비만아 부모의 돌봄 경험: q 방법론

Recent advances on the development of magnesium alloys for biodegradable implants.

Get the phase diagram information you need at a price you can afford. Key Features: Peer reviewed by the Japanese Committee for Alloy Phase Diagrams. Updated through April 2000. Total number of diagrams = 2,332 (605 are new of greatly revised diagrams; among these 171 are not in Binary Alloy Phase Diagrams, 2nd Edition). Approximately 600 crystal structure tables of systems for which phase diagrams are unknown. You've been asking for a simple book containing just binary phase diagrams and crystal structure data. Desk Handbook: Phase Diagrams for Binary Alloys meets this need, and it presents the most current information. Updates the previous print compilation of binary phase diagrams by 10 years. Presents diagrams in consistent size. Shows the principal axis in atomic per cent, with a secondary axis in weight per cent. Includes an introductory article on phase diagrams and their use. Gives reference to the original literature source. This volume is the latest outgrowth of the phase diagram activity in which ASM International has been involved since 1978.

Desk handbook phase diagrams for binary alloys

A Review on Biomedical Titanium Alloys: Recent Progress and Prospect

Magnesium alloys as implant materials--principles of property design for Mg-RE alloys.

AZ91–xRE and Mg–6Al–xRE magnesium alloys were studied, where x is 0, 1, 2 and 3% (in weight percent, wt.%), respectively. Influence of rear earths (RE) on the microstructure was investigated. Fine morphology could be achieved by high cooling rate. By casting fluidity spiral specimens, fluidities of the alloys were achieved. The hardness and microhardness of the alloys was tested. RE improved fluidity and hardness. By casting specimens in permanent mold, tensile properties of the alloys with different RE additions at ambient and elevated temperatures were studied. RE had little effect on ambient temperature tensile strength of AZ91 alloy but greatly improved that of Mg–6Al alloy and high temperature tensile properties of both alloys. The fracture behavior of the alloys, which was changed by RE and high temperature, was examined by scanning electron microscopy (SEM) and optical microscopy. Fracture of the alloys is predominantly brittle cleavage or/and quasi-cleavage failure.

Effects of rare earths on the microstructure, properties and fracture behavior of Mg–Al alloys

Effect of Nd and Y addition on microstructure and mechanical properties of as-cast Mg–Zn–Zr alloy

Effects of extrusion ratio on the microstructure and mechanical properties of AZ31 Mg alloy

Microstructure and high tensile ductility of ZK60 magnesium alloy processed by cyclic extrusion and compression

The development of the microstructure in Mg–15Gd–5Y–05Zr alloys was investigated both in the as-cast condition and after solution heat treatment from 500 to 540 °C in the time range 05–72 h In the as-cast specimen, the main eutectic phase is Mg 5 (GdY) After the solution heat treatment, the continuous network-like Mg 5 (GdY) phase was fused into disconnected and fragmentized island morphology With the temperature increased and the time prolonged, almost all the Mg 5 (GdY) phase were spheroidized after 24 h at 500 °C After 12 h solution treatment at 525 °C, the Mg 5 (GdY) phase was completely dissolved, and some cuboid-shaped compound with composition of Mg 2 Y 3 Gd 2 comes into being The evolution of the microstructure from as-cast to cast-T4 involves α-Mg solid solution + Mg 5 (GdY) eutectic phase → α-Mg solid solution + spheroidized Mg 5 (GdY) phase → α-Mg supersaturated solid solution + cuboid-shaped compound (Mg 2 Y 3 Gd 2 )

Qudong Wang

Papers

Effects of rare earths on the microstructure, properties and fracture behavior of Mg–Al alloys

Effect of Nd and Y addition on microstructure and mechanical properties of as-cast Mg–Zn–Zr alloy

Effects of extrusion ratio on the microstructure and mechanical properties of AZ31 Mg alloy

Microstructure and high tensile ductility of ZK60 magnesium alloy processed by cyclic extrusion and compression

Behavior of Mg–15Gd–5Y–0.5Zr alloy during solution heat treatment from 500 to 540 °C