS, TIMOTHY, TROZZO, LAWRENCE P, MCVEY, JEFFREY K, STUNGURYS, LEON K, FLOREZ, HUGO R, BENDEL, LEE P
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY DIAGNOSIS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FERROUS OR NON-FERROUS ALLOYS HUMAN NECESSITIES HYGIENE IDENTIFICATION INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEASURING MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL PHYSICS SURGERY TESTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A new and useful predictor for maraging stainless steel alloys is created, called the martensite finish temperature, Mf ( DEG F.). This formula enables one to predict the temperature at which a steel is entirely converted to martensite, and is described as Mf=1027-78% Ni-27% Ti-34% Mo. A desirable needle alloy for this amount is nickel at 10%, molybdenum at about 2.7%, and titanium at about 2%.