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1. A Cu-Ni alloy of composition 70 wt% Ni - 30 wt% Cu is slowly heated from a temperature of 1300°C. (1) At what temperature does the first liquid phase form? What is the composition of this liquid phase? (2) At what temperature does complete melting of the alloy occur? Composition (at% Ni) 40 60 1600 1500 1400 1300 1200 1100 1000 1085°C 0 (Cu) 20 20 Liquid 1345 C Liquidus line First liquid (59 wt% Ni) a+L Solidus line 40 60 Composition (wt% Ni) 80 1453°C 80 Last solid (79 1% Ni) 100 -1380°C 2800 2600 2400 2200 2000 Temperature (°F) 100 APL (Ni)

1. A Cu-Ni alloy of composition 70 wt% Ni - 30 wt% Cu is slowly heated from a temperature of 1300°C. (1) At what temperature does the first liquid phase form? What is the composition of this liquid phase? (2) At what temperature does complete melting of the alloy occur? Composition (at% Ni) 40 60 1600 1500 1400 1300 1200 1100 1000 1085°C 0 (Cu) 20 20 Liquid 1345 C Liquidus line First liquid (59 wt% Ni) a+L Solidus line 40 60 Composition (wt% Ni) 80 1453°C 80 Last solid (79 1% Ni) 100 -1380°C 2800 2600 2400 2200 2000 Temperature (°F) 100 APL (Ni)

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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1. A Cu-Ni alloy of composition 70 wt% Ni - 30 wt% Cu is slowly heated from a temperature of 1300°C. (1) At what temperature does the first liquid phase form? What is the composition of this liquid phase? (2) At what temperature does complete melting of the alloy occur? Composition (at% Ni) 40 0 16007 30 1500 Temperature (°C) 1400 1300 1200 13h00 1100 e 1000 T 1085°C 0 ko (Cu) 1 20 20 Liquid 1345 C Liquidus line 40 60 First liquid (59 wt% Ni) a +L Solidus line 60 Composition (wt% Ni) (a) 80 T 80 1453°C Last solid (79 wt% Ni) 100 1380°C 2800 2600 2400 2200 2000 Temperature (°F) 100 TATRA (Ni)
Transcribed Image Text:1. A Cu-Ni alloy of composition 70 wt% Ni - 30 wt% Cu is slowly heated from a temperature of 1300°C. (1) At what temperature does the first liquid phase form? What is the composition of this liquid phase? (2) At what temperature does complete melting of the alloy occur? Composition (at% Ni) 40 0 16007 30 1500 Temperature (°C) 1400 1300 1200 13h00 1100 e 1000 T 1085°C 0 ko (Cu) 1 20 20 Liquid 1345 C Liquidus line 40 60 First liquid (59 wt% Ni) a +L Solidus line 60 Composition (wt% Ni) (a) 80 T 80 1453°C Last solid (79 wt% Ni) 100 1380°C 2800 2600 2400 2200 2000 Temperature (°F) 100 TATRA (Ni)
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